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ASRock B850M-X R2.0 vs ASUS ROG STRIX B850-G GAMING WIFI

A

Product A: ASRock

B850M-X R2.0

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B

Product B: ASUS

ROG STRIX B850-G GAMING WIFI

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Only differences

AASRock B850M-X R2.0

BASUS ROG STRIX B850-G GAMING WIFI

General

2 of 9 differ

Series

Not available

ROG Strix2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026ROG Strix is the ASUS line in the product name. The page sits in the ROG Strix motherboard family.

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

B850M-X R2.0, 90-MXBSG0-A0UAYZ1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Cover and chapter 1 name the B850M-X R2.0. The part number 90-MXBSG0-A0UAYZ is on BuildCores, Paradigit and ComputerG. The Wi-Fi board is a separate model, 90-MXBSH0-A0UAYZ.4Retailer pageparadigit.ie/asrock-b850m-x-r2-0/21812982/productRead 15 October 2026Manufacturer part number 90-MXBSG0-A0UAYZ. The page lists 3 M.2 slots in its highlights and 1 in its table, which fits neither the manual nor the maker's text, so it is not used for slots.6Retailer pagecomputerg.shop/it/shop/asrock-b850m-x-r2-0-b850-am5-90-mxbsg0-a0uayz-42489Read 15 October 2026Part number 90-MXBSG0-A0UAYZ.7Spec databasebuildcores.com/products/Motherboard/4aue7wofw/ASRock-B850-M-X-R2.0-DDR5-Micro-ATXRead 15 October 2026Retailer part number 90-MXBSG0-A0UAYZ. The page also shows a UPC 4711581490765 that other shops attach to the Wi-Fi board, so it is not stored. Its Wi-Fi 6E row also belongs to the Wi-Fi board.

ROG STRIX B850-G GAMING WIFI, 90MB1M30-M0AAY0, 90MB1M30-M0EAY04Maker product pagerog.asus.com/us/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/wtbRead 14 October 2026The ASUS where-to-buy page lists the order codes 90MB1M30-M0AAY0 and 90MB1M30-M0EAY0 among the board's regional codes. 90MB1M30-M0EAY0 is also the code at Scan UK, Comfeel and Arvutitark. The ASUS store price on that page is $259.99. It is a current price and not stored as a launch price.10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026Mfr Part Number: ROG STRIX B850-G GAMING WIFI.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK lists model number 90MB1M30-M0EAY0.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Supplier code 90MB1M30-M0EAY0.

GTIN / EAN

47115814907582Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Shop feed barcode 4711581490758 for SKU B850M-X R2.0. The Wi-Fi board has 4711581490765.5Retailer pageox.ee/en/product/3162912Read 15 October 2026EAN 4711581490758. The Computer Orbit feed and the ComputerG listing show the same number.6Retailer pagecomputerg.shop/it/shop/asrock-b850m-x-r2-0-b850-am5-90-mxbsg0-a0uayz-42489Read 15 October 2026Barcode 4711581490758.

199291092266, 471163609226510Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026The Amazon US listing for ASIN B0FH7MB8WV gives UPC 199291092266.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK lists GTIN 4711636092265.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Comfeel lists EAN 4711636092265.

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

Not available

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Status

Available2Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Listed as available on 2026-10-15.

Available10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026The listing is on sale on 2026-10-14 at best sellers rank 14 in Computer Motherboards.11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026In stock on 2026-10-14.

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.

Not available

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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.

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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

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

Not available

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ColoursiThe maker's own colour names

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SegmentiThe maker's own product category, e.g. ASUS ProArt is Creator. It is not assigned from price or features. Maker lines that are not gaming, creator or workstation lines, such as ASUS PRIME, MSI PRO and ASRock Pro, are mainstream.

Mainstream2Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026ASRock text: a high-value X-Series board for everything from professional productivity to everyday use. It is not in the Phantom Gaming, Steel Legend or Taichi lines.

Gaming2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The page sits under ROG gaming motherboards (breadcrumb Gaming Motherboards).

Board revisioniThe maker's revision name, e.g. rev. 1.1, for variant rows of revisions that keep the board's name and model number. Leave it out when the maker names no revision.

Not available

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Platform

0 of 4 differ

CPU socketiSocket name without spaces, e.g. AM5 or LGA1851.

AM51Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026

AM51Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

ChipsetiChipset with its brand and without the word chipset, e.g. AMD B850, AMD X870E or Intel Z890. Same form as desktop PCs and as compatible chipsets on CPUs.

AMD B8501Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026

AMD B8501Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

Supported processorsiProcessor series the maker lists for the board, one item per series in the chip maker's name. BIOS updates can add series later.

AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: AMD Socket AM5 Ryzen 9000, 8000 and 7000 Series Processors. Slot availability depends on the CPU. Read on 2026-10-15.

AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026AM5 for Ryzen 9000, 8000 and 7000 Series. The page refers to the ASUS download center for the CPU support list. Read on 2026-10-14.

CPU overclockingiThe board allows multiplier overclocking of an unlocked CPU. Memory overclocking alone does not count.

Yes9Maker product pageamd.com/en/products/processors/chipsets/am5.htmlRead 15 October 2026AMD's chipset page describes the B850 platform with enhanced overclocking capabilities. The page timed out when opened, so the text was read in a search result. This is the chip maker's page, not the board maker's. The ASRock manual carries an overclocking warning and names Untied Overclocking Technology.

Yes2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The page describes robust overclocking capabilities for AMD Ryzen 9000, 8000 and 7000 Series with AMD EXPO and PBO enhancement. AMD also describes the B850 platform with enhanced overclocking capabilities.9Maker product pageamd.com/en/products/processors/chipsets/am5.htmlRead 14 October 2026AMD describes the B850 platform with enhanced overclocking capabilities. This is the chip maker's page and not the board maker's.

Board

3 of 5 differ

Form factoriThe maker's stated board standard. Other covers sizes such as XL-ATX or Mini-DTX.

Micro-ATX1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: Micro ATX Form Factor.

Micro-ATX1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026micro-ATX form factor.

Board dimensionsiSize of the board itself. Height runs along the rear I/O edge, as the board stands in a tower case. ATX is 244 mm wide and 305 mm high. Micro ATX is 244 mm high and up to 244 mm wide. A size with a cover that reaches past the board, as NZXT prints, is not used when the maker also states the board size.

Width226Height244mm(8.9 × 9.6 in)2Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Shop copy of ASRock's spec: Micro ATX Form Factor 9.6-in x 8.9-in, 24.4 cm x 22.6 cm. The 244 mm side runs along the rear I/O edge, as the field help says for Micro ATX, so it is stored as the height. The shorter 226 mm side is the width.3Retailer pageavadirect.com/B850M-X-R2-0-AMD-B850-Chipset-AM5-microATX-Motherboard/Product/19612206Read 15 October 2026Spec text: Micro ATX Form Factor 9.6-in x 8.9-in, 24.4 cm x 22.6 cm.4Retailer pageparadigit.ie/asrock-b850m-x-r2-0/21812982/productRead 15 October 2026Width 244 mm and depth 226 mm in the spec table. The shop calls the longer side the width. It runs along the rear I/O edge.6Retailer pagecomputerg.shop/it/shop/asrock-b850m-x-r2-0-b850-am5-90-mxbsg0-a0uayz-42489Read 15 October 2026Width 244 mm and depth 226 mm. The shop calls the longer side the width.8Press articlegdm.or.jp/crew/2025/0404/581769Read 15 October 2026Micro-ATX (244 x 226 mm), for the Wi-Fi board.

Width244Height244mm(9.6 × 9.6 in)1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20269.6 inch x 9.6 inch (24.4 cm x 24.4 cm).3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026micro-ATX form factor, 9.6 inch x 9.6 inch (24.4 cm x 24.4 cm).

PCB layersiCopper layers in the circuit board as published.

62Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Shop copy of ASRock's text: the 6 Layer PCB provides stable signal traces and power shapes.4Retailer pageparadigit.ie/asrock-b850m-x-r2-0/21812982/productRead 15 October 2026Text: the 6 Layer PCB provides stable signal traces and power shapes.

82Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Overview: eight-layer PCB.6Reviewstreberi.rs/asus-rog-strix-b850-g-recenzija-najjaca-matx-ploca-za-am5Read 14 October 2026The review says the board has 8 PCB layers.

Back-connect designiPower, fan and front-panel connectors sit on the back of the board to hide the cables, e.g. ASUS BTF, MSI Project Zero or GIGABYTE Stealth. It needs a case made for it.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026The layout in section 1.3 shows the usual front-side power, fan and USB connectors. It is not a back-connect board.

No3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout in chapter 1 shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.

RGB lighting on the boardiLEDs on the board itself. Headers for external lighting are counted under Internal connectors. True only when the maker's spec or feature list names lighting on the board. A single small LED that a reviewer sees does not count.

No2Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026The text names only onboard RGB and addressable RGB headers for external devices. It names no lighting on the board.7Spec databasebuildcores.com/products/Motherboard/4aue7wofw/ASRock-B850-M-X-R2.0-DDR5-Micro-ATXRead 15 October 2026Lighting: None. The headers are for external devices.

Yes2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The page describes a white PCB with a hint of RGB on the I/O edge and ASUS Aura lighting.

Power delivery

5 of 6 differ

Power stage layoutiAs the maker publishes it, e.g. 18+2+2. The first number is the CPU core (Vcore) rail. Makers group the other rails differently, so compare the first number. Doubled or teamed stages are written as the maker prints them, such as MSI's 12+2+1 Duet Rail. A review's count of real phases goes in the source note.

6+1+12Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Shop copy of ASRock's product page: 6+1+1 Phase Power Design, Dr.MOS for VCore. The page gives no current rating and no controller.3Retailer pageavadirect.com/B850M-X-R2-0-AMD-B850-Chipset-AM5-microATX-Motherboard/Product/19612206Read 15 October 2026Spec text: 6+1+1 Phase Power Design, Dr.MOS for VCore.8Press articlegdm.or.jp/crew/2025/0404/581769Read 15 October 20266+1+1 phases, Dr.MOS for VCore, for the Wi-Fi board.

14+2+12Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 202614(80A)+2(80A)+1(80A) power stages: 14 Vcore, 2 SoC and 1 MISC. Stored as 14+2+1.

CPU core (Vcore) power stagesiPower stages on the Vcore rail. Makers call them phases or power stages. A doubled design has more stages than controller phases. Use the first number of the maker's layout, such as 14 for MSI's 14+2+1 Duet Rail. A review's different count goes in the source note.

62Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026The first number of 6+1+1 is the Vcore rail, built with Dr.MOS power stages.

142Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026The VRM features 14+2+1 power stages.

Vcore power stage ratingiCurrent rating of each Vcore power stage. Only a figure the maker or a copy of the maker's text states. A review's reading of the chip markings is not enough.

Not available

80A2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Each of the 14 Vcore stages is rated 80 A. The SoC and MISC stages are also 80 A.

VRM controlleriPWM controller chip with maker, e.g. MPS MP2857. One name: the maker's when published, otherwise the one name a review uses. No parentheses. Other names go in the source note. Use the part number without the date code in the chip marking.

Not available

ASUS ASP23085Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026A digital EPU DIGI+ controller, model ASP2308AGQ, drives 17 Vishay SiC629 80 A MOSFETs. ASUS does not name the controller. Single review. Stored as ASUS ASP2308, the same form as the ASUS TUF GAMING B850-PLUS WIFI product.

CPU power connectorsiEPS 12 V connectors for the CPU as pin counts, e.g. 8+8 pin, 8+4 pin or 8 pin.

8 pin1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 connector list: 1 x 8 pin 12V power connector (Hi-Density Power Connector), next to the 24 pin ATX connector.

8+8 pin1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Internal connectors, power related: 1 x 24-pin main power and 2 x 8-pin +12V CPU power.

Extra slot power connectoriA PCIe or other power connector on the board that feeds the expansion slots. The 24-pin and CPU connectors do not count. A connector the maker ties only to a front USB-C header does not count.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026The connector list has no extra slot power connector. The manual never states that one is absent.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026The power related connector list is complete and has no extra slot power connector. The page never states that one is absent.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Power connectors section: ATX_PWR, CPU_12V_1 and CPU_12V_2 only.

Memory

3 of 6 differ

Memory type

DDR51Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: Dual Channel DDR5.

DDR51Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

Memory slotsiDIMM slots on the board.

21Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 2 x DDR5 DIMM slots (DDR5_A1 and DDR5_B1).

41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

Max memoryiMaximum total capacity the maker states for the board. The maker's product page wins over an older manual, since a BIOS update can raise the value.

128GB1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: max. capacity of system memory 128GB.

256GB1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20264 x DIMM slots, max. 256GB, DDR5.

Max memory speed (overclocked)iHighest overclocked speed the maker lists for one module per channel, with the newest CPU family the board is sold for, e.g. Ryzen 9000 or Core Ultra 200S. Ryzen 8000 values are never used. The source note names the family and the other module setups. It is not the CPU's official speed. A JEDEC-only list such as 5600/4800 is not this value. When the maker lists a manual overclock and a memory profile speed, the higher one is stored. The maker's product page wins over an older manual, since a BIOS update can raise the value. A table that names the CPU family wins over a headline speed that names none.

8,200MT/s1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: DDR5 ECC/non-ECC un-buffered memory up to 8200+(OC). The manual names no CPU family or module setup. It refers to the Memory Support List on the maker's website.

8,000MT/s1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports up to 8000+MT/s (OC) with Ryzen 9000, 8000 and 7000 Series processors. The Ryzen 9000 value is stored. The page gives no table for other module setups.

ECC memoryiThe board runs unbuffered ECC modules with ECC active. A board that runs ECC modules in non-ECC mode does not count. DDR5 on-die ECC does not count. A maker list of ECC and non-ECC unbuffered memory with no non-ECC mode qualifier counts as true, as on ASUS and ASRock AM5 boards. A note that ECC mode depends on the CPU, as ASUS writes for AM4 boards, still counts as true.

Yes1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: supports DDR5 ECC/non-ECC un-buffered memory. The manual does not say whether ECC is active with each CPU. BuildCores also lists ECC support as yes.7Spec databasebuildcores.com/products/Motherboard/4aue7wofw/ASRock-B850-M-X-R2.0-DDR5-Micro-ATXRead 15 October 2026ECC Support: Yes.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026The page says ECC and Non-ECC Un-buffered DIMM. The footnote says non-ECC DDR5 supports on-die ECC. The page does not say how ECC works with each CPU. ASUS BIOS 1681 release notes say it optimizes ECC-UDIMM memory performance.

CUDIMM supportiThe board runs clocked unbuffered DIMMs (CUDIMM) with the clock driver active. Clock driver bypass mode only does not count. A plain "Supports CUDIMM" with no bypass limit, as ASRock and ASUS write it, counts as true.

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Expansion slots

2 of 3 differ

Expansion slotsiPhysical card slots. Storage M.2 slots are listed under Storage. The M.2 slot of a pre-installed Wi-Fi module is not listed. A full-length slot wired for x4 is PCIe x16 with 4 lanes.

AASRock B850M-X R2.0

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1
PCIe x16	4	4	Chipset	1
PCIe x1	1	4	Chipset	1

Source1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 and 1.5: PCIE1 is PCIe 5.0 x16 from the CPU (Gen5 x16 with Ryzen 9000 and 7000, Gen4 x8 with Ryzen 8000 Phoenix 1, Gen4 x4 with Phoenix 2). From the chipset: PCIE2 PCIe 4.0 x1 and PCIE3 a PCIe 4.0 x16 slot that runs at x4. The M.2 Key E socket for a Wi-Fi module is not listed. The board has no Wi-Fi module installed.

BASUS ROG STRIX B850-G GAMING WIFI

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Ryzen 9000 and 7000: 1 x PCIe 5.0 x16 slot. Ryzen 8000: the same slot runs PCIe 4.0 at x8 or x4. The board has no other expansion slot. Stored with Ryzen 9000.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout shows PCIEX16(G5) as the only expansion slot.

Full-length PCIe slotsiCounts full-length slots, whatever their lane count.

2=CalculatedFrom Expansion slots

1=CalculatedFrom Expansion slots

Fastest PCIe x16 slot generationiHighest PCIe generation of a full-length slot. This is normally the graphics card slot.

5=CalculatedFrom Expansion slots

5=CalculatedFrom Expansion slots

Storage

3 of 4 differ

M.2 storage slotsiOne row per M key storage slot on the board, front or back. Slots on an included add-in card are not listed. Values are with the CPU family that gives the board its full connectivity. A slot listed for 25110 counts as M.2 22110. A slot listed for 2260 counts as M.2 2280.

AASRock B850M-X R2.0

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M2_1	5	4	CPU	M.2 2280	No	Yes
M2_2	4	4	CPU	M.2 2280	No	No

Source1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: M2_1 is the Blazing M.2 socket (Key M) for type 2280, PCIe Gen5x4 from the CPU. It runs Gen5x4 with Ryzen 9000 and 7000 and Gen4x4 with Ryzen 8000. M2_2 is the Hyper M.2 socket (Key M) for type 2260 and 2280, PCIe Gen4x4 from the CPU. It runs Gen4x2 with Ryzen 8000 Phoenix 2. 2280 is stored for M2_2. The manual lists both slots with PCIe modes only, so sata is false. The install guides in sections 2.17 and 2.18 show a heatsink to remove on M2_1 and none on M2_2. The manual lists no lane sharing between slots.

BASUS ROG STRIX B850-G GAMING WIFI

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M.2_1	4	4	CPU	M.2 2280	No	Yes
M.2_2	5	4	CPU	M.2 2280	No	Yes
M.2_3	4	4	Chipset	M.2 2280	No	Yes
M.2_4	4	4	Chipset	M.2 2280	No	No

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Total 4 x M.2 (Key M). Ryzen 9000 and 7000: M.2_1 type 2242/2260/2280 PCIe 4.0 x4 and M.2_2 type 2242/2260/2280 PCIe 5.0 x4. Ryzen 8000: M.2_1 runs PCIe 4.0 x4 and M.2_2 runs PCIe 4.0 x4 or x2. B850 chipset: M.2_3 type 2280 PCIe 4.0 x4 and M.2_4 type 2280 PCIe 4.0 x4 on the underside of the board. 2260 is stored as 2280. The page lists no M.2 SATA support, so sata is false for every slot. It lists no lane sharing, so that column is empty.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Overview: 4 x M.2 slots, 1 x 2280 PCIe 5.0 x4 and 3 x 2280 PCIe 4.0 x4. The M.2 heatsink covers three M.2 slots and the page does not name which. The Profesional Review text says the slot on the back of the board has none, so the underside M.2_4 is stored without a heatsink.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary matches the page. The manual lists M.2 types and PCIe modes only. M.2_4 is at the back of the motherboard.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Three of the four M.2 slots have passive aluminum heatsinks with Q-Latch. The fourth slot, on the back of the board, has no heatsink and is held by a screw.

M.2 slots

2=CalculatedFrom M.2 storage slots

4=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

1=CalculatedFrom M.2 storage slots

1=CalculatedFrom M.2 storage slots

SATA portsiSATA 6Gb/s connectors on the board. SlimSAS connectors and M.2 slots that take SATA drives do not count.

41Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 4 x SATA3 6.0 Gb/s connectors from the chipset.

21Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20262 x SATA 6Gb/s ports. AMD RAIDXpert2 is listed.

Rear ports

4 of 5 differ

Rear portsiPhysical connectors on the rear I/O panel. Wi-Fi antenna connectors and buttons are not ports. 3.5 mm audio counts analog jacks of any role. A video input, such as the DisplayPort In of a Thunderbolt board, is Other.

AASRock B850M-X R2.0

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 1	1	5
USB-A	USB 3.2 Gen 1	3	5
USB-A	USB 2.0	2	0.48
HDMI	HDMI 2.1	1	Not available
DisplayPort	DisplayPort 1.4	1	Not available
Ethernet (RJ45)	Not available	1	2.5
3.5 mm audio	Not available	3	Not available

Source1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 and 1.4: 1 HDMI (HDMI 2.1 TMDS/FRL 8G compatible, up to 4K 120Hz), 1 DisplayPort 1.4 with DSC, 1 USB 3.2 Gen1 Type-C (5 Gb/s per the block diagram), 3 USB 3.2 Gen1 Type-A, 2 USB 2.0, 1 RJ-45 2.5G LAN and 3 HD audio jacks (Line in, Front Speaker, Microphone). The 2 antenna mounting points, which hold no antenna on this board, and the BIOS Flashback button are not ports.

BASUS ROG STRIX B850-G GAMING WIFI

Type	Version	Count	Max link rate (Gbps)	Power out (W)
USB-C	USB 3.2 Gen 2x2	1	20	Not available
USB-C	USB 3.2 Gen 2	1	10	15
USB-A	USB 3.2 Gen 2	2	10	Not available
USB-A	USB 3.2 Gen 1	4	5	Not available
USB-A	USB 2.0	2	0.48	Not available
HDMI	HDMI 2.1	1	Not available	Not available
DisplayPort	DisplayPort 1.4	1	Not available	Not available
Ethernet (RJ45)	Not available	1	2.5	Not available
3.5 mm audio	Not available	2	Not available	Not available
Optical S/PDIF	Not available	1	Not available	Not available

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Back panel: 1 USB 20Gbps Type-C, 3 USB 10Gbps (2 Type-A and 1 Type-C), 4 USB 5Gbps Type-A, 2 USB 2.0 Type-A (10 USB ports in total), 1 DisplayPort (max 8K@30Hz as specified in DisplayPort 1.4), 1 HDMI (4K@60Hz as specified in HDMI 2.1), 1 Wi-Fi module, 1 Intel 2.5Gb Ethernet, 2 audio jacks and 1 optical S/PDIF out. ASUS names USB by speed, so 20Gbps is stored as USB 3.2 Gen 2x2, 10Gbps as USB 3.2 Gen 2 and 5Gbps as USB 3.2 Gen 1. The footnote says USB Type-C power delivery output max 5V/3A, which sits on the 10Gbps Type-C port and is stored as 15 W. The overview page says up to 30W PD fast-charge. The spec page and the manual say 5V/3A and are stored. The Wi-Fi module and the two buttons are not ports.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary lists the same rear USB (total 10 ports) and the same footnote: USB Type-C power delivery output max 5V/3A.

Rear USB ports

6=CalculatedFrom Rear ports

10=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

1=CalculatedFrom Rear ports

2=CalculatedFrom Rear ports

Fastest rear USB port

5Gbps=CalculatedFrom Rear ports

20Gbps=CalculatedFrom Rear ports

ThunderboltiThunderbolt on the rear panel. A header for an add-in card does not count.

Not available

Not available

Internal connectors

3 of 5 differ

Internal USB headersiHeaders for front-panel USB ports. The header count may be left out when the maker states only the front ports served.

AASRock B850M-X R2.0

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	5	1	1
USB 3 header (19-pin)	5	1	2
USB 2.0 header (9-pin)	0.48	2	4

Source1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 connector list: 1 front panel Type C USB 3.2 Gen1 header, 1 USB 3.2 Gen1 header for 2 ports and 2 USB 2.0 headers for 4 ports. The manual states no power output for the Type-C header.

BASUS ROG STRIX B850-G GAMING WIFI

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	10	1	1
USB 3 header (19-pin)	5	1	2
USB 2.0 header (9-pin)	0.48	2	4

Source1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Front USB (total 7 ports): 1 x USB 10Gbps connector (1 x USB Type-C), 1 x USB 5Gbps header for 2 ports and 2 x USB 2.0 headers for 4 ports.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Layout contents: 8. USB 10Gbps Type-C front panel connector, 9. USB 5Gbps header, 10. USB 2.0 header (two).

Front USB-C header speed

5Gbps=CalculatedFrom Internal USB headers

10Gbps=CalculatedFrom Internal USB headers

Fan headersiAll fan and pump headers on the board, including CPU, CPU optional, AIO pump and chassis fan headers. Combination connectors that carry fan power together with other lines, such as MSI EZ Conn, do not count. A header that drives several fans, such as GIGABYTE 3_FANS, counts once. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

61Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 2 CPU fan connectors, 3 chassis or water pump fan connectors and 1 AIO pump fan connector, all 4-pin.

61Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20261 CPU fan, 1 CPU OPT fan, 1 AIO pump and 3 chassis fan headers, all 4-pin.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Fan and Pump headers table: CPU_FAN, CPU_OPT, AIO_PUMP and CHA_FAN1 to CHA_FAN3.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Six fan headers: three SYS_FAN, one CPU_FAN, one SYS_FAN/PUMP and one CPU_OPT.

ARGB headersi3-pin 5 V addressable RGB headers. Combination connectors do not count. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

31Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 3 x addressable LED headers (5 V, 3 A in total).

31Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20263 x Addressable RGB Gen 2 headers.

RGB headersi4-pin 12 V RGB headers. Headers on a hub that ships with the board and plugs into it, such as MSI's EZ CONTROL HUB, count. The source note splits board and hub.

11Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 1 x RGB LED header (12 V, 3 A in total).

03Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout lists only 3 x Addressable RGB Gen 2 headers and no 4-pin RGB header.5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Three 5V ARGB Gen2 headers and no RGB header are named.

Networking

6 of 9 differ

Ethernet controllersiOne item per Ethernet chip, as maker plus chip family without suffix letters, e.g. Realtek RTL8126 or Realtek RTL8125. Suffixes and revisions go in the source note. Leave it empty when no maker document or review names the chip. A Killer chip is written with Intel as its maker, such as Intel Killer E3100G.

Realtek RTL81251Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 2.5 Gigabit LAN, Dragon RTL8125BG. The suffix BG is left out.

Intel I2265Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Ethernet is an Intel I226-V 2.5 GbE chip. ASUS writes only Intel 2.5Gb Ethernet. The -V suffix is dropped.

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

2.5Gbps=CalculatedFrom Rear ports

2.5Gbps=CalculatedFrom Rear ports

Wi-Fi includediA Wi-Fi module comes installed. A board sold with and without Wi-Fi is two products.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 lists the wireless module only for the B850M-X WiFi R2.0. Section 2.16 is a guide for adding a Wi-Fi module to the B850M-X R2.0, and the rear panel has antenna mounting points instead of antenna ports. So no module is installed.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026A Wi-Fi module is listed on the back panel (1 x Wi-Fi module).

Wi-Fi standard

Not available

Wi-Fi 71Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 20262x2 Wi-Fi 7 (802.11be).

Wi-Fi bandsiBands the installed module supports.

Not available

2.4 GHz, 5 GHz, 6 GHz1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports 2.4/5/6GHz frequency band. The 6 GHz band and bandwidth vary by country.

Max Wi-Fi channel widthiWidest channel the installed module supports, e.g. 320 or 160. It follows the Wi-Fi module, so a board revision can change it.

Not available

160MHz1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Supports Wi-Fi 7 160MHz bandwidth, up to 2.9Gbps. Profesional Review writes MediaTek MT7927 with 320 MHz channels. The maker figure is stored and the Wi-Fi chip is left out because of this conflict.

Wi-Fi moduleiChip as published. A board revision can change the chip. One name: the maker's when published, otherwise the one name a review uses. No parentheses. Other names go in the source note. Use the chip's part number with its maker when any source gives it, such as Qualcomm QCNCM865 for a module also written NCM865. A platform name such as FastConnect 7800 is used only when no part number is published.

Not available

Not available

BluetoothiVersion of the Bluetooth radio on the Wi-Fi module.

Not available

5.41Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Bluetooth v5.4. The page says the version may vary and refers to the Wi-Fi module maker.

Audio

1 of 2 differ

Audio codeciMaker and model, e.g. Realtek ALC4080. A board revision can change the codec.

Realtek ALC8971Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2: 7.1 CH HD Audio, Realtek ALC897 Audio Codec.

Realtek ALC1220P1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Realtek ALC1220P 7.1 Surround Sound High Definition Audio CODEC with a Savitech SV3H712 amplifier. The Savitech part is an amplifier and is not stored as a DAC.

DAC chipiA separate DAC chip next to the codec, e.g. ESS ES9219. Maker plus part number as the maker writes it, with suffix letters, e.g. ESS ES9219Q. A marketing name that stands for a part number is written as the part number, so ESS SABRE9219 is ESS ES9219 and the maker wording goes in the source note. Leave it empty on boards with only a codec.

Not available

Not available

Features

4 of 7 differ

BIOS flashbackiA button that updates the BIOS from a USB drive without a CPU or memory installed. Maker names include BIOS FlashBack, Flash BIOS Button and Q-Flash Plus.

Yes1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.2 and 2.14: the BIOS Flashback button on the rear panel updates the BIOS without a CPU.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026BIOS FlashBack button on the back panel.

Clear CMOS button (rear)iA button on the rear panel that resets the BIOS settings. A jumper or header does not count. A board whose only clear CMOS button sits on the board itself is false.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026The layout lists a Clear CMOS jumper (CLRCMOS1). The only rear panel button is BIOS Flashback. BuildCores lists Clear CMOS Button: No.7Spec databasebuildcores.com/products/Motherboard/4aue7wofw/ASRock-B850-M-X-R2.0-DDR5-Micro-ATXRead 15 October 2026Clear CMOS Button: No.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Clear CMOS button on the back panel.

POST code displayiA two-digit display that shows boot codes, e.g. ASUS Q-Code or ASRock Dr. Debug. Single status LEDs do not count. Taken from the maker's spec or manual only. A review spec table is not enough.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 2.15: the Post Status Checker is four colour LEDs for CPU, DRAM, VGA and BOOT, not a two-digit display.

No3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The layout contents list Q-LEDs (CPU, DRAM, VGA and boot device), a BIOS FlashBack LED and an 8-pin CPU power plug LED. No two-digit code display is listed in the specification summary or the layout. The overview page HTML holds a Q-CODE text block, but it is commented out and not shown. The manual never states that a code display is absent.

Power button on the boardiA power or start button on the board itself, for use outside a case. A button with another label counts when the maker says it can turn the PC on, such as GIGABYTE's quick button labelled RESET. A button on the rear I/O panel counts. A button on a module that ships fitted to the board, such as MSI's EZ BRIDGE, counts.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 2.14 says the only smart switch is the BIOS Flashback button. The layout lists no power or reset button.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Internal connectors, miscellaneous: 1 x Start button.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Layout item 14: Start button, which powers up the system.

Dual BIOSiTwo BIOS chips, so the board can start from the second chip after a failed update. Two flash chips alone do not count.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026The block diagram shows one flash ROM. Dual BIOS is not stated.

No1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026BIOS: 256 Mb Flash ROM, UEFI AMI BIOS. One flash ROM is stated and no dual BIOS feature is listed. The page never states that dual BIOS is absent.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026The specification summary gives one 256 Mb Flash ROM. The manual never states that dual BIOS is absent.

Pre-installed I/O shieldiThe rear I/O shield is fixed to the board.

No1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.1 package contents lists 1 x I/O Shield as a loose item, and section 2.5 is a guide to installing the I/O panel shield.

Yes1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026ASUS EZ DIY list: Pre-mounted I/O shield.

Tool-free featuresiM.2 latch holds a drive without a screw. M.2 heatsink comes off without a tool. PCIe slot release is a button or lever that frees the graphics card. Push-on antenna connector fits the Wi-Fi antenna without screwing.

Tool-free M.2 latch1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026The install guides for M2_1 and M2_2 use a nut lock that is turned clockwise to lock a 2280 module in place without a screw. The M2_1 heatsink needs a screwdriver and is not tool-free. The manual names no PCIe release button.

Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release, Push-on antenna connector1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026ASUS Q-Design: M.2 Q-Latch, M.2 Q-Release, PCIe Slot Q-Release and Q-Antenna.2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026Q-Release lets the M.2 heatsink come off with a switch and no tiny screws. Q-Latch installs M.2 SSDs with one press. PCIe Slot Q-Release unlocks the card by pressing a button. Q-Antenna snaps the Wi-Fi antenna into place.

Measured

1 of 3 differ

VRM temperature under CPU loadiHighest VRM temperature a reviewer measured during a sustained all-core CPU stress test at stock settings. Compare only results from the same reviewer and CPU. The reviewer's probe reading when given, otherwise the board sensor. The sensor and the CPU package power during the test go in the source note.

Not available

39°C5Reviewprofesionalreview.com/2025/11/26/asus-rog-strix-b850-g-gaming-wifi-reviewRead 14 October 2026Ryzen 5 7500X3D (65 W) at stock without voltage changes, Corsair H150i ELITE LCD cooler, 32 GB DDR5-6000, RTX 4080, BIOS 1087. The review says it ran a CPU stress test at stock and read surface temperatures with a thermal camera and sensors with HWiNFO. The stress tool, duration and ambient temperature are not stated. Full stock VRM sensor 39 C and exterior camera 35 C. In the relaxed stock profile the sensor read 32 C. The HWiNFO sensor reading is stored. The CPU is a light load for this VRM, so the value is not comparable with tests on 150 W CPUs.

Power draw idleiWhole test system at the wall at idle, measured by a reviewer. Compare only results from the same reviewer and CPU. A chart of CPU and board power without a wall meter does not count.

Not available

Not available

Power draw CPU stressiWhole test system at the wall at the peak of a CPU stress test, measured by a reviewer. The graphics card is not loaded. Compare only results from the same reviewer and CPU. A chart of CPU and board power without a wall meter does not count.

Not available

Not available

In the box

1 of 1 differ

In the boxiItems as the maker lists them.

1 x I/O Shield, 2 x Serial ATA (SATA) Data Cables, 1 x Screw for M.2 Socket1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026Section 1.1 package contents: 1 x I/O Shield, 2 x Serial ATA (SATA) Data Cables (Optional) and 1 x Screw for M.2 Socket (Optional) for the B850M-X R2.0, without the board. The two antennas listed are for the Wi-Fi board and are left out.2Retailer pagecomputerorbit.com/products/asrock-b850m-x-r2-0-micro-atx-am5-motherboardRead 15 October 2026Accessories: 1 x I/O Shield, 2 x SATA Data Cables, 1 x Screw for M.2 Socket.

2 x SATA 6Gb/s cables, 1 x ASUS WiFi Q-Antenna, 1 x Cable ties package, 1 x M.2 Q-Latch package, 1 x ROG key chain, 1 x ROG Strix stickers, 3 x M.2 rubbers, 1 x Screw package for M.2 SSD, 1 x Quick start guide1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026Accessories list on the specification page, the same as the manual's package contents.3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026Package contents list on page 13. It says 1 x ROG Strix sticker.

Links

Not compared

Product page

www.asrock.com/MB/AMD/B850M-X%20R2.0/index.asp10Maker product pageasrock.com/MB/AMD/B850M-X%20R2.0/index.aspRead 15 October 2026The page returned a bot check, so it was not read and the check was not worked around. Its address is the one in the job brief. No value comes from it.

rog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi2Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifiRead 14 October 2026

Spec sheet

Not available

rog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/spec1Maker product pagerog.asus.com/motherboards/rog-strix/rog-strix-b850-g-gaming-wifi/specRead 14 October 2026

Manual

download.asrock.com/Manual/B850M-X%20R2.0.pdf1Owner's manualdownload.asrock.com/Manual/B850M-X%20R2.0.pdfRead 15 October 2026ASRock manual for the B850M-X WiFi R2.0 and the B850M-X R2.0, 72 pages, Version 1.0, published February 2025. The cover says Micro ATX. Items marked B850M-X WiFi R2.0 are not used. asrock.com sits behind a bot check, so the maker's product page was not opened.

dlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdf3Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM5/ROG_STRIX_B850-G_GAMING_WIFI/E25990_ROG_STRIX_B850-G_GAMING_WIFI_EM_WEB.pdfRead 14 October 2026ASUS user guide E25990, First Edition, April 2025, from dlcdnets.asus.com.

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

Warranty

0 of 1 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.

3years5Retailer pageox.ee/en/product/3162912Read 15 October 2026Warranty: 36 months. The market is Estonia. Arvutitark also lists 36 months.

3years10Retailer pageamazon.com/dp/B0FH7MB8WVRead 14 October 2026Warranty Description: 3 Years (US listing).11Retailer pagescan.co.uk/products/asus-rog-strix-b850-g-gaming-wifi-amd-b850-am5-ddr5-pcie-50-4-x-m2-25g-wifi7-usb-20gbps-amd-expo-matRead 14 October 2026Scan UK: 36 months return to base.12Retailer pageeshop.comfeel.cz/asus-mb-sc-am5-rog-strix-b850-g-gaming-wifi-amd-b850-4xddr5-1xdp-1xhdmi-wifi-matxRead 14 October 2026Warranty of 36 months in the Czech shop. It is the shop's stated warranty and not an ASUS page.

Both are also in the API. Back to all motherboards.