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GIGABYTE B550M K vs GIGABYTE B650M AORUS ELITE AX

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Product A: GIGABYTE

B550M K

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Product B: GIGABYTE

B650M AORUS ELITE AX

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Only differences

AGIGABYTE B550M K

BGIGABYTE B650M AORUS ELITE AX

General

2 of 9 differ

Series

Not available

AORUS1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026AORUS is the GIGABYTE brand line in the name. The manual links the board's AORUS product page.

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

B550M K1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The manual cover names the model B550M K. The product page lists revisions 1.0, 1.1 and 1.2 under the same name.

B650M AORUS ELITE AX1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026The manual cover lists B650M AORUS ELITE AX. GIGABYTE publishes no separate part number. The maker's web page lists revisions 1.0/1.1, 1.2, 1.3 and 1.4.

GTIN / EAN

4719331852764, 8895230360064Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026Product data sheet for the part B550M K, publication date 24-SEP-2024, barcodes 4719331852764 and 889523036006. Amazon and BuildCores list the same UPC, and several retailers list the same EAN.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026Item details: UPC 889523036006.8Spec databasebuildcores.com/products/Motherboard/x8q2g3bog/Gigabyte-B550M-K-AM4-DDR4-Micro-ATXRead 15 October 2026UPC 889523036006 and EAN 4719331852764. BuildCores also lists EANs 4719331880811 and 4719331805654, which no other source confirms, so they are not stored.

4719331849399, 8895230337843Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026Amazon US item details list UPC 889523033784. The EAN 4719331849399 is from the manua.ls spec page and a shop URL.8Spec databasemanua.ls/gigabyte/b650m-aorus-elite-ax/manualRead 16 October 2026Spec page lists EAN 4719331849399 and 889523033784.

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

Not available

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Status

Available5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The page showed the board In Stock on 2026-10-15. Best Sellers Rank was 18 in Computer Motherboards.

Available3Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026In stock on 2026-10-16, ranked 1 in Computer Motherboards.

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

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

Not available

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

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

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ColoursiThe maker's own colour names

Not available

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

Mainstream4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026The data sheet title names no gaming or creator use. Its tagline reads AMD B550 Ultra Durable. The board is not in a GIGABYTE AORUS, GAMING or EAGLE line, so it is stored as mainstream.

Gaming3Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026Amazon item type name: Gaming Desktop Motherboard. The product image box reads GAMING MOTHERBOARD. Amazon also prints a 5 year warranty with online registration, which is not the base term.

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

Not available

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Platform

3 of 4 differ

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

AM41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: AMD Socket AM4.

AM51Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: Chipset AMD B550.

AMD B6501Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 lists AMD Ryzen 5000 G-Series, 5000 Series, 4000 G-Series and 3000 Series Processors and refers to GIGABYTE's website for the latest CPU support list. The Rev. 1102 manual adds Ryzen 3000 G-Series, which LDLC says rev. 1.0 boards do not support (3200G and 3400G), so only the four series both manuals list are stored. The list was read on 2026-10-15.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026GIGABYTE User's Manual Rev. 1102, copyright 2026, for B550M K WIFI6E and B550M K, linked from a Russian retailer's page for rev. 1.2. Section 2-2 lists Ryzen 5000 G-Series, 5000, 4000 G-Series, 3000 G-Series and 3000 Series. The four series that rev. 1.0 also lists are stored.

AMD Ryzen 9000 Series, AMD Ryzen 8000 Series, AMD Ryzen 7000 Series2Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026The shop copies the GIGABYTE specification of rev. 1.3 (factory BIOS F31): AMD Socket AM5 with Ryzen 7000, 8000 and 9000 Series processors.3Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026Bullet: Supports AMD Ryzen 9000/Ryzen 8000/Ryzen 7000 Series processors.

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

Yes6Maker product pageamd.com/en/products/processors/chipsets/am4.htmlRead 15 October 2026AMD's AM4 chipset specifications table, B550 row: Overclocking Enabled: Yes. This is the chipset maker's feature, not a board spec. The board's BIOS options were not checked.

Yes10Press articletomshardware.com/features/x670-motherboard-overviewRead 16 October 2026AMD X670/B650 launch overview: the B650E and B650 chipsets both support overclocking the processor and memory. This is the chipset maker's feature, not a board spec.

Board

2 of 5 differ

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

Micro-ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: Micro ATX Form Factor, 24.4cm x 24.4cm.

Micro-ATX1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026

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.

Width244Height244mm(9.6 × 9.6 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 24.4cm x 24.4cm, stored as 244 mm by 244 mm.

Width244Height244mm(9.6 × 9.6 in)1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: Micro ATX form factor, 24.4 cm x 24.4 cm.

PCB layersiCopper layers in the circuit board as published.

Not available

83Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026Bullet: 8-Layer 2X Copper PCB.4Retailer pagealfrensia.com/en/product/gigabyte-b650m-aorus-elite-ax-motherboardRead 16 October 2026Same copy: 8-Layer 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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The section 1-1 layout and the section 2-7 connector list show the usual front-side power, fan and USB connectors.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026The section 2-7 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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete Specifications list names no lighting on the board and no LED feature. The internal connector list has no RGB or ARGB header.

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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.

3+35Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The GIGABYTE-branded listing says Digital 3+3 VRM Design in its bullets and 3+3 Power Phase in its title. GIGABYTE's own specification page and manuals give no phase count. A 4+3 count in an unreliable review and a 5+3 count on one retailer page disagree. The board photo on this page shows six output chokes beside the CPU socket, so the phases may be doubled and no Vcore stage count is stored.

12+2+23Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026Title and bullet: Twin 12+2+2 Phases Digital VRM Solution. The launch store page and the HelloExpress review say 12+2+1.7Reviewcgmagonline.com/review/hardware/gigabyte-b650m-aorus-elite-ax-motherboard-reviewRead 16 October 2026Review of 2024-07-27: a 12+2+2 phase digital VRM design.

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.

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123Retailer pageamazon.com/dp/B0BH6XND27Read 16 October 2026The first number of the maker's layout is 12. The OverClocking Page review counts 6 Vcore phases with two stages each, which also gives 12 stages.

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

Not available

60A4Retailer pagealfrensia.com/en/product/gigabyte-b650m-aorus-elite-ax-motherboardRead 16 October 2026The shop copies the older GIGABYTE page (Ryzen 7000 only, 128 GB): Twin 12+2+1 Digital VRM Design, 60A Smart Power Stage, with the footnote that the power stage current capacity is based on the VCORE phase. The rev. 1.3 and 1.4 pages were not readable, so 60 A is carried over from this older text.

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

Infineon XDPE192C3B5Reviewtheoverclockingpage.com/2023/03/02/review-gigabyte-b650m-aorus-elite-ax-an-excellent-and-afordable-am5-motherboardRead 16 October 2026The review of a rev. 1.1 board with BIOS F3c names the Infineon XDPE192C3B PWM controller with onsemi NCP303160 power stages (60 A) and counts the Vcore as 6 phases with two stages each.6Reviewhelloexpress.net/gigabyte-b650m-aorus-elite-ax-overviewRead 16 October 2026The PWM controller is an Infineon XDPE192C3B, stated for a 12+2+1 twin digital power stage design.

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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Internal Connectors: 1 x 24-pin ATX main power connector and 1 x 8-pin ATX 12V power connector.

8 pin1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 1 x 24-pin ATX main power connector and 1 x 8-pin ATX 12V power connector.

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_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has only the 24-pin and 8-pin ATX 12V connectors, so there is no extra slot power connector.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2 internal connector list has no extra slot power connector.

Memory

4 of 6 differ

Memory type

DDR41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x DDR4 DIMM sockets.

DDR51Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: DDR5.

Memory slotsiDIMM slots on the board.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x DDR4 DIMM sockets.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 4 x DDR5 DIMM sockets, dual channel.

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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: up to 128 GB (32 GB single DIMM capacity) of system memory.

256GB2Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026Same copy: 4 x DDR5 DIMM sockets supporting up to 256 GB (64 GB single DIMM capacity). The launch manual and older store pages say 128 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.

4,733MT/s3Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026The search excerpt of the specification page lists DDR4 4733 (O.C.) as the top memory speed and 3200, 2933, 2667, 2400 and 2133 for plain modules. Ryzen 5000 is the newest processor family the board lists. The manuals list only the plain speeds up to 3200, so the product page is used, as the field rule says.4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026Supported memory clock speed (max) 4733 MHz, with the list 2133 up to 4733 MHz. It is the data rate in MT/s.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026The listing's GIGABYTE infographic says DDR4 Overclocking up to 4733 MT/s.7Spec databasegeizhals.at/gigabyte-b550m-k-a2901610.htmlRead 15 October 2026RAM-Datenrate row: DDR4-3200 for Ryzen 3000 to 5000 and max. DDR4-4733 OC.

8,000MT/s2Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026Same copy: DDR5 8000(OC) down to 4400 MT/s, with no CPU family named. The launch manual lists 5200/4800/4400 and older store pages list 6666(OC). The highest value is stored with Ryzen 9000, the newest series the board lists.

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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 lists support for ECC Un-buffered DIMM 1Rx8/2Rx8 and non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 modules with no non-ECC mode qualifier. GIGABYTE's product page says ECC support varies by CPU, which still counts as true.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: support for non-ECC unbuffered DIMM modules only.

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

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Expansion slots

2 of 3 differ

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

AGIGABYTE B550M K

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 with Ryzen 5000 and 3000: 1 x PCI Express x16 slot from the CPU at PCIe 4.0 x16 (PCIe 3.0 x16 with Ryzen 5000 G-Series and 4000 G-Series) and 1 x PCI Express x1 slot from the chipset at PCIe 3.0 x1.

BGIGABYTE B650M AORUS ELITE AX

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: PCIEX16 is in the CPU and runs PCIe 4.0 at x16. PCIEX4 is a full-length slot on the chipset that runs PCIe 4.0 at x4. The rev. 1.3 spec copy states PCIe 4.0 x16 for Ryzen 7000 and a lower mode for Ryzen 8000 Phoenix CPUs. The M.2 socket of the Wi-Fi module (M2_WIFI) is not stored.

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

1=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.

4=CalculatedFrom Expansion slots

4=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.

AGIGABYTE B550M K

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M2A_CPU	4	4	CPU	M.2 2280	Yes	No
M2B_SB	3	2	Chipset	M.2 2280	No	No

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 with Ryzen 5000 and 3000. M2A_CPU is from the CPU, type 2280, SATA and PCIe 4.0 x4/x2 SSDs (PCIe 3.0 with 5000 G-Series and 4000 G-Series). M2B_SB is from the chipset, type 2280, PCIe 3.0 x2 SSDs, with no SATA mode listed. Section 2-7 item 6 shows both slots held by a clip and no heatsink. No lane sharing is stated.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 2-2 gives the same M2A_CPU and M2B_SB slots, types and speeds as the Rev. 1001 manual.

BGIGABYTE B650M AORUS ELITE AX

Slot	PCIe generation	PCIe lanes	Connected to	Longest drive	Takes SATA drives	Heatsink
M2A_CPU	5	4	CPU	M.2 22110	No	Yes
M2B_CPU	4	4	CPU	M.2 22110	No	Yes

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2 and 2-7 item 12: M2A_CPU takes PCIe 5.0 x4/x2 and M2B_CPU takes PCIe 4.0 x4/x2, both from the CPU. The rev. 1.3 spec copy lists 25110/22110/2580/2280 for M2A_CPU and 22110/2280 for M2B_CPU, so m2_22110 is stored. The manual says the board supports M.2 PCIe SSDs only and its table marks M.2 SATA as not supported on both slots. The motherboard heatsink covers both slots (see the HelloExpress and CGMag reviews).6Reviewhelloexpress.net/gigabyte-b650m-aorus-elite-ax-overviewRead 16 October 2026Both M.2 slots are cooled by the massive heatsink that spans nearly the entire width of the board. The CGMag review also describes heatsinks for the two M.2 slots.7Reviewcgmagonline.com/review/hardware/gigabyte-b650m-aorus-elite-ax-motherboard-reviewRead 16 October 2026Review of 2024-07-27: heatsinks for the two M.2 slots, one slot PCIe 5.0 x4 and the other PCIe 4.0 x4.

M.2 slots

2=CalculatedFrom M.2 storage slots

2=CalculatedFrom M.2 storage slots

PCIe 5.0 M.2 slots

0=CalculatedFrom M.2 storage slots

1=CalculatedFrom M.2 storage slots

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

41Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 4 x SATA 6Gb/s connectors from the chipset.

41Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 4 x SATA 6Gb/s connectors (SATA3 0 to 3).

Rear ports

4 of 5 differ

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

AGIGABYTE B550M K

Type	Version	Count	Max link rate (Gbps)
USB-A	USB 3.2 Gen 1	4	5
USB-A	USB 2.0	4	0.48
DisplayPort	DisplayPort 1.4	1	Not available
HDMI	HDMI 2.1	1	Not available
Ethernet (RJ45)	Not available	1	1
3.5 mm audio	Not available	3	Not available
PS/2	Not available	1	Not available

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Back Panel Connectors: 1 x PS/2 keyboard/mouse port, 1 x DisplayPort, 1 x HDMI port, 4 x USB 3.2 Gen 1 ports, 4 x USB 2.0/1.1 ports, 1 x RJ-45 port and 3 x audio jacks. The list has no button and no optical S/PDIF port. LAN is 1 Gbps. DisplayPort 1.4 (5120x2880 at 60 Hz) and HDMI 2.1 (4096x2160 at 60 Hz) work only with Ryzen 5000 G-Series and 4000 G-Series processors, which have integrated graphics.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 2-2 gives the same back panel list as the Rev. 1001 manual. Its LAN line adds 10 Mbps to 1 Gbps and 100 Mbps.

BGIGABYTE B650M AORUS ELITE AX

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

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2 back panel list: 1 USB-C (USB 3.2 Gen 2), 2 USB 3.2 Gen 2 Type-A (red), 5 USB 3.2 Gen 1, 4 USB 2.0/1.1, 1 DisplayPort (1.4), 1 HDMI, 1 RJ-45 (2.5 GbE), 2 audio jacks and 1 optical S/PDIF out. USB 2.0 is stored as 0.48 Gbps. This manual prints HDMI 2.0 for rev. 1.0/1.1. The HDMI 2.1 value is from the rev. 1.3 spec copy at logg.com.ar. The Q-Flash Plus button and the two SMA antenna connectors are not ports.2Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026Same copy: Support for HDMI 2.1 version and HDCP 2.3 on the 1 x HDMI port. The rest of the back panel list matches the manual.

Rear USB ports

8=CalculatedFrom Rear ports

12=CalculatedFrom Rear ports

Rear USB-C portsiIncludes Thunderbolt and USB4 ports.

0=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Fastest rear USB port

5Gbps=CalculatedFrom Rear ports

10Gbps=CalculatedFrom Rear ports

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

Not available

Not available

Internal connectors

5 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 B550M K

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	1	2

Source1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: 1 x USB 3.2 Gen 1 header and 1 x USB 2.0/1.1 header. Section 2-7 items 9 and 10: each header serves two ports through an optional bracket. No front USB-C header and no USB power output is stated.

BGIGABYTE B650M AORUS ELITE AX

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_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2 and 2-7: F_U320G (USB Type-C header, USB 3.2 Gen 2x2, one port), F_U32 (USB 3.2 Gen 1, two ports), F_USB1 and F_USB2 (USB 2.0/1.1, two ports each).

Front USB-C header speed

Not available

20Gbps=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.

21Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-2 Internal Connectors: 1 x CPU fan header and 1 x system fan header, both 4-pin.

61Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 1 CPU fan header (CPU_FAN), 1 water cooling CPU fan header (CPU_OPT), 3 system fan headers (SYS_FAN1 to 3) and 1 system fan/water cooling pump header (SYS_FAN4_PUMP).

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.

01Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has no ARGB header.

21Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 2 x addressable LED strip headers (D_LED1 and 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.

01Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The complete internal connector list has no RGB header.

31Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 2 x RGB LED strip headers (LED_C1 and LED_C2) and 1 x CPU cooler LED strip/RGB LED strip header (CPU_LED). All three are 4-pin 12 V headers in section 2-7, so 3 are counted.

Networking

8 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.

Not available

Realtek RTL81258Spec databasemanua.ls/gigabyte/b650m-aorus-elite-ax/manualRead 16 October 2026Spec page lists the LAN controller as Realtek RTL8125. GIGABYTE's spec states only a Realtek 2.5GbE LAN chip.

Ethernet ports

1=CalculatedFrom Rear ports

1=CalculatedFrom Rear ports

Ethernet speediFastest Ethernet port.

1Gbps=CalculatedFrom Rear ports

2.5Gbps=CalculatedFrom Rear ports

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

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The Specifications list has no Wireless section and the back panel list has no antenna connectors. The newer B550M K WIFI6E is a separate model.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: a wireless communication module is listed for the AX model, with two SMA antenna connectors on the back panel.

Wi-Fi standard

Not available

Wi-Fi 6E1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: Wi-Fi 6E, 802.11 a/b/g/n/ac/ax.

Wi-Fi bandsiBands the installed module supports.

Not available

2.4 GHz, 5 GHz, 6 GHz1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: 2.4/5/6 GHz carrier frequency bands.

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_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2: support for the 11ax 160 MHz wireless standard, for the MediaTek MT7922 and the Intel AX210 modules.

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

Realtek RTL8852CE2Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026Same copy: Realtek Wi-Fi 6E RTL8852CE (PCB rev. 1.2/1.3), 802.11 a/b/g/n/ac/ax on 2.4/5/6 GHz, 160 MHz.

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

Not available

5.32Retailer pagelogg.com.ar/ProductDetail/B650M-AORUS-ELITE-AX-rev13Read 16 October 2026Same copy: BLUETOOTH 5.3 for PCB rev. 1.2/1.3.

Audio

1 of 2 differ

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

Not available

Realtek ALC8975Reviewtheoverclockingpage.com/2023/03/02/review-gigabyte-b650m-aorus-elite-ax-an-excellent-and-afordable-am5-motherboardRead 16 October 2026The review names the Realtek ALC897. GIGABYTE's spec lists only Realtek Audio CODEC. The codec of rev. 1.3 and 1.4 is not checked against a document.6Reviewhelloexpress.net/gigabyte-b650m-aorus-elite-ax-overviewRead 16 October 2026The overview states the Realtek ALC897.7Reviewcgmagonline.com/review/hardware/gigabyte-b650m-aorus-elite-ax-motherboard-reviewRead 16 October 2026Review of 2024-07-27: the audio solution uses the Realtek ALC897 codec. The board revision is not stated.8Spec databasemanua.ls/gigabyte/b650m-aorus-elite-ax/manualRead 16 October 2026Spec page lists the audio chip as Realtek ALC897.

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

Not available

Not available

Features

4 of 7 differ

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

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The back panel list has no button. Q-Flash is a BIOS utility and needs a CPU and memory.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Q-Flash Plus button on the rear panel (section 2-6).

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_b550m_k_1_0.pdfRead 15 October 2026Section 2-7 item 13 is the CLR_CMOS jumper. The back panel list has no button.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-2 and 2-7: Clear CMOS is a jumper (CLR_CMOS). The only rear panel button is Q-Flash Plus.

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 manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The specifications and connector list name no two-digit display.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026The section 1-1 layout and 2-7 connector list show a debug port header for an add-in card and 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.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026The internal connector list and the section 1-1 layout name no power or start button on the board.

Yes1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 2-7 item 21: the RST_SW reset button quickly turns the computer on and off in an open-case environment.

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_b550m_k_1_0.pdfRead 15 October 2026Section 2-2: BIOS is 1 x 128 Mbit flash with a licensed AMI UEFI BIOS. Dual BIOS is not named.

No1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 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.

Not available

Yes4Retailer pagealfrensia.com/en/product/gigabyte-b650m-aorus-elite-ax-motherboardRead 16 October 2026Same copy lists Integrated I/O Shield. The box contents in the manual have no loose I/O shield.

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

Tool-free M.2 latch1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 2-7 item 6: pull the clip's tab out of the mounting hole, slide the M.2 SSD in, press it down and press the clip's tab into the mounting hole. No screw is used.

Tool-free M.2 latch, PCIe slot release4Retailer pagealfrensia.com/en/product/gigabyte-b650m-aorus-elite-ax-motherboardRead 16 October 2026Same copy: EZ-Latch for the PCIe x16 slot and M.2 connectors with quick release and screwless design. The M.2 EZ-Latch clip is also in manual section 2-7 item 12. The Wi-Fi antennas are SMA connectors, so no push-on antenna connector is stored.

Measured

None of 3 known

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

Not available

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.

SATA cable, User's Manual, I/O Shield1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026Section 1-2 box contents: B550M K motherboard, User's Manual, One SATA cable, I/O Shield, for reference only. The Rev. 1102 manual lists Two SATA cables, so the SATA cable count is not stored.2Owner's manualregard.ru/api/site/files/goodspdf/download/30802Read 15 October 2026Section 1-2: B550M K WIFI6E or B550M K motherboard, User's Manual, I/O Shield, Two SATA cables and One antenna (WIFI6E only). The older Rev. 1001 manual says One SATA cable.

User's Manual, 1 x antenna, 2 x SATA cables, 1 x M.2 screw1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026Section 1-3: motherboard, User's Manual, antenna (AX model only), two SATA cables and an M.2 screw. The manual says the actual items depend on the package.

Links

Not compared

Product page

www.gigabyte.com/Motherboard/B550M-K-rev-103Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026GIGABYTE product page for B550M K rev. 1.0. Revisions 1.1 and 1.2 have their own pages with the same name.

www.gigabyte.com/Motherboard/B650M-AORUS-ELITE-AX-rev-1411Maker product pagegigabyte.com/Motherboard/B650M-AORUS-ELITE-AX-rev-14Read 16 October 2026The page title appeared in web search results and in the job. gigabyte.com blocks agents, so the page was not read and its content is not used for any value.

Spec sheet

www.gigabyte.com/Motherboard/B550M-K-rev-10/sp3Maker product pagegigabyte.com/Motherboard/B550M-K-rev-10/spRead 15 October 2026The /sp page is GIGABYTE's specification page. It was read through a web search excerpt only.

www.gigabyte.com/Motherboard/B650M-AORUS-ELITE-AX-rev-14/sp11Maker product pagegigabyte.com/Motherboard/B650M-AORUS-ELITE-AX-rev-14Read 16 October 2026Specification tab of the same page at /sp. Not read for the same reason.

Manual

www.trovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_b550m_k_1_0.pdfRead 15 October 2026GIGABYTE B550M K User's Manual Rev. 1001, copyright 2023, 29 pages, hosted by trovaprezzi.it. It is the manual for rev. 1.0. A newer GIGABYTE manual, Rev. 1102 from 2026, covers B550M K and B550M K WIFI6E and is listed below.

www.trovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdf1Owner's manualtrovaprezzi.it/manuali/gigabyte_b650m_aorus_elite_ax.pdfRead 16 October 2026GIGABYTE User's Manual Rev. 1101 for B650M AORUS PRO AX, PRO, ELITE AX and ELITE, hosted by trovaprezzi.it. It is the launch manual for board rev. 1.0 and 1.1 and lists only Ryzen 7000. The newer manual Rev. 1401 is on download.gigabyte.com, which blocks agents.

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

Not available

Not available

Warranty

0 of 1 differ

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

3years4Retailer pageik.imagekit.io/pimberly/65707b38e31f5a94719d7ba0/4a6bea2c/66f2e2428f76e40019820f68/product-pdfRead 15 October 2026The data sheet from a European distributor feed gives Warranty period 3 year(s). The market is Europe. Amazon US says 3 Years Manufacturer.5Retailer pageamazon.com/dp/B0BTTZFQTPRead 15 October 2026Warranty Description: 3 Years Manufacturer, on the US page.7Spec databasegeizhals.at/gigabyte-b550m-k-a2901610.htmlRead 15 October 2026Garantie row: 3 Jahre. The market is Austria.

3years8Spec databasemanua.ls/gigabyte/b650m-aorus-elite-ax/manualRead 16 October 2026Spec page lists a 3 year warranty. GIGABYTE's press release and Amazon describe a 5 year term in North America with registration, which is not the base term.

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