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GIGABYTE X870 AORUS STEALTH ICE vs MSI PRO B850M-A WIFI

A

Product A: GIGABYTE

X870 AORUS STEALTH ICE

66 of 78 known

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B

Product B: MSI

PRO B850M-A WIFI

63 of 78 known

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Only differences

AGIGABYTE X870 AORUS STEALTH ICE

BMSI PRO B850M-A WIFI

General

5 of 9 differ

Series

AORUS1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Manual cover: X870 AORUS STEALTH ICE. AORUS is the GIGABYTE brand line in the name.

PRO1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Cover: PRO Series Motherboard, PRO B850M-A WIFI.

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

X870 AORUS STEALTH ICE, X870 A STEALTH ICE1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Manual cover and regulatory table: X870 AORUS STEALTH ICE, short model number X870 A STEALTH ICE. The manual covers the black X870 AORUS STEALTH too, which is a separate product.

PRO B850M-A WIFI1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026The manual names only PRO B850M-A WIFI. The PRO B850M-A WIFI PZ back-connect board is a separate MSI model. No order code or regional model number was found.

GTIN / EAN

47193318730978Retailer pageshop.sumillion.com/gigabyte-x870-aorus-stealth-ice-motherboard-supports-amd-ryzen-9000-cpus-16-2-2-phases-digital-vrm-up-to-8200hz-ddr5-oc-2xpcie-5-0-2xpcie-4-0-wi-fi-7-5-gbe-lan-usb-4-x870-aorus-stealth-ice.htmlRead 15 October 2026EAN 4719331873097. custompc.com.cy lists the same EAN and the part number X870 A STEALTH ICE.

8241424254599Spec databasebuildcores.com/products/Motherboard/ys4ci1k5t/MSI-PRO-B850M-A-WIFIRead 14 October 2026UPC 824142425459, also shown as EAN 0824142425459. The PZ board has its own code.

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

9 May 20259Press articleclub386.com/gigabyte-launches-two-aorus-stealth-ice-back-connect-motherboards-for-am5-cpusRead 15 October 2026Article of 2025-05-09 reports the launch of the X870 and B850 AORUS STEALTH ICE. It says GIGABYTE had not shared pricing or release dates.

6 January 20256Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026Article of 2025-01-06 announces the Pro B850M-A WiFi with the MSI B850 lineup.

Status

Available3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026The AORUS Official Store page lists the board with price and an InStock tag on 2026-10-15.

Available8Spec databasegeizhals.de/msi-pro-b850m-a-wifi-a3383558.htmlRead 14 October 2026Listed with offers on geizhals.eu on 2026-10-14. The base page showed no offers in one snapshot. BuildCores shows it in stock at Newegg and Walmart.9Spec databasebuildcores.com/products/Motherboard/ys4ci1k5t/MSI-PRO-B850M-A-WIFIRead 14 October 2026Shows Newegg at 168.99 USD and Walmart at 172.99 USD in 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.

Not available

Not available

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

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.

$309.997Retailer pageglobal.channelonline.com/andrew/enduser/Products/overview/M026144900Read 15 October 2026Distributor product sheet with a field MSRP: $309.99, for part X870 A STEALTH ICE. SHI lists the same MSRP. The sheet does not date it and is not a GIGABYTE statement. US price, excl. sales tax. The retail price on the sheet is higher.

Not available

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

Not available

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

White5Reviewpcunboxing.com/enRead 15 October 2026The article calls the board a purest all-white motherboard with white DIMM slots.

Not available

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.

Gaming1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026AORUS is GIGABYTE's gaming line.

Mainstream2Maker spec sheet (PDF)storage-asset.msi.com/datasheet/mb/in/PRO-B850M-A-WIFI.pdfRead 14 October 2026The datasheet cover carries the tagline Business and Elegance, and the board sits in MSI's PRO series. MSI names no gaming or creator use.

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

Not available

Platform

1 of 4 differ

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

AM51Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026

AM51Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 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 X8701Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026

AMD B8501Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: AMD Ryzen 9000, 8000 and 7000 Series. The manual refers to the maker's website for the CPU support list. Read on 2026-10-15.

AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, CPU row: AMD Ryzen 9000/8000/7000 Series Desktop Processors, socket AM5. The manual points to msi.com for the newest support list. Read on 2026-10-14.

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

Yes10Maker product pageamd.com/en/products/processors/chipsets/am5.htmlRead 15 October 2026AMD's AM5 chipset page describes the X870 chipset as fully overclockable, and its comparison table reads Yes under Ryzen processor overclocking enabled for X870. This is the chip maker's page and not the board maker's.

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Page 29 says the board is designed to support overclocking. The Special Features list names Core Boost and Memory Boost. The B850 chipset allows CPU overclocking. AMD's chipset page could not be opened on 2026-10-14.

Board

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

ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: ATX form factor, 30.5cm x 24.4cm.

Micro-ATX1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, Form Factor row: mATX, 9.6 in. x 9.6 in. (244 mm x 244 mm).

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.

Width244Height305mm(9.6 × 12 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: 30.5cm x 24.4cm.3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Form factor ATX, 305 x 244 x 35 mm.

Width244Height244mm(9.6 × 9.6 in)1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 244 mm x 244 mm. Guru3D, Netcodex and the MSI Taiwan store give 243.84 mm, the exact conversion of 9.6 in.

PCB layersiCopper layers in the circuit board as published.

65Reviewpcunboxing.com/enRead 15 October 2026A six-layer PCB specification.7Retailer pageglobal.channelonline.com/andrew/enduser/Products/overview/M026144900Read 15 October 20266 Layer PCB, with 2x Copper PCB.

63Maker product pagemy-store.msi.com/products/msi-pro-b850m-a-wifi-matx-motherboardRead 14 October 2026Product details: 6-layer PCB made by 2oz thickened copper and server-grade level material.4Maker product pagetw-store.msi.com/products/pro-b850m-a-wifiRead 14 October 2026The Chinese text says a 6-layer server-grade PCB with 2oz copper. One search result summary of MSI's global page mentioned 8 layers, which no maker page or document confirmed.6Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026Six-layer PCB.

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.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026The manual's section 1-1 has a Rear View with the power, fan, SATA and USB header connectors on the back of the PCB. Club386 and Red Dot describe the board as back-connect.5Reviewpcunboxing.com/enRead 15 October 2026The article calls it a back-plug design.9Press articleclub386.com/gigabyte-launches-two-aorus-stealth-ice-back-connect-motherboards-for-am5-cpusRead 15 October 2026The article names the boards back-connect, with the cable headers on the rear of the PCB.

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026The component overview on page 27 shows the usual front-side power, fan and front-panel connectors. The back-connect board is the separate PRO B850M-A WIFI PZ.

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.

Yes4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026The DIMM slot cover has RGB lighting. pcunboxing says the lighting near the memory slots can be set in GIGABYTE Control Center, and Channel Online lists RGB FUSION. The review writes 'cubierta embellecedora provista de iluminacion RGB'.5Reviewpcunboxing.com/enRead 15 October 2026The only lighting that GCC can adjust is on the right side of the memory slots.7Retailer pageglobal.channelonline.com/andrew/enduser/Products/overview/M026144900Read 15 October 2026Notable features list RGB FUSION.

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, LED Features: 4x EZ Debug LED, 1x EZ Memory Detection LED and the RGB and ARGB headers. The list names no lighting on the board itself. BuildCores shows Lighting: None.9Spec databasebuildcores.com/products/Motherboard/ys4ci1k5t/MSI-PRO-B850M-A-WIFIRead 14 October 2026Lighting: none listed. The headers are for external devices.

Power delivery

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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.

16+2+23Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Digital twin 16+2+2 phases VRM solution with VRM Thermal Armor Advanced. A pre-launch GIGABYTE press release, seen only in a search result, says 18+2+2, which the retail board does not match.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 202616+2+2 phases, with the 16 Vcore phases as 8+8 in parallel.5Reviewpcunboxing.com/enRead 15 October 2026CPU power 16 (80A) + 2 (80A) + 2 phases, 16-phase SPS 80A VCORE powered by 8+8 phase parallel supplies.7Retailer pageglobal.channelonline.com/andrew/enduser/Products/overview/M026144900Read 15 October 202616+2+2 Phase Power Design, VRM Thermal Armor Advanced.

8+2+13Maker product pagemy-store.msi.com/products/msi-pro-b850m-a-wifi-matx-motherboardRead 14 October 2026Product details: Direct 8+2+1 Power System 60A SPS, 8+4-pin CPU power connectors.4Maker product pagetw-store.msi.com/products/pro-b850m-a-wifiRead 14 October 2026Text names an 8+2+1 Duet Rail power system with dual 8+4-pin CPU power connectors.6Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 2026MSI's launch text through Club386: 8+2+1 phases rated at 60A.7Press articleguru3d.com/story/msi-pro-b850ma-wifi-microatx-motherboard-with-wifi-7-and-5-gigabit-lanRead 14 October 20268+2+1 phase design with 60A smart power stages.10Spec databasemaxmybuild.com/motherboards/msi-pro-b850m-a-wifiRead 14 October 20268+2+1 power stage layout, 60A SPS.

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.

164Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Infineon PMC41410 power stages for Vcore and VSoC. The 16 Vcore phases run as 8+8 in parallel.5Reviewpcunboxing.com/enRead 15 October 202616-phase SPS Vcore as 8+8 in parallel.

88Spec databasegeizhals.de/msi-pro-b850m-a-wifi-a3383558.htmlRead 14 October 2026VRM row: 8+2+1, 8x 60 A MP87661 smart power stages for VCORE, 2 for SOC and 1 for misc.

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.

80A4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Infineon PMC41410, 80A rated. pcunboxing writes 16 (80A) + 2 (80A) + 2 phases, which copies the maker's wording. The figure is stored as 80 A.5Reviewpcunboxing.com/enRead 15 October 202616-phase SPS 80A VCORE phases.

60A3Maker product pagemy-store.msi.com/products/msi-pro-b850m-a-wifi-matx-motherboardRead 14 October 2026Direct 8+2+1 Power System 60A SPS.6Press articleclub386.com/msi-launches-mid-and-entry-motherboards-for-amds-am5-platformRead 14 October 20268+2+1 phases rated at 60A.7Press articleguru3d.com/story/msi-pro-b850ma-wifi-microatx-motherboard-with-wifi-7-and-5-gigabit-lanRead 14 October 202660A smart power stages.

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.

Infineon XDPE192C3D4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Digital controller Infineon XDPE192C3D. The review also names an RT3672EE in the lower area, which is not stored.

Richtek RT3678BE8Spec databasegeizhals.de/msi-pro-b850m-a-wifi-a3383558.htmlRead 14 October 2026PWM controller row: RT3678BE (max 10 phases) and RT3672EE (max 2 phases). Geizhals names no maker. The RT3678 family is Richtek's. The Vcore controller is stored. No review names a controller, and this is one aggregator.

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

8+4 pin1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-8: one 8-pin ATX 12V connector (ATX_12V), one 4-pin ATX 12V connector (ATX_12V1) and the 24-pin ATX connector.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026The review writes two 8-pin EPS connectors, which the manual does not support. The manual lists 8-pin plus 4-pin and wins.6Reviewfunkykit.com/reviews/motherboards/gigabyte-x870-aorus-stealth-ice-motherboard-review/2Read 15 October 2026Page 2 copies the maker's list: 24-pin ATX, 8-pin ATX12V and 4-pin ATX12V.

8+4 pin1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, Power Connectors: 1x 24-pin ATX, 1x 8-pin +12V, 1x 4-pin +12V and 1x 8-pin PCIe power connector.3Maker product pagemy-store.msi.com/products/msi-pro-b850m-a-wifi-matx-motherboardRead 14 October 20268+4-pin CPU power connectors.

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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026The section 2-2 internal connector list has no extra slot power connector.

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and page 41: PCIE_PWR1, an 8-pin PCIe power connector. The Special Features list names it Supplemental PCIe Power Connector.

Memory

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Memory type

DDR51Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: DDR5, 4 sockets, up to 256 GB (64 GB per DIMM), dual channel. The manual lists only 5200/4800 MT/s as module speeds and refers to the Memory Support List.

DDR51Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, Memory row: 4x DDR5 memory slots, supporting up to 256GB, dual channel. The slots have a single latch.

Memory slotsiDIMM slots on the board.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026

41Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 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.

256GB1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026

256GB1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026

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/s3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Memory max 8200 MHz, 4 slots, 256 GB. The page does not name a CPU family or module setup. Ryzen 9000 is the newest family of the board. Retailer sheets write 8200 MT/s (O.C.).5Reviewpcunboxing.com/enRead 15 October 2026Up to 8200 MT/s (O.C.) per the QVL list with the Ryzen 9000 series.7Retailer pageglobal.channelonline.com/andrew/enduser/Products/overview/M026144900Read 15 October 2026Memory speeds 4400 MT/s up to 8200 MT/s (O.C.).

8,200MT/s2Maker spec sheet (PDF)storage-asset.msi.com/datasheet/mb/in/PRO-B850M-A-WIFI.pdfRead 14 October 2026Memory Support: 4 DIMMs, Dual Channel DDR5 - 8200+ MT/s (OC). The maker names no CPU family and no module setup for the figure. The MSI Malaysia store and the Taiwan store say the same. The JEDEC range is 5600 to 4800 MT/s.

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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: support for non-ECC unbuffered DIMM 1Rx8/2Rx8/1Rx16 modules.

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: Supports Non-ECC, Un-buffered memory.

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.

Not available

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: Supports CUDIMM, Clock Driver bypass mode only.

Expansion slots

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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.

AGIGABYTE X870 AORUS STEALTH ICE

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: PCIEX16 is from the CPU, PCIe 5.0 x16 with Ryzen 9000 and 7000. Ryzen 8000 Phoenix 1 and Phoenix 2 run it at PCIe 4.0 x8 and x4. PCIEX4 is an x16-length slot from the chipset, PCIe 4.0 at x4, and it shares bandwidth with M2D_SB.

BMSI PRO B850M-A WIFI

Physical slot	Electrical lanes	PCIe generation	Connected to	Count
PCIe x16	16	5	CPU	1
PCIe x16	4	4	Chipset	1
PCIe x1	1	3	Chipset	1

Source1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and page 32: 2x PCIe x16 slots and 1x PCIe x1 slot. PCI_E1 is from the CPU, PCIe 5.0 x16 with Ryzen 9000 and 7000. It runs PCIe 4.0 x8 with Ryzen 8700, 8600 and 8400, and PCIe 4.0 x4 with Ryzen 8500 and 8300. PCI_E3 is a x16 slot from the B850 chipset, up to PCIe 4.0 x4. PCI_E2 is the x1 slot from the chipset, up to PCIe 3.0 x1. Guru3D also writes the second slot as PCIe 4.0 x4 in x16 physical size.

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

2=CalculatedFrom Expansion slots

2=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

4 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.

AGIGABYTE X870 AORUS STEALTH ICE

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M2A_CPU	5	4	CPU	M.2 22110	No	Yes	Not available
M2B_CPU	5	4	CPU	M.2 22110	No	Yes	The two rear USB4 ports. With a drive in the slot, the slot and the USB4 ports run at PCIe 5.0 x2. A BIOS setting gives the slot x4 and turns the USB4 ports off.
M2C_SB	4	4	Chipset	M.2 22110	No	Yes	Not available
M2D_SB	4	4	Chipset	M.2 22110	No	Yes	The PCIEX4 slot turns off when a drive is in this slot.

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-8. M2A_CPU takes 25110/22110/2580/2280, PCIe 5.0 x4/x2 with Ryzen 9000 and 7000, from the CPU. M2B_CPU takes 22110/2280, PCIe 5.0 x4/x2, from the CPU. It shares bandwidth with the two rear USB4 ports and is unavailable with a Ryzen 8000 Phoenix 2 processor. M2C_SB and M2D_SB take 22110/2280, PCIe 4.0 x4/x2, from the chipset. The 2-8 text says the M.2 connectors support only M.2 PCIe SSDs and the table marks M.2 SATA SSDs as not supported on all four. 22110 is stored for the 25110 and 22110 slot. The heatsink flags come from the layout and from pcunboxing and Profesional Review (see their notes).4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026The first M.2 slot has its own heatsink. A large aluminium block covers 3 of the 4 M.2 slots. M2B_CPU has thermal pads on both sides of the drive.5Reviewpcunboxing.com/enRead 15 October 2026M2A_CPU has an M.2 Thermal Guard L heatsink. The larger M.2 Thermal Guard Ext. heatsink covers the lower three M.2 slots. M2B_CPU also has a cooling backplate with M.2 EZ-Flex and shares bandwidth with the rear USB4 port, so it defaults to x2.

BMSI PRO B850M-A WIFI

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 manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and pages 33 to 37, Ryzen 9000 values. M2_1 is from the CPU, up to PCIe 5.0 x4 (PCIe 4.0 x4 with Ryzen 8000), 2260 and 2280 drives, under the screwless EZ M.2 Shield Frozr II heatsink. M2_2 is from the CPU, up to PCIe 4.0 x4 (PCIe 4.0 x2 with Ryzen 8500 and 8300), 2260 and 2280 drives. The M2_2 install steps show a clip and no heatsink. MaxMyBuild and Geizhals agree that only one M.2 slot has a heatsink. No slot lists an M.2 SATA mode, so sata is false. The Wi-Fi module sits in a separate M.2 Key-E slot.10Spec databasemaxmybuild.com/motherboards/msi-pro-b850m-a-wifiRead 14 October 2026M.2 heatsinks: slot 1 only.

M.2 slots

4=CalculatedFrom M.2 storage slots

2=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

2=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.

21Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and the block diagram: 2 x SATA 6Gb/s connectors (SATA3 0 and 1). Club386 writes 4 SATA, which the manual does not support.6Reviewfunkykit.com/reviews/motherboards/gigabyte-x870-aorus-stealth-ice-motherboard-review/2Read 15 October 2026Page 2: 2 SATA 6Gb/s ports.

41Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 4x SATA 6Gb/s ports from the B850 chipset.

Rear ports

5 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.

AGIGABYTE X870 AORUS STEALTH ICE

Type	Version	Count	Max link rate (Gbps)	Thunderbolt or USB4	DP Alt Mode
USB-C	USB4	2	40	USB4	Yes
USB-C	USB 3.2 Gen 2	1	10	Not available	Not available
USB-A	USB 3.2 Gen 2	2	10	Not available	Not available
USB-A	USB 3.2 Gen 1	4	5	Not available	Not available
USB-A	USB 2.0	4	0.48	Not available	Not available
HDMI	HDMI 2.1	1	Not available	Not available	Not available
Ethernet (RJ45)	Not available	1	5	Not available	Not available
3.5 mm audio	Not available	2	Not available	Not available	Not available
Optical S/PDIF	Not available	1	Not available	Not available	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-6: 1 HDMI (HDMI 2.1 version, 4096x2160@60 Hz), 2 USB4 Type-C ports with DisplayPort (DisplayPort 1.4 through an adapter cable or USB4 monitor, 3840x2160@240 Hz), 1 USB Type-C with USB 3.2 Gen 2, 2 USB 3.2 Gen 2 Type-A (red), 4 USB 3.2 Gen 1, 4 USB 2.0/1.1, 1 RJ-45 up to 5 Gbps, 1 optical S/PDIF out and 2 audio jacks. The manual does not name the four USB 3.2 Gen 1 ports Type-A and does not state 40 Gbps for the USB4 ports. pcunboxing lists 4 Type-A 5Gbps ports and USB4 at 40Gbps. The two antenna connectors are not ports. The Q-Flash Plus function sits on one of the USB 3.2 Gen 2 Type-A ports. The manual lists no power output for the Type-C ports. The manual's back panel list calls the Type-C port a header, which is a wording slip.5Reviewpcunboxing.com/enRead 15 October 2026Rear list: 2 USB4 Type-C 40Gbps, 1 USB 10Gbps Type-C, 2 USB 10Gbps Type-A (red), 4 USB 5Gbps Type-A, 4 USB 2.0 Type-A, HDMI 2.1, 5 Gbps RJ-45.

BMSI PRO B850M-A WIFI

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 2	2	10
USB-A	USB 3.2 Gen 2	3	10
USB-A	USB 3.2 Gen 1	3	5
HDMI	HDMI 2.1	1	Not available
DisplayPort	DisplayPort 1.4	1	Not available
Ethernet (RJ45)	Not available	1	5
3.5 mm audio	Not available	3	Not available

Source1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and pages 19 and 23: 3x USB 10Gbps Type-A (CPU), 2x USB 10Gbps Type-C (B850 chipset), 3x USB 5Gbps Type-A (B850 chipset), 1x DisplayPort 1.4, 1x HDMI 2.1, 1x 5G LAN (RJ45) and 3 audio jacks (line-in, line-out, mic-in). The MSI datasheet agrees. MSI's speed names are stored as USB-IF names: 5Gbps as USB 3.2 Gen 1 and 10Gbps as Gen 2. DisplayPort and HDMI work only with a CPU that has integrated graphics, 4K 60 Hz. The manual gives no USB power output or DisplayPort alt mode figures. The two Wi-Fi antenna connectors and the Clear CMOS and Flash BIOS buttons are not ports.

Rear USB ports

13=CalculatedFrom Rear ports

8=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

3=CalculatedFrom Rear ports

2=CalculatedFrom Rear ports

Fastest rear USB port

40Gbps=CalculatedFrom Rear ports

10Gbps=CalculatedFrom Rear ports

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

No=CalculatedFrom Rear ports

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.

AGIGABYTE X870 AORUS STEALTH ICE

Header	Max data rate (Gbps)	Headers	Front ports served
USB-C header	20	1	1
USB 3 header (19-pin)	5	1	2
USB 2.0 header (9-pin)	0.48	2	4

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-8: USB Type-C header FU3C_20G with USB 3.2 Gen 2x2 (one port), USB 3.2 Gen 1 header FU3A_5G (two ports) and two USB 2.0/1.1 headers FUSB_1 and FUSB_2 (two ports each). The manual gives no power output for the Type-C header.

BMSI PRO B850M-A 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

Source1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and pages 43 and 44: JUSBC1 is 1x USB 10Gbps Type-C front port. JUSB3 is one 5Gbps connector for 2 ports. JUSB1 and JUSB2 are two USB 2.0 connectors for 4 ports.

Front USB-C header speed

20Gbps=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.

81Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: 1 CPU fan, 1 CPU fan/water cooling pump, 4 system fan and 2 system fan/water cooling pump headers, all 4-pin. That is 8 headers.6Reviewfunkykit.com/reviews/motherboards/gigabyte-x870-aorus-stealth-ice-motherboard-review/2Read 15 October 2026Page 2 copies the maker's list: 1 CPU fan, 1 CPU fan/pump, 4 system fan and 2 system fan/pump headers.

51Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 1x 4-pin CPU fan, 1x 4-pin water-pump/system fan and 3x 4-pin system fan connectors. The 7-pin EZ Conn connector carries a fan and ARGB together and is not counted.

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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: 3 x addressable RGB Gen2 LED strip headers.

31Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 3x 3-pin A-RAINBOW V2 (ARGB Gen2) LED connectors.

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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: 1 x RGB LED strip header (LED_C).

11Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 1x 4-pin RGB LED connector (JRGB1).

Networking

2 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 RTL81263Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Specifications: Realtek RTL8126 5GbE LAN.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026LAN: Realtek RTL8126, 5 GbE.8Retailer pageshop.sumillion.com/gigabyte-x870-aorus-stealth-ice-motherboard-supports-amd-ryzen-9000-cpus-16-2-2-phases-digital-vrm-up-to-8200hz-ddr5-oc-2xpcie-5-0-2xpcie-4-0-wi-fi-7-5-gbe-lan-usb-4-x870-aorus-stealth-ice.htmlRead 15 October 20265GbE LAN (Realtek RTL8126).

Realtek RTL81261Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 1x Realtek 8126 5Gbps LAN controller. Retailer listings and Geizhals add the suffix VB, which is left out.

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

5Gbps=CalculatedFrom Rear ports

5Gbps=CalculatedFrom Rear ports

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

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and the block diagram: an M2_WIFI socket carries the Wi-Fi module, with two antenna connectors (2T2R). The box has one antenna.

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: the wireless module is pre-installed in the M.2 (Key-E) slot. This applies to PRO B850M-A WIFI only.

Wi-Fi standard

Wi-Fi 71Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: Qualcomm Wi-Fi 7 QCNCM865, 802.11a, b, g, n, ac, ax, be.

Wi-Fi 71Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 802.11 a/b/g/n/ac/ax/be.

Wi-Fi bandsiBands the installed module supports.

2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: 2.4/5/6 GHz carrier frequency bands. The 6 GHz band depends on country regulations.

2.4 GHz, 5 GHz, 6 GHz1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: 2.4GHz/5GHz/6GHz. 6 GHz may depend on each country's regulations.

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.

320MHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: support for the 11be 320MHz wireless standard.

160MHz1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: MU-MIMO TX/RX, 2.4GHz/5GHz/6GHz (160MHz) up to 2.9Gbps.

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.

Qualcomm QCNCM8651Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and the regulatory table: wireless module model name QCNCM865, Qualcomm Wi-Fi 7.3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Specifications: Qualcomm QCNCM865 Wi-Fi 7. The page writes Bluetooth 5.3.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Wi-Fi: Qualcomm QCNCM865, Wi-Fi 7, 320 MHz.8Retailer pageshop.sumillion.com/gigabyte-x870-aorus-stealth-ice-motherboard-supports-amd-ryzen-9000-cpus-16-2-2-phases-digital-vrm-up-to-8200hz-ddr5-oc-2xpcie-5-0-2xpcie-4-0-wi-fi-7-5-gbe-lan-usb-4-x870-aorus-stealth-ice.htmlRead 15 October 2026Wi-Fi 7 (Qualcomm QCNCM865).

Not available

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

5.41Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: BLUETOOTH 5.4, with a note that the version may change with updates. The AORUS store pages and some retailers write Bluetooth 5.3. The manual wins as the maker document.6Reviewfunkykit.com/reviews/motherboards/gigabyte-x870-aorus-stealth-ice-motherboard-review/2Read 15 October 2026Page 2 copies the maker's specification list: Qualcomm QCNCM865 Wi-Fi 7 with Bluetooth 5.4.

5.41Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications: Bluetooth 5.4, MLO, 4KQAM. The version may be updated by the Wi-Fi chipset vendor.

Audio

1 of 2 differ

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

Realtek ALC12201Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: Realtek ALC1220 CODEC. The store pages write ALC1220-VB.3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Specifications: Realtek ALC1220-VB, 7.1 channels.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Audio codec: Realtek ALC1220.

Realtek ALC8971Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, Audio row: Realtek ALC897 Codec, 7.1-channel High Definition Audio. Geizhals and Netcodex say the same.

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

5 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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-7: Q-Flash Plus button on the board and the red USB 3.2 Gen 2 Type-A rear port. It updates the BIOS with the system off.

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and page 23: Flash BIOS button on the rear panel, with a Flash BIOS port (USB 10Gbps Type-A).

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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2 and 2-8: Clear CMOS jumper (CLR_CMOS). The rear panel list has no button. Profesional Review writes an onboard Clear CMOS button, which the manual does not list.

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications and page 23: Clear CMOS button on the rear panel. JBAT1 is a second jumper.

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.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 1-1 layout shows DB_PORT with the note that debug code information is in the Debug LED Codes pages (section 5-2), which list two-character codes. Section 2-7 lists four status LEDs (CPU, DRAM, VGA, BOOT). Profesional Review and pcunboxing describe a digital debug code display in the upper right corner of the board.4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026The upper corner has a POST panel with 4 LEDs and a digital Debug LED display, with the Power, Reset and Q-Flash Plus buttons.5Reviewpcunboxing.com/enRead 15 October 2026The upper right corner has an EZ DeBug lamp, PWR and RESET buttons, a Q-Flash Plus button and a debug code display.

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, LED Features: 4x EZ Debug LED and 1x EZ Memory Detection LED. They are single status LEDs and the manual lists no two-digit display.

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.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-7: power button and reset button on the board for open-case use.

Not available

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 manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-2: BIOS is 1 x 512 Mbit flash. Dual BIOS is not stated. The layout shows one BIOS chip, M_BIOS.

No1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Specifications, BIOS Features: 1x 256 Mb flash. Dual BIOS is not stated.

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

Not available

Yes1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Special Features, EZ DIY: Pre-installed 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 latch, Tool-free M.2 heatsink, PCIe slot release, Push-on antenna connector1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 2-5 and 2-8: PCIe EZ-Latch Plus, M.2 EZ-Latch Plus (screwless M.2 SSD clip) and M.2 EZ-Latch Click (screwless heatsink). The WIFI EZ-Plug antenna connector is named on the AORUS store page and in Funkykit and Profesional Review.3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Key features: EZ-Latch Plus quick-release screwless design for PCIe and M.2 slots, M.2 EZ-Latch Click heatsinks and WIFI EZ-Plug antenna design.5Reviewpcunboxing.com/enRead 15 October 2026The article lists EZ-Latch Plus and Click and the PCIe slot release.6Reviewfunkykit.com/reviews/motherboards/gigabyte-x870-aorus-stealth-ice-motherboard-review/2Read 15 October 2026Page 2: WIFI EZ-Plug, EZ-Latch Plus and EZ-Latch Click.

Tool-free M.2 latch, Tool-free M.2 heatsink, PCIe slot release1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Special Features, EZ DIY: EZ M.2 Shield Frozr II (screwless M2_1 heatsink, pages 34 to 36), EZ M.2 Clip II (locks the SSD without a screw) and EZ PCIe Clip II (release for the graphics card). The Wi-Fi antenna cables are screwed on (page 26), so antenna_connector is not stored.

Measured

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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.

49°C4Reviewprofesionalreview.com/2025/07/15/x870-aorus-stealth-ice-review/ampRead 15 October 2026Ryzen 9 7950X at stock settings with the default voltage, Corsair H150i ELITE LCD cooler, CPU stress test. The thermal camera read 49 C at full stock load (34 C relaxed stock) and the HWiNFO VRM sensor read 48 C (46 C relaxed). The reviewer says the 7950X draws about 200 W under stock PBO. The stress test software, its duration and the ambient temperature are not stated. The camera value is stored.

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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.

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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.

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In the box

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In the boxiItems as the maker lists them.

X870 AORUS STEALTH ICE motherboard, User's Manual, Quick Installation Guide, One antenna, Two SATA cables, One G Connector, Three packs of M.2 thick/thin rubber pads1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026Section 1-3. The list is shared with the black X870 AORUS STEALTH, and the manual says the actual items depend on the package.

1x Motherboard, 1x Quick installation guide, 1x European Union Regulatory Notices, 1x SATA cable, 1 x 1 to 2 EZ Conn-Cable (V1), 1x EZ Wi-Fi Antenna, 2x EZ M.2 Clip II, 1x EZ M.2 Clip II Remover1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026Package Contents, page 22.

Links

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Product page

www.gigabyte.com/Motherboard/X870-AORUS-STEALTH-ICE-rev-102Maker product pagegigabyte.com/Motherboard/X870-AORUS-STEALTH-ICE-rev-10Read 15 October 2026The URL comes from the job evidence and search results. gigabyte.com blocks agents, so the page was not opened. GIGABYTE lists the board as Rev. 1.0 and Rev. 1.1. Specifications were read from the user's manual, the maker's AORUS store page, retailer sheets and reviews.

www.msi.com/Motherboard/PRO-B850M-A-WIFI5Maker product pagemsi.com/Motherboard/PRO-B850M-A-WIFIRead 14 October 2026The URL comes from the job evidence and search results. msi.com blocks agents, so the page was not opened. Specifications were read from the user guide, the datasheet and MSI's regional stores.

Spec sheet

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storage-asset.msi.com/datasheet/mb/in/PRO-B850M-A-WIFI.pdf2Maker spec sheet (PDF)storage-asset.msi.com/datasheet/mb/in/PRO-B850M-A-WIFI.pdfRead 14 October 2026One-page MSI datasheet for PRO B850M-A WIFI, generated 2025-10-31, on MSI's datasheet server.

Manual

www.trovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_aorus_x870_stealth_ice.pdfRead 15 October 2026GIGABYTE User's Manual Rev. 1002 for X870 AORUS STEALTH ICE and X870 AORUS STEALTH (model numbers X870 A STEALTH ICE and X870 A STEALTH), 48 pages, English, hosted by trovaprezzi.it. The maker's own manual was not opened because gigabyte.com blocks agents.

static.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdf1Owner's manualstatic.buildcores.com/part-attachments/6ca91b70-bec1-4089-823a-42e63ffd6950_PROB850M-AWIFI_PROB850M-A_English.pdfRead 14 October 2026MSI User Guide for PRO B850M-A WIFI (66 pages), hosted by buildcores.com. msi.com blocks agents, so the maker's own copy was not opened.

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

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Warranty

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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.

3years3Maker product pagestore.aorus.com/x870-aorus-stealth-ice-motherboardRead 15 October 2026Warranty 3 years on the AORUS store page (EU store).8Retailer pageshop.sumillion.com/gigabyte-x870-aorus-stealth-ice-motherboard-supports-amd-ryzen-9000-cpus-16-2-2-phases-digital-vrm-up-to-8200hz-ddr5-oc-2xpcie-5-0-2xpcie-4-0-wi-fi-7-5-gbe-lan-usb-4-x870-aorus-stealth-ice.htmlRead 15 October 2026Warranty 3 years.

3years3Maker product pagemy-store.msi.com/products/msi-pro-b850m-a-wifi-matx-motherboardRead 14 October 2026MSI Malaysia store: 3 years limited warranty. Geizhals says 3 years too.8Spec databasegeizhals.de/msi-pro-b850m-a-wifi-a3383558.htmlRead 14 October 2026Warranty 3 Jahre.

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