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NVIDIA DGX Spark vs Valve Steam Machine (2026)

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Product A: NVIDIA

DGX Spark

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Product B: Valve

Steam Machine (2026)

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ANVIDIA DGX Spark

BValve Steam Machine (2026)

General

7 of 9 differ

Series

DGX6Press releasenvidianews.nvidia.com/news/nvidia-announces-dgx-spark-and-dgx-station-personal-ai-computersRead 10 October 2026

Steam Machine1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

940-54242-00001Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026The ECMA-109 noise declaration table names product NVIDIA DGX Spark, 940-54242-0000, with 128 GB LPDDR5x and up to 4 TB NVMe M.2. Taken as the part number of the 128 GB Founders Edition. OEM partner systems have their own part numbers.

Not available

GTIN / EAN

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AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

18 March 20256Press releasenvidianews.nvidia.com/news/nvidia-announces-dgx-spark-and-dgx-station-personal-ai-computersRead 10 October 2026March 18, 2025 release announces DGX Spark, formerly Project DIGITS. The earlier Project DIGITS reveal at CES 2025 used another name.

12 November 20253Reviewifixit.com/Device/Steam_Machine_%282026%29Read 8 October 2026Background Information explicitly says announced November 12, 2025 alongside Steam Controller and Steam Frame. This is the 2026 retail device, not the 2013 prototype or third-party 2015 Steam Machines.

Status

Available1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026The page offers DGX Spark for sale through NVIDIA and partners.

Available1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Reference is the marketed 512 GB model without a Steam Controller. The public English store page has four distinct purchase options: 512 GB, 512 GB with Controller, 2 TB, and 2 TB with Controller. Store package 1629447 identifies the 512 GB option but is not a physical manufacturer model number. Availability is through reservation invitations and a waitlist. It does not mean unrestricted stock. Launch FAQ says purchase invitations start the week of June 29, 2026. Current iFixit repair documentation confirms June shipping.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

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SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

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Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$3,99910Press articleservethehome.com/the-nvidia-dgx-spark-is-a-tiny-128gb-ai-mini-pc-made-for-scale-out-clustering-armRead 10 October 2026Pre-order page lists the NVIDIA DGX Spark 4TB at USD 3999. A later ServeTheHome article says the 128GB/4TB model launched at USD 3999. Current higher prices are not launch prices. Tax treatment is not stated.

$1,0492Press articlepcgamer.com/hardware/gaming-pcs/steam-machine-priceRead 8 October 2026June 22, 2026 contemporaneous launch table lists 512 GB without Controller at 1049 USD and 1039 EUR. The separate controller bundle is 1128 USD / 1108 EUR and is excluded. These are announced launch prices, not later sale prices. Valve hardware billing terms separately establish US prices before sales tax and EU prices including VAT. Both 2 TB options add two faceplates, which are excluded from the 512 GB reference.11Maker product pagestore.steampowered.com/subscriber_agreementRead 8 October 2026Section 3.A, Payment Authorization explicitly covers Hardware purchases and says applicable use or sales taxes may be charged in addition to published fees. Exact Steam Machine Limited Drop Program terms confirm the product is sold at listed prices plus applicable taxes. The US 1049 USD launch figure is before location-dependent sales tax.12Maker product pagehelp.steampowered.com/en/faqs/view/5843-1C80-BF67-EC3FRead 8 October 2026Notice and Opportunity section explicitly says Steam Machine is sold for product-page listed prices plus applicable taxes. Shipping or tax charges are not included in the stored US launch MSRP.

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€1,0392Press articlepcgamer.com/hardware/gaming-pcs/steam-machine-priceRead 8 October 202611Maker product pagestore.steampowered.com/subscriber_agreementRead 8 October 2026Section 3.A states all Steam fees in the European Union and United Kingdom include VAT, with collected VAT reflecting Hardware and other purchases. The published 1039 EUR Steam Machine launch figure is therefore VAT inclusive. No country-specific VAT conversion is performed.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US10Press articleservethehome.com/the-nvidia-dgx-spark-is-a-tiny-128gb-ai-mini-pc-made-for-scale-out-clustering-armRead 10 October 2026US pre-order page.

US, EU, GB, CA, AU1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Maker purchase FAQ identifies North America, United Kingdom/European Union, and Australia as separate shipping regions. USD, CAD, EUR, GBP and AUD launch listings corroborate the listed markets. Asian distributor markets are not included in this regional reference.

ColoursiThe maker's own colour names

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Black4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026Standard chassis and default front faceplate are black. Red fabric and solid walnut extra faceplates supplied with 2 TB models are not 512 GB color variants. White-background photograph depicts the default black retail assembly only.

SegmentiUse the maker's product category. Do not assign a use case from performance or appearance alone.

Workstation1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026NVIDIA lists DGX Spark under its Workstations product category.

Gaming1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Form factoriThe maker's stated chassis class. Generic tower does not imply a full, mid or mini tower tier.

Small form factor2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Physical Specifications: Chassis Type Small form factor (SFF). Maker word used as the chassis class.

Small form factor1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Core features explicitly calls the chassis Small form factor. Valve describes Steam Machine as a PC and an extension of PC gaming. The desktop type does not classify it as a home game console.

Case

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Case dimensionsiChassis width, height and depth in the stated orientation. Source notes identify feet, handles or brackets excluded by the maker. An all-in-one is measured with its included stand when the maker gives both sizes.

Width150Height50.5Depth150mm(5.9 × 2 × 5.9 in)1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026150 mm L x 150 mm W x 50.5 mm H. Stored as width 150, depth 150 and height 50.5.

Width156Height152Depth162.4mm(6.1 × 6 × 6.4 in)1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Tech Specs, Size and Weight: 156 mm wide, 152 mm tall including feet, 162.4 mm deep. Height without feet is 148 mm. The precise labelled dimensions are used rather than the rounded 6-inch cube description.

Case volumeiVolume published by the maker. It may differ from the outer dimensions multiplied together.

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WeightiPublished system weight for the stated configuration. Source notes distinguish maximum, approximate and starting weights. An all-in-one is weighed with its included stand when the maker gives both weights.

1.2kg(2.6 lb)1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026System weight 1.2 kg.

2.6kg(5.7 lb)1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Case model

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Case materialsiPublished materials of the enclosure and panels, not every internal component. An edition with other panels, such as a wood front, can differ, so it is per variant.

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Side panel

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Front panel

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Solid8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Thermal section repeatedly identifies the factory front plate as solid. It distinguishes aftermarket perforated and filtered plates from the supplied panel.

Tool-less side paneliWhether the side panel can be opened without a tool after any shipping or security screw is removed. Conditions belong in the source note.

Not available

No5Owner's manualifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/225338Read 8 October 2026Steps 3-8 remove rubber feet with Torx screws, two captive rear-panel Torx screws and two inner-assembly screws before extracting the chassis assembly. This is not tool-less access to system components. The front cosmetic faceplate is magnetic but is not an access side panel.

Dust filters

Not available

No8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Stock chassis is explicitly contrasted with the reviewer's aftermarket plate and filter. Adding that filter makes the machine filtered for dust. The reference has the factory solid plate and no aftermarket filter.

VESA mount

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Display

None of 6 known

Screen sizeiActual diagonal of the primary built-in all-in-one display. Do not substitute a rounded marketed size. External bundled monitors and chassis status screens are excluded.

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Native resolutioniPhysical pixel resolution of the primary built-in all-in-one display. External video-output limits, bundled monitors and chassis status screens do not qualify.

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Panel typeiPublished panel technology of the primary built-in all-in-one display. A display brand name alone does not establish panel technology. External bundled monitors and chassis status screens are excluded.

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Max refresh rateiHighest published refresh rate of the primary built-in display at native resolution. External video-output limits do not qualify.

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TouchscreeniPublished touch-input support of the primary built-in display. A touchscreen status panel does not qualify.

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Brightness (SDR, claimed)iManufacturer ordinary brightness rating of the primary built-in display. Preserve published conditions in source notes. Not HDR peak, outdoor peak or a reviewer measurement.

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Motherboard

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Motherboard

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Chipset

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Motherboard form factoriMotherboard dimensions class, not the size of the computer case.

Not available

Proprietary8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Steam Machine 512 GB parts table identifies the motherboard, case and CPU cooler as proprietary, not standard Mini-ITX retail parts. No chassis-volume calculation or mechanical board size is substituted.

CPU socket

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Expansion slotsiPhysical card slots and WLAN M.2 slots. Storage M.2 slots belong in storage_slots. Mechanical slot shape and electrical lane width are separate.

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PCIe x16 slotsiCounts mechanically x16 card slots, including occupied slots. A slot may have fewer electrical lanes.

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Free expansion slotsiCounts slots documented as unoccupied. GPU thickness can block access to an unoccupied slot.

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Fan headersiPhysical connectors for fans on the motherboard, not the number of installed fans.

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Overclocking in BIOSiTrue when BIOS permits CPU or memory tuning. Source notes must distinguish XMP or EXPO memory tuning from CPU multiplier overclocking.

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No8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026BIOS section states there are no overclocking options and no TDP or PPT bypasses and no memory speed or timing controls. Performance settings are limited and set inside the OS.

Processor

13 of 16 differ

Processor

NVIDIA GB10 Grace Blackwell Superchip1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Specifications table: 20-core Arm, 10 Cortex-X925 + 10 Cortex-A725, in the NVIDIA GB10 Grace Blackwell Superchip.

Semi-custom AMD Zen 41Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Processor brand

NVIDIA1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026

AMD1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Processor codenameiChip maker's processor or platform codename. This is separate from each core's architecture name.

Grace Blackwell1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Architecture row: NVIDIA Grace Blackwell. The chip is named GB10.

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Core configurationiOne row per stated core category. Apple super cores are distinct from performance cores. Clock values describe that category.

ANVIDIA DGX Spark

Core type	Count	Core	Max core turbo clock (GHz)
Performance	10	Arm Cortex-X925	4.004
Efficiency	10	Arm Cortex-A725	2.86

Source1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Specifications table: 20-core Arm, 10 Cortex-X925 + 10 Cortex-A725, in the NVIDIA GB10 Grace Blackwell Superchip. NVIDIA does not class the cores as performance or efficiency and publishes no clocks. The split follows ServeTheHome. Max clocks come from the SPEC CPU 2026 report.7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 3: ten Arm Cortex-X925 performance cores and ten Cortex-A725 efficient cores. NVIDIA does not class the cores as performance or efficiency. The split follows ServeTheHome and the SPEC CPU 2026 report. Max clocks come from the SPEC report.11Spec databasespec.org/cpu2026/results/res2026q2/cpu2026-20260210-00020.htmlRead 10 October 2026lscpu in the SPEC CPU 2026 report: CPU max MHz 4004 for the Cortex-X925 cores and 2860 for the Cortex-A725 cores, stored as 4.004 and 2.86 GHz. The report calls the CPU nominal 3900 MHz, and the BIOS name is GB10 Spark CPU @ 3.9GHz. NVIDIA publishes no core clocks. Base clocks are not stated, so none are stored. The report states 5 e-cores and 5 p-cores in each of two clusters, which matches the performance and efficiency split.

BValve Steam Machine (2026)

Count	Core	Max core turbo clock (GHz)
6	Zen 4	4.8

Source1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026General tech specs states six cores and twelve threads, Zen 4, up to 4.8 GHz and 30 W TDP. No base clock or separate core-category classification is published, so neither is assigned. The platform name Fremont is not substituted for an AMD processor codename. The 4.8 GHz maker claim is retained instead of 4.86 GHz reported by pre-release benchmark uploads.

CPU cores

20=CalculatedFrom Core configuration

6=CalculatedFrom Core configuration

Performance coresiCounts rows explicitly classified as performance cores. Apple super cores are stored separately and excluded.

10=CalculatedFrom Core configuration

Not available

Efficiency coresiCounts efficiency and low-power efficiency cores. Zero means a complete stated core configuration has no such cores.

10=CalculatedFrom Core configuration

Not available

Threads

2011Spec databasespec.org/cpu2026/results/res2026q2/cpu2026-20260210-00020.htmlRead 10 October 2026Hardware section: 20 cores enabled on 1 chip (10x Cortex-X925, 10x Cortex-A725). The lscpu output in the report lists Thread(s) per core: 1 for both core types, so 20 threads. Result for the NVIDIA DGX Spark, test sponsor Arm, run 2026-02-06.

121Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Max core turbo clockiHighest core-category turbo or boost clock in cpu_clusters. Separate favored-core or processor-level boost ratings are not substituted for a category's published turbo clock.

4.004GHz=CalculatedFrom Core configuration

4.8GHz=CalculatedFrom Core configuration

L3 cache

24MB8Reviewtomshardware.com/pc-components/gpus/nvidia-dgx-spark-reviewRead 10 October 2026Page 2: the CPU has two clusters, one with 16 MB of shared L3 cache and the other with 8 MB. The 24 MB total is the sum of the two stated values.

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CPU core process nodeiPublished CPU-core fabrication node. Package components and I/O dies may use other nodes. Maker node name belongs in the source note.

3nm7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 2 key specs name TSMC 3nm process technology for the GB10. Maker node name is not published on the maker pages.

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CPU base power (chip rating)iChip maker's base-power or default-TDP rating. It is not measured wall power or the PC maker's configured power limit.

140W2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Power Requirements: GB10 SoC Thermal Design Power (TDP) is 140 W. NVIDIA rates the whole SoC, CPU and GPU together, and gives no separate CPU figure. 100 W is left for other system components.

30W1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Published semi-custom CPU rating is 30 W TDP. It is not measured wall power or a documented configurable peak power limit.

Peak CPU power (configured)iPower limit configured by the PC maker, such as PL2 or PPT. Do not substitute the chip maker's maximum turbo-power rating.

Not available

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Unlocked multiplier

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NPU performanceiPublished NPU throughput only. GPU, total-system AI throughput and different precision modes are separate. Precision belongs in the source note.

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Integrated GPU

NVIDIA Blackwell GPU (GB10)1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026The Blackwell GPU (5th-generation Tensor Cores, 4th-generation RT Cores) is part of the GB10 Superchip. NVIDIA gives no CUDA core count on this page. The user guide lists 6,144 CUDA cores.

Not available

Cooling

0 of 6 differ

CPU cooler

Air7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 4: there is a fan running. Fan count and size are not stated.

Air4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026June 22 final review describes a substantial heatsink and single 120 mm rear fan moving air across the internal components. It reviews the 2 TB controller bundle but explicitly describes the common Steam Machine chassis and processor hardware. Its game results, temperatures and other measured results are not transferred to the 512 GB model. No case-fan count is stored because this fan is attached to the shared CPU/GPU heatsink.

CPU cooler model

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Radiator size

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Radiator position

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Case fansiInstalled chassis airflow fans, including radiator fans. Excludes GPU, PSU and standalone CPU-cooler fans. Count fan rotors, including multiple rotors in a single-frame assembly. A mini PC whose only fan cools the processor and moves the air through the case counts that fan.

Not available

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Number of case fansiSum of documented chassis and radiator fan rotors. Excludes GPU, PSU and standalone CPU-cooler fans.

Not available

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Graphics

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Discrete GPU

No1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026The GPU is inside the GB10 Superchip with the CPU and shares its unified memory. No separate graphics card is installed.

Yes1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026CPU and GPU core-features section explicitly states discrete semi-custom AMD desktop-class CPU and GPU. These are separate chips, not an integrated graphics claim. No removable graphics card or slot is implied.

GPUiDiscrete graphics chip. Integrated graphics belong in integrated_gpu.

Not available

Semi-custom AMD RDNA 31Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Semi-custom AMD RDNA 3 GPU with 28 compute units. Maker states 2.45 GHz maximum sustained clock, which is not labelled a boost clock and is not stored in gpu_boost_clock_mhz.

GPU brand

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AMD1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Graphics card

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VRAM

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8GB1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

VRAM type

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GDDR61Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

GPU board poweriConfigured total board power of the installed card. A chip-family reference rating is not proof of an OEM card limit.

Not available

110W1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Maker GPU specification calls the 110 W envelope TDP. Matching PC Gamer final review describes it as 110 W TGP. This is the product's published GPU power envelope, not transient measured power.

GPU boost clockiPublished boost clock for the installed graphics card and mode. Do not use a measured transient clock or another board model's rating.

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Graphics card length

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Graphics card thicknessiCard thickness in PCIe bracket-slot units, such as 2.5. This is not the number of connectors or motherboard slots.

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GPU power connector

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None13Owner's manualifixit.com/Guide/Steam+Machine+(2026)+Motherboard+Replacement/225348Read 10 October 2026OEM Guide shows the CPU, GPU and VRAM on one motherboard that is bonded to the heatsink and joined to the power supply by two metal prongs. The GPU is not a card and has no PCIe power connector.

Memory

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RAM

128GB1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Specifications table: 64 GB or 128 GB LPDDR5X coherent unified system memory. The 64 GB option is only sold by OEM partners, so the Founders Edition reference has 128 GB.

16GB1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

RAM type

LPDDR5X1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026System memory is LPDDR5X coherent unified memory with a 256-bit interface.

DDR51Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Configured RAM speediMemory transfer rate configured on delivery. A rated XMP or EXPO profile may be faster when it is disabled.

8,533MT/s2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Performance Specifications: 16 channels (256 bit) LPDDR5X 8533. The component table lists 4266 MHz. 8533 MT/s is the configured rate, with no separate rated profile.

5,600MT/s8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Review explicitly states 16 GB DDR5-5600 for both marketed storage models. The later Valve correction changes module count, not the advertised 5600 rate. This is nominal shipped memory speed, not measured RAM bandwidth or an XMP/EXPO rating.

Rated kit speediRated memory-kit or profile speed. This can differ from the speed configured on delivery.

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Memory kit

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RAM upgradeiHow installed memory is physically attached. Purchase-time capacity choices do not mean memory can be upgraded later.

Soldered7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 2 motherboard photo: the GB10 package is flanked by 128 GB of LPDDR5X memory. Memory sits on the board next to the SoC, not in user slots. Stored as soldered.

Slots5Owner's manualifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/225338Read 8 October 2026

Memory slotsiPhysical replaceable memory connectors, with one row per occupancy state. Package-integrated memory is not a DIMM slot.

ANVIDIA DGX Spark

Not available

BValve Steam Machine (2026)

Slot	Count	Occupied	Module size (GB)
SO-DIMM	1	Yes	16
SO-DIMM	1	No	Not available

Source5Owner's manualifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/225338Read 8 October 2026Introduction confirms two physical SO-DIMM slots. One occupied 16 GB slot and one free slot reflect Valve's later June 25 correction reported by Tom's Hardware. Earlier GamersNexus text allowed either 1 x 16 GB or 2 x 8 GB, but that was explicitly corrected by Valve for shipping units. Module maker and maximum supported capacity are not fixed by these sources.6Press articletomshardware.com/video-games/console-gaming/steam-machines-will-only-come-with-one-16gb-stick-of-ram-company-may-change-this-to-two-8gb-sticks-in-the-future-but-the-first-batch-of-consoles-is-limited-to-single-channel-memoryRead 8 October 2026June 25, 2026 report publishes Valve's correction to GamersNexus: all shipping units have one 16 GB stick. Earlier statement that either one 16 GB or two 8 GB modules could be used was a mistake. Possible future batches are not stored as variants.

RAM slots

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2=CalculatedFrom Memory slots

Free RAM slots

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1=CalculatedFrom Memory slots

Max RAM for this CPU and GPUiMaximum stated capacity without changing the CPU or GPU configuration represented by this product. For integrated memory this is a purchase-time limit. For slot-based RAM it is the maker's supported upgrade limit.

128GB1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026128 GB is the largest listed configuration. The memory is unified between CPU and GPU. It is a purchase-time choice, not an upgrade path.

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ECC memoryiSystem-level ECC memory support or configuration. DDR5 on-die ECC alone does not establish this field.

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Storage

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Storage

4TB=CalculatedFrom Installed drives

512GB=CalculatedFrom Installed drives

Installed drivesiInstalled drives, one row per physical drive. Capacity is in decimal GB. Use the generic SSD option when its protocol is not published. It does not establish an interface or socket. Do not represent alternative purchase capacities as installed drives.

ANVIDIA DGX Spark

Capacity (GB)	Type	PCIe generation
4,000	NVMe SSD	5

Source1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Specifications table: up to 4 TB NVMe M.2 with self-encryption. The datasheet and the reviewed Founders Edition list 4 TB, stored as 4000 GB decimal. The user guide also lists a 1 TB option. The PCIe generation comes from StorageReview. Drive model is not stated.15Reviewstoragereview.com/review/nvidia-dgx-spark-review-the-ai-appliance-bringing-datacenter-capabilities-to-desktopsRead 10 October 2026lstopo and the board photo: the SSD is a PCIe Gen5 2242 M.2 drive. The reviewed unit has a 4TB Samsung NVMe drive. The drive model is not stated.

BValve Steam Machine (2026)

Capacity (GB)	Type
512	NVMe SSD

Source1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Only the selected 512 GB NVMe SSD is stored. The separately sold 2 TB model and both controller bundles are excluded. No Steam Deck drive specification, SSD brand, NAND type, PCIe generation or sequential rate is borrowed.

Storage slots and baysiPhysical SSD connectors and drive bays, counted once each. Multiple supported M.2 lengths or alternative bay uses do not create extra slots.

ANVIDIA DGX Spark

Form factor	Interface	PCIe generation	PCIe lanes	Count	Occupied
M.2 2242	PCIe NVMe	5	4	1	Yes

Source8Reviewtomshardware.com/pc-components/gpus/nvidia-dgx-spark-reviewRead 10 October 2026Hardware section: a removable rubber foot hides the wireless antennas and gives access to the user-replaceable M.2 2242 SSD. The reviewed Founders Edition came with a 4 TB drive. One slot, occupied. PCIe generation and lanes come from StorageReview.15Reviewstoragereview.com/review/nvidia-dgx-spark-review-the-ai-appliance-bringing-datacenter-capabilities-to-desktopsRead 10 October 2026lstopo: the 2242 M.2 SSD connects with PCIe Gen5 x4.

BValve Steam Machine (2026)

Form factor	Interface	Count	Occupied
M.2 2230	PCIe NVMe	1	Yes

Source7Owner's manualifixit.com/Guide/Steam+Machine+(2026)+SSD+Replacement/225213Read 8 October 2026OEM Guide introduction explicitly states one M.2 NVMe socket compatible with 2230 or 2280 SSDs. Steps 9-11 remove the factory small SSD and reposition its standoff for 2280. One occupied 2230 socket is stored. The 2280 mounting position is the same socket, not another free slot. PCIe generation and electrical lanes are not stated.

M.2 slots

1=CalculatedFrom Storage slots and bays

1=CalculatedFrom Storage slots and bays

Free M.2 slots

0=CalculatedFrom Storage slots and bays

0=CalculatedFrom Storage slots and bays

Free drive bays

0=CalculatedFrom Storage slots and bays

0=CalculatedFrom Storage slots and bays

Fastest storage-slot PCIe generationiHighest documented PCIe generation of a storage slot. This does not identify the installed drive's generation.

5=CalculatedFrom Storage slots and bays

Not available

Power supply

2 of 7 differ

PSU rated outputiPower supply's rated output, or an external adapter's output rating. Maximum system consumption, peak PSU power and wall draw are separate.

240W2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Power Requirements: 240 W external power supply (included). GB10 SoC TDP is 140 W, with 100 W for other components. The provided adapter is required for full performance.

300W8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Steam Machine 512 GB parts table explicitly lists internal 300 W PSU, also confirmed by Tom's Hardware final review. Manufacturer page confirms internal 110-240 V AC supply. PSU rating is not summed CPU/GPU TDP or wall power.

PSU form factoriReplacement PSU dimensions class. Electrical standards such as ATX12VO belong in psu_atx_version. A supply built into an all-in-one is proprietary unless the maker names a standard size.

External adapter2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026

Proprietary8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Review calls the supply a custom power supply with a blade connector. The GamersNexus parts table lists an internal 300 W PSU. No standard form factor is named, so proprietary is used.

PSU efficiencyiWhen an 80 PLUS and a Cybenetics level are both published, the 80 PLUS level is stored and the Cybenetics level goes in the source note.

Not available

Not available

Modular cables

Not available

Not available

PSU model

Not available

Not available

ATX version

Not available

Not available

Native 12V-2x6 cableiThe supplied PSU has a native 12V-2x6 GPU cable. A generic 16-pin connector description alone does not establish its revision.

Not available

Not available

Ports

6 of 9 differ

User-facing I/O positioniLocation of the accessible front, top, side or bottom port panel.

Not available

Front1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

User-facing portsiAccessible front, top, side and bottom ports at the stated I/O position. Counts refer to physical connectors.

ANVIDIA DGX Spark

Not available

BValve Steam Machine (2026)

Type	Version	Count
USB-A	USB 3.2 Gen 1	2
microSD card	Not available	1

Source1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026I/O tech specs explicitly states two front USB-A 3.2 Gen 1 ports. Both models also have a high-speed microSD slot. Exact final review and repair guides show the card slot on the front. The review prose sometimes calls these USB 3.0, and Tom's Hardware prose calls them Gen 2, but the maker and that review's own specification table agree on Gen 1. No link rate is inferred from the version name.4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026

Rear portsiPhysical rear connectors, including motherboard and discrete-GPU outputs. Source notes identify disabled onboard video ports and any incomplete GPU output evidence. A video input, such as HDMI in on an all-in-one, is Other. AC power input is a mains inlet, such as C14, for a built-in power supply. DC in is for an external adapter.

ANVIDIA DGX Spark

Type	Version	Count	Max stated link rate (Gbps)	Power out (W)	DP Alt Mode	Connected to
USB-C	USB 20Gbps	3	20	15	Yes	Motherboard
DC in	USB Type-C power input (USB PD), 240 W adapter	1	Not available	Not available	Not available	Not available
HDMI	2.1a	1	Not available	Not available	Not available	Motherboard
Ethernet (RJ45)	10GbE	1	10	Not available	Not available	Motherboard
Other	QSFP56 (NVIDIA ConnectX-7)	2	200	Not available	Not available	Motherboard

Source2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Rear Panel: power button, 4x USB Type-C (one for power delivery), 1x HDMI 2.1a, 1x RJ-45 (10 GbE) and 2x QSFP (ConnectX-7). The power-delivery USB-C is stored as the power input and the other three as data ports. QSFP is stored as other. 200 Gbps is the maker NIC rating. ServeTheHome measured about 96 Gbps of combined traffic because the NIC uses a PCIe Gen5 x4 link.7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 1: USB Type-C power input, then three USB 3 20Gbps Type-C ports with DisplayPort alt mode, HDMI, Realtek 10GbE and two ConnectX-7 QSFP56 ports.12Owner's manualdocs.nvidia.com/dgx/dgx-spark/compliance.htmlRead 10 October 2026USB-C Ports Rating: each USB-C port can be loaded at 5V/3A, so 15 W per port. The total output power of the USB-C ports is limited to 30 W. Stored on the three data ports.

BValve Steam Machine (2026)

Type	Version	Count	Max stated link rate (Gbps)	Connected to
USB-A	USB 2.0 High Speed	2	Not available	Not available
USB-C	USB 3.2 Gen 2	1	10	Not available
DisplayPort	1.4	1	Not available	Graphics card
HDMI	2.0	1	Not available	Graphics card
Ethernet (RJ45)	Not available	1	1	Not available
AC power input	Not available	1	Not available	Not available

Source1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026One DisplayPort 1.4, one HDMI 2.0, two USB-A 2.0 High Speed, one USB-C 3.2 Gen 2, one Gigabit Ethernet and one AC power input. PC Gamer confirms Type-C data rate 10 Gbps and final photographs confirm physical counts. Display outputs serve the discrete AMD GPU. Maker advertises DP up to 4K 240 Hz or 8K 60 Hz and HDMI up to 4K 120 Hz, with HDR and FreeSync. HDMI also supports CEC and DP supports daisy-chaining. These are output claims, not measured rendering frame rates. Chroma and DSC conditions are not specified, so no unsupported display mode table is added.4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026

User-facing USB portsiPhysical USB-A and USB-C connectors on the accessible front, top, side or bottom panel.

Not available

2=CalculatedFrom User-facing ports

User-facing USB-C portsiPhysical USB-C connectors on the accessible front, top, side or bottom panel, including Thunderbolt and USB4 sockets.

Not available

0=CalculatedFrom User-facing ports

Rear USB ports

3=CalculatedFrom Rear ports

3=CalculatedFrom Rear ports

ThunderboltiThunderbolt documented in the rear-port table. Front-panel-only Thunderbolt is not covered by this derived field.

Not available

Not available

Ethernet speed

10Gbps=CalculatedFrom Rear ports

1Gbps=CalculatedFrom Rear ports

Discrete GPU output portsiCounts rear connectors explicitly attributed to the discrete graphics card. A partial rear-port table cannot establish the card's complete output count.

Not available

Not available

Wireless

5 of 6 differ

Wi-Fi

Wi-Fi 71Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026Wi-Fi 7 and Bluetooth 5.4 are listed. Supported bands are not stated, so none are stored.

Wi-Fi 6E1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Wi-Fi bandsiBands explicitly supported by the installed radio and product region. Do not infer 6GHz use solely from a Wi-Fi version.

2.4 GHz, 5 GHz, 6 GHz12Owner's manualdocs.nvidia.com/dgx/dgx-spark/compliance.htmlRead 10 October 2026The EU and UK radio tables list 2400.0-2483.5 MHz, 5150-5350, 5470-5725 and 5725-5875 MHz, and 5925-6425 MHz (LPI and VLP modes). The 5150-5350 MHz and 5925-6425 MHz LPI bands are indoor use only.

Not available

Wi-Fi module

MediaTek MT7925B14L12Owner's manualdocs.nvidia.com/dgx/dgx-spark/compliance.htmlRead 10 October 2026DGX Spark (Model: P4242) lists Contains FCC ID: RAS-MT7925B14L and Contains IC: 7542A-MT7925B14L, so the radio module is the MediaTek MT7925B14L. The same page and the hardware page give Wi-Fi 7.

Not available

Wi-Fi antenna

Internal7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Tom's Hardware places the wireless antennas under the removable bottom foot, so they are internal.8Reviewtomshardware.com/pc-components/gpus/nvidia-dgx-spark-reviewRead 10 October 2026Wireless antennas sit under the removable bottom foot. No external antenna is supplied.

Internal4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026Final hardware review and OEM repair guides document antennas inside the chassis. No external user-installed Wi-Fi antenna is included. Wi-Fi bands and radio module model are not inferred from Wi-Fi 6E alone.5Owner's manualifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/225338Read 8 October 2026Steps 15-22 show MAIN ANT and AUX ANT inside the fan assembly, with internal cables. Dedicated Bluetooth antenna is separate from the Wi-Fi main/aux antennas.

Bluetooth

5.41Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026

5.31Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Maker and PC Gamer review body state Bluetooth 5.3 with dedicated antenna. PC Gamer summary table's Bluetooth 5.2 entry conflicts with its own text and is excluded. Built-in 2.4 GHz Steam Controller radio does not mean a controller is supplied.

Ethernet controller

Realtek 10GbE7Reviewservethehome.com/nvidia-dgx-spark-review-the-gb10-machine-is-so-freaking-coolRead 10 October 2026Page 1 describes the 10GbE port as Realtek-based. The controller model is not stated.

Not available

Camera and audio

None of 5 known

WebcamiPublished built-in camera description and resolution. Keep sensor megapixels, video resolution and named camera features distinct in the source note. External bundled cameras do not qualify.

Not available

Not available

Built-in speaker driversiPhysical built-in acoustic drivers, including separate tweeters and woofers. Audio channels, system beepers and external bundled speakers do not count. Do not infer driver count from speaker assemblies.

Not available

Not available

Total speaker poweriManufacturer stated combined output of the built-in speakers. Preserve power basis in source notes. PSU ratings and external speaker output do not qualify.

Not available

Not available

MicrophonesiPhysical built-in microphones. Beamforming channels and microphone modes do not count.

Not available

Not available

Audio featuresiPublished built-in audio capabilities and their required software or accessories. Do not infer hardware from an audio brand name.

Not available

Not available

Lighting

2 of 4 differ

RGB lighting

Not available

Yes1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Lit parts

Not available

Case strip1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Published 17 individually addressable RGB LEDs form one status strip, with configurable colors and animations. LED count is not a count of independent physical lighting zones. No 5 V ARGB connector standard is inferred.

Lighting standardiNamed physical RGB control or connector standard. ARGB lighting alone does not prove a 5V header or a standard connector.

Not available

Not available

Lighting software

Not available

Not available

Software

2 of 3 differ

Operating system

NVIDIA DGX OS1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026

SteamOS 3 (Arch-based Linux, KDE Plasma desktop)1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026Software tech specs states SteamOS 3, Arch-based, with KDE Plasma desktop. Current firmware subversion and optional Windows installations are not part of the shipped OS reference.

OS family

Linux1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026

Linux1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Control software

DGX Dashboard14Owner's manualdocs.nvidia.com/dgx/dgx-spark/dgx-dashboard.htmlRead 10 October 2026DGX Dashboard is a built-in dashboard with system operating metrics. It also installs updates, adjusts some settings and opens a local JupyterLab.

Not available

Upgradeability

2 of 4 differ

Proprietary partsiParts or interfaces the maker or teardown identifies as requiring nonstandard replacements. Do not infer from a brand label alone.

Not available

Motherboard, PSU, Case, CPU cooler8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Review directly calls motherboard, CPU cooler and case proprietary. OEM power-supply repair manual separately shows custom metal-prong board connection and chassis-specific supply. These claims do not imply proprietary DDR5 SO-DIMMs or NVMe SSDs. Unverified proprietary fan/header standards are omitted.9Owner's manualifixit.com/Guide/Steam+Machine+(2026)+Power+Supply+Replacement/225339Read 8 October 2026OEM Guide disassembly and board/supply separation steps show the motherboard joining the chassis-specific internal power supply through two metal prongs. This proves a proprietary electrical interface, not a PSU dimensional class. PSU form factor remains unavailable. No 80 PLUS or Cybenetics efficiency level is asserted.

Max graphics card length

Not available

Not available

Max CPU cooler height

Not available

Not available

Warranty kept after upgradeiWhether the maker keeps the warranty after a user upgrade under the stated terms and market. Damage exclusions alone do not mean all warranty is void.

Not available

Yes10Maker product pagehelp.steampowered.com/en/faqs/view/4E41-6123-79EF-25BARead 8 October 2026Exclusion 3.0(1) denies coverage when an unauthorized modification or repair caused the issue or damage being claimed. An unrelated user upgrade does not automatically void all warranty. Upgrade-caused damage is excluded under US limited-warranty terms.

Measured performance

1 of 8 differ

Cinebench 2024 single-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Cinebench 2024 multi-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Geekbench single-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

Geekbench multi-coreiMeasured by a reviewer, not claimed by the maker

Not available

Not available

3DMark Time Spy graphicsiMeasured by a reviewer, not claimed by the maker

Not available

Not available

3DMark Steel NomadiMeasured by a reviewer, not claimed by the maker

Not available

Not available

SSD sequential read (measured)iReviewer's sequential read test. A file-copy rate or maker's SSD rating is not a sequential read measurement. Test method belongs in the source note.

Not available

Not available

Game frame ratesiReviewer measurements for this CPU, GPU, memory, storage and cooling configuration. Resolution, preset, ray tracing, upscaling and frame generation conditions belong in rows or source notes.

ANVIDIA DGX Spark

Not available

BValve Steam Machine (2026)

Game	Width (px)	Height (px)	Preset	Upscaling	Ray tracing	Average FPS	1 % low FPS
Resident Evil 4 (2023)	1920	1080	Prioritize Graphics	Not available	Not available	94	Not available
Black Myth: Wukong	1920	1080	High	Not available	Not available	43.9	Not available
Starfield	1920	1080	Ultra	Not available	Not available	41	25
The Elder Scrolls IV: Oblivion Remastered	1920	1080	Ultra Raster, Low SoftwareRT	Off	Not available	27	Not available
Kingdom Come: Deliverance II	1920	1080	Ultra	Not available	Not available	50	Not available
Dragon's Dogma 2	1920	1080	Max	Not available	Not available	52	Not available
Final Fantasy XIV: Dawntrail benchmark	1920	1080	Maximum	Not available	Not available	86	Not available
The Outer Worlds 2	1920	1080	Very High, SoftwareRT	Not available	Not available	26	Not available
Cyberpunk 2077: Phantom Liberty	1920	1080	Ultra	Not available	Not available	59	Not available
Cyberpunk 2077: Phantom Liberty	1920	1080	RT Medium	Not available	Yes	22.8	Not available
Black Myth: Wukong	1920	1080	High raster, Medium RT	FSR Quality	Yes	16.7	Not available
Avatar: Frontiers of Pandora	2560	1440	Ultra	Not available	Not available	21	17
Baldur's Gate 3	2560	1440	Ultra	Not available	Not available	46	26
Metro Exodus Enhanced Edition	2560	1440	Ultra	Not available	Not available	45	30
Cyberpunk 2077	2560	1440	RT Medium	Not available	Yes	16	12
Cyberpunk 2077	2560	1440	RT Medium	FSR Quality	Yes	28	20
Black Myth: Wukong	2560	1440	Very High	Not available	Not available	20	16
Black Myth: Wukong	2560	1440	Very High	Quality upscaling	Not available	31	26

Source4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026PC Gamer tested the 2 TB Steam Controller bundle. Valve and Tom's Hardware state that the 512 GB and 2 TB models are identical apart from storage, so CPU, GPU, memory and cooling match. The 1440p rows come from PC Gamer's gaming benchmark suite and the Steam Machine is the first entry of each chart. Cyberpunk 2077 uses RT Medium and the review text names FSR Quality with no frame generation for the upscaled run. The review does not name the upscaler for Black Myth: Wukong. Other rows do not state upscaling.8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026GamersNexus tested the 512 GB model on SteamOS with MangoHud, out of the box. Resolution and settings come from the chart titles. Every row is average FPS. The 1 percent low is stored only where the text states it. Starfield 1% low is 25 FPS (0.1% low 18). Cyberpunk 2077 RT Medium is 22.8 FPS after Valve's last-minute ray tracing patch (20.7 before). Black Myth: Wukong 1080p High raster with Medium RT and FSR Quality is 16.7 FPS after the patch (13.8 before). The Oblivion Remastered text says no upscaling. Other rows do not state upscaling. Rows with SoftwareRT in the preset use software ray tracing and have no ray_tracing flag.

Measured noise and temperature

5 of 6 differ

Fan noise per loadiMeasured by a reviewer, not claimed by the maker

ANVIDIA DGX Spark

Not available

BValve Steam Machine (2026)

Profile	Load	Distance (cm)	Noise (dB(A))
Stock solid front panel, auto fan curve, about 1252 RPM	Max load	100	23.5

Source8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Hemi-anechoic chamber at 1 m, stock solid front panel, feet installed, auto fan about 1252 RPM. The 30-minute burn-in held 23 to 24 dBA and the 1 m figure is stated as 23.5 dBA in the thermal section. Chart titles name the thermal and acoustic runs thermal torture and under load. The Black Myth: Wukong gaming run is stated only as about 20 to 21 dBA, so it is not stored as a row. Idle is stated as the room noise floor with no dBA value.

Highest measured fan noiseiHighest measured row in fan_noise_measured, not a theoretical maximum. Compare only at the same distance and test conditions.

Not available

23.5dB(A)=CalculatedFrom Fan noise per load

Measured fan noise at idleiHighest documented idle row in fan_noise_measured. Distance and ambient noise floor belong in the source note.

Not available

Not available

CPU temperature in stress testiCPU temperature measured during the named sustained load. Source notes distinguish gaming loops from synthetic CPU or combined stress tests.

Not available

70°C8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Default Tctl is 50 degrees over ambient, about 70 degrees with ambient, in the thermal torture run (stock panel, auto fan about 1252 RPM). The review gives the absolute value as approximate.

CPU clock in stress testiSustained all-core CPU clock under the stated test. A P-core-only average is not a whole-CPU all-core clock.

Not available

3.467GHz8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Average all-core clock under the same thermal torture run with the stock panel at 1252 RPM is 3467 MHz (highest core 4001 MHz). GamersNexus notes this is after the clock drop from the TDP limiter. The review logged 12 logical processors.

GPU temperature while gamingiMeasured by a reviewer, not claimed by the maker

Not available

65°C4Reviewpcgamer.com/hardware/gaming-pcs/steam-machine-review-2026Read 10 October 2026Gaming temperatures table of the 2 TB bundle: average GPU 65 C and maximum GPU 69 C. The average is stored. The review does not name the game loop or the sensor.

Measured power

4 of 6 differ

Power draw idleiMeasured system power at the wall at idle. Certification or maker claims are not reviewer measurements.

35W9Measurementtomshardware.com/pc-components/gpus/nvidia-dgx-spark-review/4Read 10 October 2026Page 4: the Spark idles at about 35 W as a headless system and at about 40 W with a 4K 160 Hz panel connected. The next sentence reports about 160 W at the wall under a GPU-driven load, so the figures are read as system power at the wall, but the idle sentence does not name the meter. The reviewed unit is the 128 GB / 4 TB Founders Edition. ServeTheHome saw 40 to 45 W idle with no stated display setup. Tom's headless condition is used.

13W8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Wall power, full system, 13 W at idle before the Black Myth: Wukong benchmark loop.

Power draw gamingiMeasured system power at the wall during the stated game and settings.

Not available

176W8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Wall power during the looping Black Myth: Wukong benchmark tool. It ramped from 173 W to 176 W in each loop, with dips to about 50 W between loops. The top of that range is stored. The review text also calls it about 170 to 180 W.

Power draw maxiMeasured power at the wall during combined CPU and GPU stress. A PSU rating or game-only load is not this value.

Not available

209W8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Wall power for the full torture test with Blender on the CPU and FurMark on the GPU. Peak 209 W, then 192 W after a couple of minutes when CPU clocks dropped. The 300 W PSU rating is separate.

Power draw sleep or offiMeasured power at the wall with the stated sleep or off mode. These modes must be identified in the source note.

Not available

1W8Reviewgamersnexus.net/pre-built-pc/valve-steam-machine-review-gpu-cpu-benchmarks-steamos-test-thermals-noise-and-priceRead 10 October 2026Review states the machine draws 1 W or less in standby. Published as 1 W or less. The machine stays on to wake from a paired Steam Controller.

Sustained CPU power (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

GPU power while gaming (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Certifications

1 of 5 differ

ENERGY STARiExplicit certification status for the model or defined configuration scope. Absence from a search result is not proof of false.

Not available

Not available

EPEATiPublished registration level. Missing registration evidence is not proof of none.

Not available

Not available

Copilot+ PC

Not available

Not available

Typical annual energy consumption (TEC)iStandardized TEC from the named ENERGY STAR or EU product-information record. It is not a prediction of an individual user's annual energy use.

Not available

Not available

Other certifications

cULus Listed I.T.E. E317539, FCC Part 15 Class B, ISED (Canada), CE (Radio Equipment Directive 2014/53/EU, RoHS 2011/65/EU, ErP 2009/125/EC), UKCA, RCM (Australia and New Zealand), VCCI Class B, BSMI (CNS 13438 Class B), KC (South Korea), CCC and SRRC (China)12Owner's manualdocs.nvidia.com/dgx/dgx-spark/compliance.htmlRead 10 October 2026Regulatory Compliance Information for Model P4242. Marks as listed by NVIDIA: cULus Listed I.T.E. E317539, FCC Part 15 Class B, ISED, CE (RED, RoHS, ErP), UKCA, RCM, VCCI Class B, BSMI, KC, CCC and SRRC. The page lists no ENERGY STAR or EPEAT.

Not available

In the box

1 of 2 differ

In the boxiItems supplied with this exact configuration. Optional accessories and configurator add-ons are not guaranteed included.

Quick start card, 240 W power supply, Power cord4Owner's manualnvidia.com/content/dam/en-zz/Solutions/dgx-spark/DGX-Spark-Quick-Start-Guide.pdfRead 10 October 2026Section 02 Equipment lists Quick Start Card, Power Supply and Power Cord. The guide says to use only the included 240 W adapter.

Not available

Included extrasiExtras confirmed supplied with the exact configuration. Optional bundles are excluded.

Not available

Not available

Warranty

1 of 2 differ

Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

1year13Maker product pagenvidia.com/en-us/support/warranty/dgx-sparkRead 10 October 2026United States: one year from the date of purchase for new products (three months for refurbished). The page says the warranty is only valid in the United States.

1year10Maker product pagehelp.steampowered.com/en/faqs/view/4E41-6123-79EF-25BARead 8 October 2026General Valve Hardware Limited Warranty covers Valve hardware products without limitation and gives one year from shipment for the US reference. It explicitly does not apply to EU, UK, Quebec, Australia or New Zealand consumers, who receive local statutory guarantees instead. One year is not a global statutory-warranty claim.

Warranty service

Not available

Mail-in10Maker product pagehelp.steampowered.com/en/faqs/view/4E41-6123-79EF-25BARead 8 October 2026Section 2.0 provides US return shipping address, prepaid label and RMA after authorization, with hardware shipped to a designated service centre. Mail-in is the US reference service. Other markets use the retail return point or Valve's instructions.

Links

Not compared

Product page

www.nvidia.com/en-us/products/workstations/dgx-spark1Maker product pagenvidia.com/en-us/products/workstations/dgx-sparkRead 10 October 2026

store.steampowered.com/hardware/steammachine1Maker product pagestore.steampowered.com/hardware/steammachineRead 8 October 2026

Spec sheet

dam-cdn.nvd.orangelogic.com/AssetLink/es6d60li4v5hybk461p65is6os33c48h.pdf3Maker spec sheet (PDF)dam-cdn.nvd.orangelogic.com/AssetLink/es6d60li4v5hybk461p65is6os33c48h.pdfRead 10 October 2026Official DGX Spark datasheet, document 5651650, Sep26.

Not available

Manual

docs.nvidia.com/dgx/dgx-spark/index.html2Owner's manualdocs.nvidia.com/dgx/dgx-spark/hardware.htmlRead 10 October 2026Official DGX Spark User Guide.

www.ifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/2253385Owner's manualifixit.com/Guide/Steam+Machine+(2026)+RAM+Replacement/225338Read 8 October 2026Manufacturer-partner iFixit guide labelled OEM Guide on the device page. Introduction explicitly documents two DDR5-5600 SO-DIMM sockets. No separate public Valve user-manual PDF or datasheet was found. This is the exact 2026 repair manual, not a Steam Deck or 2013 prototype document.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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Both are also in the API. Back to all desktop PCs.