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ASUS TUF GAMING B550-PLUS WIFI II vs GIGABYTE Z790 AORUS ELITE AX

A

Product A: ASUS

TUF GAMING B550-PLUS WIFI II

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B

Product B: GIGABYTE

Z790 AORUS ELITE AX

61 of 78 known

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Only differences

AASUS TUF GAMING B550-PLUS WIFI II

BGIGABYTE Z790 AORUS ELITE AX

General

1 of 9 differ

Series

TUF Gaming3Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-iiRead 15 October 2026TUF Gaming is the ASUS line in the product name.

AORUS7Retailer pageldlc.com/en/product/PB00520901.htmlRead 15 October 2026LDLC: AORUS motherboard. AORUS is the GIGABYTE line name in the product name.

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

TUF GAMING B550-PLUS WIFI II, 90MB19U0-M0EAY06Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 2026Manufacturer model number 90MB19U0-M0EAY0.8Retailer pageoffice-partner.de/asus-tuf-gaming-b550-plus-wifi-ii-mainboard-sockel-ryzen-am4-20131627Read 15 October 2026Herstellernummer 90MB19U0-M0EAY0.

Z790 AORUS ELITE AX1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Manual cover: Z790 AORUS ELITE AX.

GTIN / EAN

4711081338413, 47180178627766Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 2026Scan UK lists GTIN 4718017862776 for part number 90MB19U0-M0EAY0. office-partner.de lists EAN 4711081338413 for the same part number. The two codes differ and may be regional barcodes. Both are stored.8Retailer pageoffice-partner.de/asus-tuf-gaming-b550-plus-wifi-ii-mainboard-sockel-ryzen-am4-20131627Read 15 October 2026EAN 4711081338413 for part number 90MB19U0-M0EAY0.

4719331849467, 8895230340025Spec databasebuildcores.com/products/Motherboard/v9byrya49/Gigabyte-Z790-AORUS-ELITE-AX-DDR5-ATX-LGA1700Read 15 October 2026BuildCores: UPC 889523034002 and EAN 4719331849467 for the Z790 AORUS ELITE AX. Retailers in Cyprus and Spain list the same EAN.

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

Not available

Not available

Status

Available5Maker product pageasus.com/us/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/where-to-buyRead 15 October 2026ASUS US where-to-buy page lists the board in stock at six retailers on 2026-10-15.9Retailer pagemaxmybuild.com/motherboards/asus-tuf-gaming-b550-plus-wifi-iiRead 15 October 2026Lists the board in stock at Amazon at $109.99 and at Newegg at $119.99, updated 2026-10-15.

Available2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026On 2026-10-15 Geizhals shows 33 offers.6Spec databasemaxmybuild.com/motherboards/gigabyte-z790-aorus-elite-axRead 15 October 2026MaxMyBuild shows the board in stock at Newegg for 189.99 USD on 2026-10-15.

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

GIGABYTE Z890 AORUS ELITE WIFI710Reviewhwcooling.net/en/gigabyte-z890-aorus-elite-wifi7-in-test-with-core-ultra-9-285k-reviewRead 23 October 2026HWCooling's review of the Z890 Aorus Elite WiFi7 names the Z790 Aorus Elite AX as the previous generation and as its predecessor.

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

Not available

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

Not available

ColoursiThe maker's own colour names

Not available

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.

Gaming2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026The page sits in the ASUS TUF Gaming family under the ASUS Gaming menu.

Gaming7Retailer pageldlc.com/en/product/PB00520901.htmlRead 15 October 2026LDLC calls it a Gigabyte AORUS gaming motherboard.

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

3 of 4 differ

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

AM41Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: AMD AM4 Socket.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

LGA17001Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 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 B5501Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 20262Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

Intel Z7901Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 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 5000 Series, AMD Ryzen 5000 G-Series, AMD Ryzen 4000 G-Series, AMD Ryzen 3000 Series1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: AMD AM4 socket for Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series desktop processors. The manual refers to www.asus.com for the CPU support list. Read on 2026-10-15.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

Intel Core (14th Gen), Intel Core (13th Gen), Intel Core (12th Gen), Intel Pentium Gold, Intel Celeron1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 13th and 12th Generation Intel Core, Pentium Gold and Celeron on LGA1700. The 14th Gen is from Geizhals and Tech4Gamers, which list it for the current BIOS. The manual refers to GIGABYTE's website for the latest CPU list. Read on 2026-10-15.2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals CPU compatibility: Celeron G6000, Pentium Gold G7000, Core i-12000, i-13000 and i-14000.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Key specifications table: Intel 14th, 13th and 12th Gen.

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

Yes10Spec databaseeatyourbytes.com/chipsetdetail/amd_b550Read 15 October 2026The chipset page lists AMD B550 as supporting overclocking. This is the chipset's feature, not a board spec.

Yes4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Review (2022-12-17): the board overclocked an i9-13900K from the BIOS to 5.6 GHz on the P-cores and 4.3 GHz on the E-cores at 1.38 V.

Board

1 of 5 differ

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

ATX1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: ATX form factor, 12 inch x 9.6 inch (30.5 cm x 24.4 cm).

ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: ATX form factor, 30.5 cm x 24.4 cm.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: 12 inch x 9.6 inch (30.5 cm x 24.4 cm). The 244 mm side is the width, as for ATX.

Width244Height305mm(9.6 × 12 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 30.5 cm x 24.4 cm, stored as 244 mm wide and 305 mm high.

PCB layersiCopper layers in the circuit board as published.

Not available

63Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: the 6-layered and 2x copper 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.

No1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026The chapter 1 layout shows the usual front-side power, fan and USB connectors. The board is not a back-connect design.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026The section 2-8 connector layout shows the usual front-side 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.

Yes3Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-iiRead 15 October 2026The Aura Sync section describes full RGB lighting control for the built-in RGB LEDs as well as strips on the onboard RGB headers. The maker's product photo shows an orange glow at the lower right edge of the board.6Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 2026ASUS Aura with full RGB control for the built-in RGB LEDs and the onboard headers.

Yes2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals lighting: RGB, 1 zone (chipset heatsink). Tech4Gamers and Profesional Review see the same RGB Fusion 2.0 zone under the chipset cover. GIGABYTE's manual names no lighting.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: subtle RGB lighting under the chipset cover.

Power delivery

4 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.

8+23Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-iiRead 15 October 2026The overview text says the VRM uses 8+2 DrMOS power stages that combine high-side and low-side MOSFETs and driver in one package. The page title and meta text say 10 DrMOS power stages, which is the same total. No amperage rating is given.

16+1+22Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals reads 16+1+1 from the board (17 virtual CPU phases, 9 real phases). GIGABYTE's text, which LDLC and Tech4Gamers copy, is Twin 16+1+2 (8+8 parallel).7Retailer pageldlc.com/en/product/PB00520901.htmlRead 15 October 2026LDLC text: VRM 16+1+2 phases (8+8 parallel).

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.

83Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-iiRead 15 October 20268 of the 10 DrMOS power stages are for the CPU core, from the 8+2 layout.

162Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: 16 x 70 A FDMF5062 smart power stages for Vcore, 1 x 60 A NCP303160 for GT.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: 16 phases in parallel for Vcore using Infineon TDA21472 70 A power stages. Profesional Review and Geizhals read onsemi 5062 stages, so the stage maker is not stored.4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Review: 16 phases for Vcore, 1 for VccGT and 2 for VccAUX, with 18 onsemi 5062 MOSFETs rated 70 A and 1 NCP302155 rated 60 A.

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

Not available

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

onsemi NCP81530R2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: PWM controller NCP81530R (max 10 phases). Profesional Review names the same chip.4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Review: the controller is an onsemi NCP81530R.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 1 x 24-pin main power and 1 x 8-pin +12V power connector. The manual says to ensure the 8-pin power plug is connected.

8+8 pin1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 2 x 8-pin ATX 12V 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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026The internal connector list has no extra slot power connector.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026The section 2-2 internal connector list has no extra slot power connector.

Memory

4 of 6 differ

Memory type

DDR41Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: 4 x DIMM, max. 128GB, DDR4 unbuffered memory, dual channel.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

DDR51Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026

Memory slotsiDIMM slots on the board.

41Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 20262Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

41Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 20262Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 20264 DIMM slots, up to 128GB of DDR4 unbuffered memory in dual-channel mode.

256GB2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: 4 DDR5 DIMM slots, max. 256 GB UDIMM non-ECC. BuildCores and MaxMyBuild also say 256 GB. The launch manual says 128 GB (32 GB per DIMM), LDLC says 192 GB (48 GB per DIMM) and a later manual for the white ICE model says 256 GB. BIOS updates raised the limit.5Spec databasebuildcores.com/products/Motherboard/v9byrya49/Gigabyte-Z790-AORUS-ELITE-AX-DDR5-ATX-LGA1700Read 15 October 2026BuildCores: max memory 256 GB.6Spec databasemaxmybuild.com/motherboards/gigabyte-z790-aorus-elite-axRead 15 October 2026MaxMyBuild: max capacity 256 GB.

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.

4,866MT/s1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026The memory list runs from 2133 to 4866(OC) MHz. The manual says memory frequency support depends on the CPU type and does not name a CPU family or module setup. Ryzen 5000 is the newest family for this board.

7,600MT/s2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: max. DDR5-7600 OC. LDLC (GIGABYTE text) and Tech4Gamers say DDR5 7600 MHz (OC) too, with a BIOS update. CPU defaults are 5600 MT/s for 13th and 14th Gen i9 and i7. The speed is not tied to a CPU family in these sources.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Key specifications table: DDR5 up to 7600 MHz+ (OC). The review says it works with a BIOS update.7Retailer pageldlc.com/en/product/PB00520901.htmlRead 15 October 2026LDLC text: support for DDR5 7600 MHz memory (OC).8Reviewtheoverclocker.comRead 15 October 2026The Overclocker says the board officially supports DDR5 7600 at its price.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: ECC memory (ECC mode) support varies by CPU. The maker lists no non-ECC mode qualifier for the board, so it counts as ECC.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026The page says ECC support depends on the CPU.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: support for ECC unbuffered DIMM (operate in non-ECC mode) and for non-ECC unbuffered DIMM.

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

Not available

Expansion slots

3 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.

AASUS TUF GAMING B550-PLUS WIFI II

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

Source1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Ryzen 5000 and 3000: 1 x PCIe 4.0 x16 slot at x16. Ryzen 5000 G and 4000 G: the same slot runs at PCIe 3.0. B550 chipset: 1 x PCIe 3.0 x16 slot (PCIEX16_2) at x4 and 3 x PCIe 3.0 x1 slots. PCIEX16_2 runs at x1 when any x1 slot is occupied. The Ryzen 5000 value is stored.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

BGIGABYTE Z790 AORUS ELITE AX

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: CPU PCIEX16 supports PCIe 5.0 and runs at x16. Chipset PCIEX4_1 is an x16 slot supporting PCIe 4.0 at x4, and PCIEX4_2 is an x16 slot supporting PCIe 3.0 at x4.

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

2=CalculatedFrom Expansion slots

3=CalculatedFrom Expansion slots

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

4=CalculatedFrom Expansion slots

5=CalculatedFrom Expansion slots

Storage

2 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.

AASUS TUF GAMING B550-PLUS WIFI II

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M.2_1	4	4	CPU	M.2 22110	Yes	Yes	Not available
M.2_2	3	4	Chipset	M.2 22110	Yes	Yes	SATA6G_56 is disabled when M.2_2 is populated

Source1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary and item 6 of the board overview. M.2_1 is a Key M slot for 2242/2260/2280/22110 with PCIe 4.0 x4 and SATA modes on Ryzen 5000 and 3000 (PCIe 3.0 x4 on the G-Series). M.2_2 takes the same lengths with PCIe 3.0 x4 and SATA modes from the B550 chipset. M.2_2 shares bandwidth with SATA6G_56, which is disabled when M.2_2 is populated. The specification lists a single aluminum M.2 heatsink.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 20266Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 2026The page copy says dual M.2 heatsinks.9Retailer pagemaxmybuild.com/motherboards/asus-tuf-gaming-b550-plus-wifi-iiRead 15 October 2026Lists heatsinks on all M.2 slots. The maker's product photo shows a heatsink plate over each of the two M.2 slots.

BGIGABYTE Z790 AORUS ELITE AX

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink	Shares lanes with
M2A_CPU	4	4	CPU	M.2 22110	No	Yes	Not available
M2P_SB	4	4	Chipset	M.2 22110	No	Yes	Not available
M2Q_SB	4	4	Chipset	M.2 22110	No	Yes	Not available
M2M_SB	4	4	Chipset	M.2 22110	Yes	Yes	SATA3 2 and SATA3 3 are unavailable when a PCIe SSD is in M2M_SB

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2 and 2-8: M2A_CPU on the CPU, M2P_SB and M2Q_SB on the chipset, each PCIe 4.0 x4/x2 for 22110/2280 SSDs. M2M_SB on the chipset takes PCIe 4.0 x4 or SATA SSDs. The 2-8 table: a PCIe SSD in M2M_SB turns off SATA3 2 and SATA3 3. Only M2M_SB takes M.2 SATA SSDs. The heatsinks are from Tech4Gamers and Geizhals.2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: 3 M.2 M-key PCIe 4.0 x4 (22110/2280) and 1 M.2 M-key PCIe 4.0 x4/SATA (22110/2280). 4 passive M.2 heatsinks.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: a thicker silver M.2 thermal guard on the top slot, which is the only slot wired to the CPU, and a single low-profile cover over the other three.

M.2 slots

2=CalculatedFrom M.2 storage slots

4=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

0=CalculatedFrom M.2 storage slots

0=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.

61Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: 6 x SATA 6Gb/s ports. SATA6G_56 is disabled when M.2_2 is populated.

61Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 6 x SATA 6Gb/s connectors for Z790 AORUS ELITE AX (the DDR4 AX model has 4).

Rear ports

3 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.

AASUS TUF GAMING B550-PLUS WIFI II

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 2	1	10
USB-A	USB 3.2 Gen 2	1	10
USB-A	USB 3.2 Gen 1	4	5
USB-A	USB 2.0	2	0.48
DisplayPort	DisplayPort 1.2	1	Not available
HDMI	HDMI 2.1	1	Not available
Ethernet (RJ45)	Not available	1	2.5
3.5 mm audio	Not available	5	Not available
Optical S/PDIF	Not available	1	Not available

Source1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Back panel I/O: 2 USB 3.2 Gen 2 ports (1 Type-A and 1 Type-C), 4 USB 3.2 Gen 1 Type-A, 2 USB 2.0 Type-A, 1 DisplayPort (DisplayPort 1.2), 1 HDMI (HDMI 2.1, 4K@60Hz), 1 Realtek 2.5Gb Ethernet port, 5 audio jacks, 1 optical S/PDIF out, 1 ASUS Wi-Fi module and the BIOS FlashBack button. The page does not state DisplayPort Alt Mode for the Type-C port.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

BGIGABYTE Z790 AORUS ELITE AX

Type	Version	Count	Max link rate (Gbps)
USB-C	USB 3.2 Gen 2x2	1	20
USB-A	USB 3.2 Gen 2	2	10
USB-A	USB 3.2 Gen 1	3	5
USB-A	USB 2.0	4	0.48
HDMI	HDMI 2.1	1	Not available
DisplayPort	DisplayPort 1.2	1	Not available
Ethernet (RJ45)	Not available	1	2.5
3.5 mm audio	Not available	2	Not available
Optical S/PDIF	Not available	1	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2 back panel: 1 USB Type-C (USB 3.2 Gen 2x2), 2 USB 3.2 Gen 2 Type-A (red), 3 USB 3.2 Gen 1, 4 USB 2.0/1.1, 2 SMA antenna connectors, 1 HDMI 2.0, 1 DisplayPort, 1 RJ-45, 1 optical S/PDIF out, 2 audio jacks. The 3 Gen 1 ports are Type-A per Profesional Review. HDMI is stored as 2.1 from Geizhals, see that source. DisplayPort 1.2 is from the onboard graphics text. USB 2.0 is stored as 0.48 Gbps.2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals external ports: 1 DisplayPort 1.2, 1 HDMI 2.1 TMDS, 1 USB-C 20 Gb/s, 2 USB-A 10 Gb/s, 3 USB-A 5 Gb/s, 4 USB-A 2.0, 1 S/PDIF out, 2 audio jacks, 1 RJ-45 2.5G. The launch manual says HDMI 2.0 and the manual of the white ICE model says HDMI 2.1.

Rear USB ports

8=CalculatedFrom Rear ports

10=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Fastest rear USB port

10Gbps=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

2 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.

AASUS TUF GAMING B550-PLUS WIFI II

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

Source1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 1 USB 3.2 Gen 1 header for 2 additional ports and 2 USB 2.0 headers for 4 additional ports. A Thunderbolt header for an add-in card is not a USB header.

BGIGABYTE Z790 AORUS ELITE AX

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 manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 1 USB Type-C header with USB 3.2 Gen 2 support, 1 USB 3.2 Gen 1 header (2 ports) and 2 USB 2.0/1.1 headers (4 ports).2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: 1 USB 3.1 Key-A header (10 Gb/s, 1 USB-C), 1 USB 3.0 20-pin header (5 Gb/s, 2 USB-A) and 2 USB 2.0 9-pin headers (4 USB-A).

Front USB-C header speed

Not available

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 1 CPU fan, 1 CPU OPT fan, 1 AIO pump and 3 chassis fan headers, all 4-pin.

61Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 1 CPU fan header, 1 CPU fan/water cooling pump header, 3 system fan headers and 1 system fan/water cooling pump header.2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals: 1 CPU fan, 1 CPU fan/pump, 3 fans and 1 fan/pump header.

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.

21Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 2 x AURA Addressable Gen 2 headers.

21Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 2 x addressable LED strip headers (D_LED1, D_LED2, 5 V).

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.

21Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 2 x AURA RGB headers.

21Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: 2 x RGB LED strip headers (LED_C1, LED_C2, 12 V).

Networking

4 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 RTL81254Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/helpdesk_downloadRead 15 October 2026Driver list: Realtek RTL8125 LAN driver. The spec page says Realtek 2.5Gb Ethernet. Retailers write RTL8125B. The suffix is left out.6Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 20262.5G Ethernet, Realtek RTL8125B.7Retailer pageinet.se/produkt/1903695/asus-tuf-gaming-b550-plus-wifi-iiRead 15 October 2026LAN chip: Realtek RTL8125B 2.5G.

Realtek RTL81251Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: Realtek 2.5GbE LAN chip. The chip family is from Tech4Gamers and Profesional Review (RTL8125B or RTL8125BG).3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: Realtek RTL8125BG 2.5GbE chip.4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Review: 2.5 Gbps LAN with a Realtek RTL8125B.

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.

Yes1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Back panel I/O lists 1 x ASUS Wi-Fi module and the package has 2x2 Wi-Fi antennas.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: Intel Wi-Fi 6E AX211, WIFI a/b/g/n/ac/ax on 2.4/5/6 GHz, Bluetooth 5.3, 11ax 160 MHz and up to 2.4 Gbps.

Wi-Fi standard

Wi-Fi 61Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: 2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax).2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

Wi-Fi 6E1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026

Wi-Fi bandsiBands the installed module supports.

2.4 GHz, 5 GHz1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: supports the 2.4/5GHz frequency band. No 6 GHz band.

2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026

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

160MHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: support for the 11ax 160 MHz wireless standard.

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.

5.21Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: Bluetooth v5.2, which needs Windows 11 or later.2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026Bluetooth v5.2, which needs Windows 11 or later. The page repeats the manual.

5.31Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: Bluetooth 5.3. GIGABYTE's later manuals for sibling white models list the same for both PCB revisions.

Audio

1 of 2 differ

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

Realtek ALCS1200A6Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 2026Realtek ALC S1200A, 7.1 HD audio. Written ALCS1200A as Realtek names the part. The maker names only a Realtek 7.1 codec.7Retailer pageinet.se/produkt/1903695/asus-tuf-gaming-b550-plus-wifi-iiRead 15 October 2026Audio chip: Realtek ALC S1200A.

Not available

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

3 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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Back panel I/O lists the BIOS FlashBack button. EZ DIY lists the BIOS FlashBack button and LED.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Q-Flash Plus button on the board (section 2-7) with a dedicated USB port on the rear 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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Internal connectors: 1 x Clear CMOS header. The back panel list has only the BIOS FlashBack button.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-7: CLR_SW is a Clear CMOS button on the board. The rear panel list has no button.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Q-Design lists Q-LED with four status LEDs (CPU, DRAM, VGA, boot device). No Q-Code display is listed.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-7: four status LEDs (CPU, DRAM, VGA, BOOT). No two-digit display. Tech4Gamers also says there is no debug LED.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026The manual lists the power button only as the 2-pin PWRSW pin on the system panel header. The layout has no power or start button on the board.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-7: the RST_SW reset button lets users quickly turn on or off the computer in an open-case environment.2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals buttons: internal Clear CMOS, power, reset and Q-Flash Plus buttons.

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 manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Specifications summary: 256 Mb Flash ROM, UEFI AMI BIOS. Dual BIOS is not stated.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026Section 2-2: BIOS is 1 x 256 Mbit flash. Dual BIOS is not stated.

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

No1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026The package contents list 1 x I/O Shield as a loose item.

Yes2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals features: I/O shield integrated.

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.

Not available

Tool-free M.2 latch, PCIe slot release1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026M.2 EZ-Latch Plus clip, section 2-8. The PCIe release lever is from Tech4Gamers (EZ-Latch on the PCIe slot) and Profesional Review (extended release tabs). The manual says the M.2 heatsink is held by screws, and the Wi-Fi antenna uses SMA screw connectors.3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Review: EZ-Latch on the PCIe slot (extended locker) and EZ-Latch on the M.2 ports.4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Review: the PCIe 5.0 slot has extended release tabs. The M.2 SSD anchor is the EZ-Latch type.

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

66°C4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Profesional Review test of the VRM at stock under a CPU stress test: Core i9-13900K, Corsair H150i ELITE LCD, open bench, BIOS F3g, PL2 unlimited so the CPU drew up to 300 W. The HWiNFO VRM sensor read 66 C. A FLIR One camera read 59 C on the outside of the VRM and 28 C at idle. The ambient temperature and test duration are not stated. The review lists the Z790 AORUS MASTER in its test bench table, which looks like a copy error. Tech4Gamers measured about 48 C with a thermal camera on an i7-12700K at about 170 W (Cinebench R23, 30 minutes, ambient 30 C). That figure is not stored.

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 TUF GAMING B550-PLUS WIFI II motherboard, 2 x SATA 6Gb/s cables, 1 x I/O Shield, 1 x M.2 Rubber package, 1 x M.2 SSD screw package, 1 x TUF Gaming sticker, 1 x ASUS 2x2 dual-band Wi-Fi moving antennas, 1 x Support DVD, 1 x TUF Certification card, 1 x User manual1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026Package contents on page vi of the manual.

1 x Wi-Fi antenna, 2 x SATA cables, 1 x G Connector, M.2 SSD screws, Paper leaflet3Reviewtech4gamers.com/gigabyte-z790-aorus-elite-ax-motherboardRead 15 October 2026Accessories: 1 motherboard, 1 Wi-Fi antenna, 2 SATA cables, 1 front panel G Connector, 1 paper leaflet. No user manual. Profesional Review adds SSD installation screws.4Reviewprofesionalreview.com/2022/12/17/z790-aorus-elite-ax-review/ampRead 15 October 2026Package: board, external Wi-Fi antenna, 2 SATA 6 Gbps cables, SSD installation screws and F-panel adapter.

Links

Not compared

Product page

www.asus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii3Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-iiRead 15 October 2026

www.gigabyte.com/Motherboard/Z790-AORUS-ELITE-AX-rev-1x9Maker product pagegigabyte.com/Motherboard/Z790-AORUS-ELITE-AX-rev-1xRead 15 October 2026The GIGABYTE page for rev. 1.x. gigabyte.com blocks agents, so the page was not read and no value comes from it.

Spec sheet

www.asus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspec2Maker product pageasus.com/motherboards-components/motherboards/tuf-gaming/tuf-gaming-b550-plus-wifi-ii/techspecRead 15 October 2026

Not available

Manual

dlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdf1Owner's manualdlcdnets.asus.com/pub/ASUS/mb/SocketAM4/TUF_GAMING_B550-PLUS_WIFI_II/E22526_TUF_GAMING_B550-PLUS_WI-FI_II_V2_WEB.pdfRead 15 October 2026ASUS user's manual E22526, English edition, revision V2, 2023-09-19 on the ASUS support site. The first edition E18578 is dated September 2021.

www.trovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_z790_aorus_elite_ax.pdfRead 15 October 2026GIGABYTE User's Manual Rev. 1001 (2022) for Z790 AORUS ELITE AX, Z790 AORUS ELITE and the two DDR4 models, hosted by trovaprezzi.it. gigabyte.com blocks agents. Features marked for the DDR5 models with an AX are the ones used. Newer manual revisions were not readable for the black board.

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

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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.

3years6Retailer pagescan.co.uk/products/asus-tuf-gaming-b550-plus-wifi-ii-amd-b550-am4-ddr4-pcie-40-sata3-dual-m2-crossfire-usb-32-gen2-apluRead 15 October 202636 months, return to base, for the UK market.7Retailer pageinet.se/produkt/1903695/asus-tuf-gaming-b550-plus-wifi-iiRead 15 October 2026Inet is a Swedish shop and lists a 3-year manufacturer warranty.8Retailer pageoffice-partner.de/asus-tuf-gaming-b550-plus-wifi-ii-mainboard-sockel-ryzen-am4-20131627Read 15 October 20263 years manufacturer warranty on a German shop page.

3years2Spec databasegeizhals.de/gigabyte-z790-aorus-elite-ax-a2819887.htmlRead 15 October 2026Geizhals warranty field: 3 years, German and Austrian listing.

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