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Apple Mac Studio (M3 Ultra, 2025) vs NVIDIA DGX Spark

A

Product A: Apple

Mac Studio (M3 Ultra, 2025)

69 of 160 known

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B

Product B: NVIDIA

DGX Spark

58 of 160 known

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Only differences

AApple Mac Studio (M3 Ultra, 2025)

BNVIDIA DGX Spark

General

7 of 9 differ

Series

Mac Studio1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Maker product name is Mac Studio. The maker names no chassis class, so form_factor is left out.

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

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

MU973LL/A, A3389, Mac15,144Spec databaseeverymac.com/systems/apple/mac-studio/specs/mac-studio-m3-ultra-28-core-cpu-60-core-gpu-2025-specs.htmlRead 10 October 2026Identifiers: MU973LL/A, Mac15,14, A3389, EMC 8859.5Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 10 October 2026ENERGY STAR record 4513876: Mac Studio (M3 Ultra), model A3389, additional information MU973, 28 physical cores, 96 GB, one SSD. United States and Canada.6Maker product pagesupport.apple.com/en-us/102231Read 10 October 2026Identify your Mac Studio model: Mac Studio (2025) with M3 Ultra, Model Identifier Mac15,14, part numbers MU973xx/A.

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.

GTIN / EAN

195949056734, 1959490569015Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 10 October 2026UPCs 195949056734 and 195949056901 from the same MU973 record. Which UPC maps to which regional part is not stated.

Not available

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

5 March 20252Press releaseapple.com/newsroom/2025/03/apple-unveils-new-mac-studio-the-most-powerful-mac-everRead 10 October 2026Dated March 5, 2025. Pre-orders open the same day.

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.

Status

Discontinued4Spec databaseeverymac.com/systems/apple/mac-studio/specs/mac-studio-m3-ultra-28-core-cpu-60-core-gpu-2025-specs.htmlRead 10 October 2026Discontinued Date August 25, 2026. Apple's store now sells only the 2026 M5 models. A later price rise of June 25, 2026 is not a launch price.

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

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.

Apple Mac Studio (M5 Ultra, 2026)20Press releaseapple.com/newsroom/2026/08/apple-introduces-new-mac-studio-with-m5-max-and-m5-ultraRead 23 October 2026Apple's August 2026 release compares the Mac Studio with M5 Ultra to the previous-generation Mac Studio with M3 Ultra.21Press articlemacworld.com/article/3220024/apple-announces-the-m5-ultra-mac-studio-with-up-to-512gb-of-ram.htmlRead 23 October 2026Macworld says buyers can now get an M5 Ultra Mac Studio instead of the M3 Ultra model.

Not available

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

$3,9993Press articlearstechnica.com/apple/2025/03/apple-intros-new-mac-studio-models-with-m4-max-and-m3-ultraRead 10 October 2026Launch coverage dated March 2025: the USD 3,999 base M3 Ultra model has 28 CPU cores (20 P and 8 E), 60 GPU cores, 96GB RAM and 1TB storage. US price excluding sales tax. The 256GB option was USD 1,600 extra. Education price is excluded.

$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.

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.

€4,9994Spec databaseeverymac.com/systems/apple/mac-studio/specs/mac-studio-m3-ultra-28-core-cpu-60-core-gpu-2025-specs.htmlRead 10 October 2026Global Original Prices lists EUR 4999 for Germany and France for this base configuration. EveryMac states the amount, not the tax treatment. German prices include VAT.

Not available

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

US3Press articlearstechnica.com/apple/2025/03/apple-intros-new-mac-studio-models-with-m4-max-and-m3-ultraRead 10 October 2026USD launch price for the US.

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.

ColoursiThe maker's own colour names

Silver1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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

Not available

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

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

Not available

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.

Case

4 of 10 differ

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.

Width197Height95Depth197mm(7.8 × 3.7 × 7.8 in)1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Size and Weight: 19.7 cm width and depth and 9.5 cm height, converted to mm.

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.

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

Not available

Not available

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.

3.64kg(8 lb)1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Weight (M3 Ultra) 8.0 pounds (3.64 kg). Footnote says weight varies by configuration and manufacturing process. The M4 Max weight of 2.74 kg is excluded.

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

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.

Aluminium1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Materials section: 100% recycled aluminum in the enclosure and thermal module chassis.

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Side panel

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Front panel

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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.

No8Owner's manualsupport.apple.com/en-us/121980Read 10 October 2026Bottom Cover procedure needs a nylon probe, a Torx Plus 10IP bit and a torque driver to remove screws. The M3 Ultra bottom cover is part 923-12471. Not tool-less.

Not available

Dust filters

Not available

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VESA mount

Not available

Not available

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.

Not available

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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.

Not available

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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.

Not available

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

Not available

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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.

Not available

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Motherboard

3 of 9 differ

Motherboard

Apple service part 661-502057Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Orderable parts item 36: logic board 661-50205 for M3 Ultra, 28-core CPU, 60-core GPU, 96 GB. This is an Apple service part identifier.

Not available

Chipset

Not available

Not available

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

Proprietary7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Apple service assembly sized for this enclosure. Not an ATX class board.

Not available

CPU socket

Not available

Not available

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.

Not available

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

Not available

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

Not available

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

29Owner's manualsupport.apple.com/en-us/121997Read 10 October 2026Removal step names two fan connectors on the logic board.

Not available

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

Not available

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Processor

12 of 16 differ

Processor

Apple M3 Ultra1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Mac Studio (2025) Tech Specs, Apple M3 Ultra column. Reference is the base M3 Ultra: 28-core CPU with 20 performance and 8 efficiency cores, 60-core GPU, 96GB unified memory, 1TB SSD. The 32-core CPU / 80-core GPU option and the M4 Max model are excluded. Apple publishes no core clocks. ENERGY STAR lists 3.6 GHz and EveryMac reports about 4.0 GHz from third-party software, so no clock is stored.

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.

Processor brand

Apple1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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

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

Not available

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

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

AApple Mac Studio (M3 Ultra, 2025)

Core type	Count
Performance	20
Efficiency	8

Source1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

BNVIDIA 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.

CPU cores

28=CalculatedFrom Core configuration

20=CalculatedFrom Core configuration

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

20=CalculatedFrom Core configuration

10=CalculatedFrom Core configuration

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

8=CalculatedFrom Core configuration

10=CalculatedFrom Core configuration

Threads

2819Spec databasehmc-tech.com/desktops/mac-studio-m3-ultra-early-2025Read 10 October 2026Spec page for Mac Studio (M3 Ultra, Early 2025): M3 Ultra (28C60G), 28 cores (20P+8E), 28 Threads. Apple lists the cores and no thread count. The page also lists a 4.05 GHz CPU clock, which is not stored because the ENERGY STAR record lists 3.6 GHz.

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.

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.

Not available

4.004GHz=CalculatedFrom Core configuration

L3 cache

Not available

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.

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.

3nm13Press releaseapple.com/newsroom/2023/10/apple-unveils-m3-m3-pro-and-m3-max-the-most-advanced-chips-for-a-personal-computerRead 10 October 2026M3 family chips are built with 3-nanometer process technology. Ars Technica describes M3 Ultra as two M3 Max chips joined together. Maker process class, not a foundry node name.

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.

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.

Not available

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.

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

Not available

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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.

Not available

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Integrated GPU

Apple M3 Ultra 60-core GPU1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Chip section states a 60-core GPU in the Apple M3 Ultra. No discrete graphics.

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.

Cooling

2 of 6 differ

CPU cooler

Air9Owner's manualsupport.apple.com/en-us/121997Read 10 October 2026Fan assembly 923-12527 mounts on the logic-board thermal module. Air cooling.

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.

CPU cooler model

Not available

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Radiator size

Not available

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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.

AApple Mac Studio (M3 Ultra, 2025)

Fan rotors
2

Source9Owner's manualsupport.apple.com/en-us/121997Read 10 October 2026Fan 923-12527 holds two blower rotors in one frame and is the same part for all 2025 configurations. Tom's Hardware also names dual internal fans.

BNVIDIA DGX Spark

Not available

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

2=CalculatedFrom Case fans

Not available

Graphics

0 of 11 differ

Discrete GPU

No1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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.

GPUiDiscrete graphics chip. Integrated graphics belong in integrated_gpu.

Not available

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GPU brand

Not available

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Graphics card

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VRAM

Not available

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VRAM type

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Not available

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

Not available

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.

Not available

Not available

Graphics card length

Not available

Not available

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

Not available

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GPU power connector

Not available

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Memory

5 of 11 differ

RAM

96GB1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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.

RAM type

LPDDR514Reviewtomshardware.com/desktops/mini-pcs/apple-mac-studio-early-2025-reviewRead 10 October 2026Specification table lists LPDDR5 unified memory for the M3 Ultra unit. The reviewed unit was the 32-core CPU, 80-core GPU, 256GB model. The memory type is a chip fact. No measured results from that unit are used.

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

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

6,400MT/s18Spec databaselowendmac.com/1234/apple-silicon-m3-ultra-chip-specsRead 10 October 2026M3 Ultra chip specs list LPDDR5-6400 (3200 MHz) on a 1024-bit bus with about 819.2 GB/s, which matches the 819GB/s memory bandwidth Apple publishes. Apple does not publish the transfer rate. The chip is the same in the 28-core and 32-core models. The same page lists a 4.05 GHz P-core clock, which is not stored because the ENERGY STAR record lists 3.6 GHz.19Spec databasehmc-tech.com/desktops/mac-studio-m3-ultra-early-2025Read 10 October 2026Memory row for the 96 GB base model: LPDDR5-6400. Agrees with the Low End Mac chip page. Apple does not publish the transfer rate.

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.

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

Not available

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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.

Integrated into chip package7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Logic board is ordered by chip and memory capacity. There are no DIMM slots, and the SSD module 661-50220 is ordered separately as the 1 TB M3 Ultra module.

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.

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

Not available

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RAM slots

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Free RAM slots

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Not available

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.

256GB1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Memory section: 96GB, configurable to 256GB. The 512GB option needs the 32-core CPU and 80-core GPU. EveryMac reports that Apple removed the 256GB option on June 25, 2026. The maker sheet still lists it, so the purchase-time limit of the launch configuration is stored.

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.

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

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Storage

7 of 7 differ

Storage

1TB=CalculatedFrom Installed drives

4TB=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.

AApple Mac Studio (M3 Ultra, 2025)

Capacity (GB)	Type
1,000	SSD, protocol not stated

Source1Maker product pagesupport.apple.com/en-us/122211Read 10 October 20261TB SSD, decimal GB per the page footnote. Larger sizes up to 16TB are configure-to-order. Apple does not publish an interface for its flash module, so the generic ssd type is used.

BNVIDIA 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.

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.

AApple Mac Studio (M3 Ultra, 2025)

Not available

BNVIDIA 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.

M.2 slots

Not available

1=CalculatedFrom Storage slots and bays

Free M.2 slots

Not available

0=CalculatedFrom Storage slots and bays

Free drive bays

Not available

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.

Not available

5=CalculatedFrom Storage slots and bays

Power supply

3 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.

480W1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Maximum continuous power 480W. The ENERGY STAR record lists an internal supply rated 480 W.5Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 10 October 2026internal_power_supply_rated_power_w 480.

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.

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.

Proprietary7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Apple service part. No standard PSU format applies.

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

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

Apple service part 661-508867Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Power supply 661-50886, one part for both chip models.

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

7 of 9 differ

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

Front1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

Not available

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

AApple Mac Studio (M3 Ultra, 2025)

Type	Version	Count	Max stated link rate (Gbps)	Thunderbolt or USB4
USB-C	Thunderbolt 5	2	120	Thunderbolt 5
SD card	SDXC UHS-II	1	Not available	Not available

Source1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026On front (M3 Ultra): two Thunderbolt 5 ports (up to 120 Gb/s) and an SDXC card slot (UHS-II). The M4 Max front USB-C ports are excluded.10Owner's manualsupport.apple.com/guide/mac-studio/take-a-tour-of-mac-studio-apd0fd69f4be/2025/mac/15Read 10 October 2026On Mac Studio with the M3 Ultra chip, the two front USB-C ports are Thunderbolt 5. The SDXC slot supports SD 4.0 cards.

BNVIDIA DGX Spark

Not available

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.

AApple Mac Studio (M3 Ultra, 2025)

Type	Version	Count	Max stated link rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
USB-C	Thunderbolt 5 / USB4	4	120	Thunderbolt 5	Yes
USB-A	USB 3	2	5	Not available	Not available
HDMI	HDMI 2.1	1	Not available	Not available	Not available
Ethernet (RJ45)	10Gb Ethernet	1	10	Not available	Not available
3.5 mm audio	Not available	1	Not available	Not available	Not available

Source1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Four Thunderbolt 5 (USB-C) ports with USB 4 up to 120 Gb/s and DisplayPort 2.1, two USB-A ports up to 5 Gb/s, HDMI 2.1, 10Gb Ethernet and a 3.5 mm headphone jack. The AC power inlet is not stored as a port.

BNVIDIA 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.

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

2=CalculatedFrom User-facing ports

Not available

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

2=CalculatedFrom User-facing ports

Not available

Rear USB ports

6=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.

Yes=CalculatedFrom Rear ports

Not available

Ethernet speed

10Gbps=CalculatedFrom Rear ports

10Gbps=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

4 of 6 differ

Wi-Fi

Wi-Fi 6E1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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 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 GHz15Maker product pagesupport.apple.com/en-us/102285Read 10 October 2026Use Wi-Fi 6E or Wi-Fi 7 networks lists Mac Studio introduced in 2023 or later. It permits the 6 GHz band or only 2.4 GHz and 5 GHz. US page. Availability depends on region.

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.

Wi-Fi module

Not available

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.

Wi-Fi antenna

Internal7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Antenna assemblies 1 to 3 sit inside the housing. No external 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.

Bluetooth

5.31Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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

Ethernet controller

Marvell AQtion AQC11316Reviewhothardware.com/reviews/apple-mac-studio-m4-max-vs-mac-mini-m4-proRead 10 October 2026Page 1 identifies the 10GbE controller as Aquantia, now Marvell, AQtion AQC113. The reviewed unit is the M4 Max model. Apple lists one Ethernet board, 923-12482, for all 2025 configurations.

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.

Camera and audio

3 of 5 differ

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.

11Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Audio section lists a built-in speaker in the singular. The exploded view shows one Speaker.7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Exploded view lists one Speaker, item 34.

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.

017Spec databaseeverymac.com/systems/apple/mac-studio/specs/mac-studio-m3-ultra-28-core-cpu-60-core-gpu-2025-specs.htmlRead 10 October 2026Sound section lists Microphone None and Sound In None, with no built-in microphone in Apple's specs.

Not available

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

3.5 mm headphone jack with support for high-impedance headphones, HDMI port with multichannel audio output1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

Not available

Lighting

None of 4 known

RGB lighting

Not available

Not available

Lit parts

Not available

Not available

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

3 of 3 differ

Operating system

macOS Sequoia 15.3.24Spec databaseeverymac.com/systems/apple/mac-studio/specs/mac-studio-m3-ultra-28-core-cpu-60-core-gpu-2025-specs.htmlRead 10 October 2026Pre-installed macOS 15.3.2 (24D2082). The ENERGY STAR record lists Mac OS version 15.3 as the tested OS. This is the factory OS.

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

OS family

macOS1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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

Control software

Not available

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.

Upgradeability

1 of 4 differ

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

Motherboard, PSU, Case, Fan connectors, Drive mounts7Owner's manualsupport.apple.com/en-us/122125Read 10 October 2026Logic board, power supply and housing are ordered as Apple assemblies. SSD modules are Apple service parts with no M.2 socket. The fan flex cables use locking connectors on the logic board.

Not available

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

Not available

Measured performance

None of 8 known

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.

Not available

Not available

Measured noise and temperature

None of 6 known

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

Not available

Not available

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

Not available

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

Not available

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

Not available

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

Not available

Not available

Measured power

1 of 6 differ

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

Not available

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.

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

Not available

Not available

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

Not available

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

Not available

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

4 of 5 differ

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

Yes1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Environment section states ENERGY STAR certified.5Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 10 October 2026Record is listed as certified.

Not available

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

Gold11Maker spec sheet (PDF)apple.com/environment/pdf/products/desktops/Mac_Studio_PER_March2025.pdfRead 10 October 2026Footnote 6: Mac Studio achieved a Gold rating in the United States and Canada and is listed on the EPEAT Registry. The report covers Mac Studio (M3 Ultra, 1TB SSD) and (M4 Max, 512GB SSD).

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.

26.9kWh5Certification listdata.energystar.gov/resource/rxdj-2c88.jsonRead 10 October 2026tec_of_model_kwh 26.9 for the 96 GB MU973 record. The 512 GB record 4513877 shows 30.6 and is excluded.

Not available

Other certifications

EU RoHS (Directive 2011/65/EU, with applicable exemptions)1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Footnote declares compliance with EU Directive 2011/65/EU and its amendments, including lead exemptions such as high-temperature solder. Manufacturer declaration, not an independent certificate.

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.

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.

Mac Studio, Power cord1Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026Mac Studio and a power cord.

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.

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.

1year12Maker product pageapple.com/legal/warranty/products/embedded-mac-warranty-us.htmlRead 10 October 2026Apple One (1) Year Limited Warranty for Mac, US. AppleCare and statutory rights are separate.

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.

Warranty service

Carry-in, Mail-in12Maker product pageapple.com/legal/warranty/products/embedded-mac-warranty-us.htmlRead 10 October 2026US warranty lists carry-in and mail-in service. Mail-in applies when Apple finds the product eligible.

Not available

Links

Not compared

Product page

support.apple.com/en-us/1222111Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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

Spec sheet

support.apple.com/en-us/1222111Maker product pagesupport.apple.com/en-us/122211Read 10 October 2026

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.

Manual

support.apple.com/guide/mac-studio/take-a-tour-of-mac-studio-apd0fd69f4be/2025/mac/1510Owner's manualsupport.apple.com/guide/mac-studio/take-a-tour-of-mac-studio-apd0fd69f4be/2025/mac/15Read 10 October 2026Mac Studio User Guide, 2025 version, Take a tour page.

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

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.

Not available

Not available

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