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Best-value AM5 motherboards under £300 right now

The AM5 motherboards under £300 in stock on Amazon.co.uk, best value first. This list is generated from price, popularity and the specifications each Amazon listing states, not from hands-on testing.

Up to this budget the list takes in upper-range B850 and B650E boards and the entry X870 models. AMD requires USB4, a PCIe 5.0 graphics slot and a PCIe 5.0 M.2 slot on every X870 board, and 5 GbE networking and WiFi 7 turn up regularly. The extra money mostly buys connectivity and heavier power delivery rather than speed in games.

238 boards in stock in this band, the top 20 shown · prices last checked 20 Sep 2026, 02:43 BST

AM5 motherboards under £300, best value first
BoardPriceSavingWarehouseBuy
#1 ASUS TUF Gaming B850-PLUS WiFi AMD AM5 B850 ATX MotherboardAM5 · B850 · ATX · DDR5 · WiFi · first available Jan 2025 (1 yr 8 mo old)WiFi 7 · 2.5GbE · 3× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · Amazon sales rank #97,861 · 38% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2025 (score 64.8 of 100)
£182.92as of 38% under its 90-day usualAmazon
#2 ASUS X870 MAX GAMING WIFI7 W AMD AM5 ATX MotherboardAM5 · X870 · ATX · DDR5 · WiFi · first available May 2025 (1 yr 4 mo old)WiFi 7 · 2.5GbE · 3× M.2 · PCIe 5.0 · USB4Why it ranks here: in stock · Amazon sales rank #96,374 · 22% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available May 2025 (score 64.8 of 100)
£264.55as of 22% under its 90-day usualAmazon
#3 ASUS B850 MAX Gaming WiFi WAM5 · B850 · ATX · DDR5 · WiFi · first available Nov 2025 (10 mo old)WiFi 6E · 2.5GbE · 3× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · 23% under its usual 90-day price · WiFi 6E · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Nov 2025 (score 64.0 of 100)
£224.03as of 23% under its 90-day usualAmazon
#4 Gigabyte B850I AORUS PRO Motherboard Lowest we've recordedAM5 · B850 · Mini-ITX · DDR5 · WiFi · first available Jan 2025 (1 yr 8 mo old) · RRP £299.99WiFi 7 · 2.5GbE · 1× M.2 · PCIe 5.0 · 2 RAM slotsWhy it ranks here: in stock · Amazon sales rank #1,651 · 13% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2025 (score 63.8 of 100)
£192.99as of 13% under its 90-day usualAmazon
#5 MSI MAG X870E GAMING MAX WIFI MotherboardAM5 · X870E · ATX · DDR5 · WiFi · first available Jan 2026 (8 mo old) · RRP £249.99WiFi 7 · 5GbE · 3× M.2 · PCIe 5.0 · USB4Why it ranks here: in stock · Amazon sales rank #2,443 · 9% under its usual 90-day price · WiFi 7 · 5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Jan 2026 (score 62.8 of 100)
£199.99as of 9% under its 90-day usualAmazon
#6 ASUS EX-B850M-V7 AMD Micro-ATX Motherboard 30-day lowAM5 · B850 · Micro-ATX · DDR5 · first available Mar 2026 (6 mo old) · RRP £200.995GbE · 2× M.2 · PCIe 5.0 · USB-C 10GbpsWhy it ranks here: in stock · Amazon sales rank #1,413 · 17% under its usual 90-day price · 5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Mar 2026 (score 62.2 of 100)
£131.88as of 17% under its 90-day usualAmazon
#7 GIGABYTE X870 AORUS Elite X3D AMD AM5 ATX Motherboard Lowest we've recordedAM5 · X870 · ATX · DDR5 · WiFi · first available Feb 2026 (7 mo old)WiFi 7 · 5GbE · 4× M.2 · PCIe 5.0 · USB4Why it ranks here: in stock · Amazon sales rank #102,523 · 11% under its usual 90-day price · WiFi 7 · 5GbE LAN · 4 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Feb 2026 (score 61.6 of 100)
£239.74as of 11% under its 90-day usualAmazon
#8 GIGABYTE X870E Eagle X3D WF7 AMD AM5 ATX Motherboard Lowest we've recordedAM5 · X870E · ATX · DDR5 · WiFi · first available Feb 2026 (7 mo old)WiFi 7 · 5GbE · 4× M.2 · PCIe 5.0 · USB4Why it ranks here: in stock · Amazon sales rank #124,430 · 11% under its usual 90-day price · WiFi 7 · 5GbE LAN · 4 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Feb 2026 (score 61.2 of 100)
£249.07as of 11% under its 90-day usualAmazon
#9 GIGABYTE X870E AORUS ELITE X3D Motherboard Lowest we've recordedAM5 · X870E · ATX · DDR5 · WiFi · first available Sep 2025 (1 yr old) · RRP £762.99WiFi 7 · 5GbE · 4× M.2 · USB4 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #6,474 · 13% under its usual 90-day price · WiFi 7 · 5GbE LAN · 4 M.2 slots · first available Sep 2025 (score 60.4 of 100)
£259.99as of 13% less13% under its 90-day usualAmazon
#10 GIGABYTE B850 AORUS Stealth AMD AM5 ATX MotherboardAM5 · B850 · ATX · DDR5 · WiFi · first available Jan 2026 (8 mo old)WiFi 7 · 5GbE · 4× M.2 · PCIe 5.0 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #85,559 · 9% under its usual 90-day price · WiFi 7 · 5GbE LAN · 4 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2026 (score 60.1 of 100)
£249.87as of 9% under its 90-day usualAmazon
#11 ASRock B650M Pro X3D WiFi 6E AMD AM5 Micro-ATX Motherboard 90-day lowAM5 · B650 · Micro-ATX · DDR5 · WiFi · first available Jun 2025 (1 yr 3 mo old)WiFi 6E · 2.5GbE · 3× M.2 · PCIe 5.0 · 4 RAM slotsWhy it ranks here: in stock · 19% under its usual 90-day price · WiFi 6E · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jun 2025 (score 60.0 of 100)
£170.71as of 19% under its 90-day usualAmazon
#12 MAG B850 TOMAHAWK MAX WIFI II Lowest we've recordedAM5 · B850 · ATX · DDR5 · WiFi · first available Mar 2026 (6 mo old) · RRP £259.99WiFi 7 · 5GbE · 3× M.2 · PCIe 5.0 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #3,010 · 4% under its usual 90-day price · WiFi 7 · 5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Mar 2026 (score 57.3 of 100)
£229.99as of 4% under its 90-day usualAmazon
#13 ASUS TUF Gaming B650E-PLUS WiFi AMD B650 ATX MotherboardAM5 · B650E · ATX · DDR5 · WiFi · first available May 2025 (1 yr 4 mo old)WiFi 6E · 2.5GbE · 3× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · Amazon sales rank #197,385 · 16% under its usual 90-day price · WiFi 6E · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available May 2025 (score 57.0 of 100)
£195.30as of 16% under its 90-day usualAmazon
#14 GIGABYTE X870E EAGLE WIFI7 MotherboardAM5 · X870E · DDR5 · WiFi · first available Mar 2026 (5 mo old) · RRP £249.99WiFi 7 · 5GbE · 4× M.2 · PCIe 5.0 · USB4Why it ranks here: in stock · Amazon sales rank #29,374 · 10% under its usual 90-day price · WiFi 7 · 5GbE LAN · 4 M.2 slots · PCIe 5.0 M.2 · first available Mar 2026 (score 56.7 of 100)
£224.98as of 10% under its 90-day usualAmazon
#15 ASUS ROG Strix B850-I Gaming WiFi AMD Mini-ITX motherboard Lowest we've recordedAM5 · B850 · Mini-ITX · DDR5 · WiFi · first available Jan 2025 (1 yr 8 mo old) · RRP £375.76WiFi 7 · 2.5GbE · 2× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · Amazon sales rank #2,700 · 4% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2025 (score 55.6 of 100)
£246.98as of 3% less4% under its 90-day usualAmazon
#16 ASUS ROG Strix B850-F Gaming WiFi AMD motherboardAM5 · B850 · ATX · DDR5 · WiFi · first available Jan 2025 (1 yr 8 mo old) · RRP £375.76WiFi 7 · 2.5GbE · 4× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · Amazon sales rank #2,700 · WiFi 7 · 2.5GbE LAN · 4 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2025 (score 55.6 of 100)
£258.00as of Amazon
#17 TUF Gaming B850M-PLUS WIFI7 AMD B850 mATX MotherboardAM5 · B850 · Micro-ATX · DDR5 · WiFi · first available Oct 2025 (11 mo old)WiFi 7 · 2.5GbE · 3× M.2 · PCIe 5.0 · USB-C 20GbpsWhy it ranks here: in stock · Amazon sales rank #2,800 · 3% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Oct 2025 (score 55.5 of 100)
£219.54as of 3% under its 90-day usualAmazon
#18 GIGABYTE X870M AORUS ELITE WIFI7 Motherboard Lowest we've recordedAM5 · X870 · Micro-ATX · DDR5 · WiFi · first available Jul 2025 (1 yr 1 mo old) · RRP £299.99WiFi 7 · 2.5GbE · 2× M.2 · USB4 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #7,612 · 16% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 2 M.2 slots · first available Jul 2025 (score 55.0 of 100)
£240.99as of 16% under its 90-day usualAmazon
#19 ASUS TUF GAMING B850-PLUS WIFI AMD ATX motherboardAM5 · B850 · ATX · DDR5 · WiFi · first available Jan 2025 (1 yr 8 mo old) · RRP £308.42WiFi 7 · 2.5GbE · 3× M.2 · PCIe 5.0 · BIOS flashbackWhy it ranks here: in stock · Amazon sales rank #2,800 · 1% under its usual 90-day price · WiFi 7 · 2.5GbE LAN · 3 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · BIOS flashback · first available Jan 2025 (score 54.5 of 100)
£189.00as of 1% under its 90-day usualAmazon
#20 MSI PRO B850M-A WIFI PZ MotherboardAM5 · B850 · Micro-ATX · DDR5 · WiFi · first available Oct 2025 (10 mo old) · RRP £189.99WiFi 7 · 5GbE · 2× M.2 · PCIe 5.0 · 4 RAM slotsWhy it ranks here: in stock · Amazon sales rank #1,063 · WiFi 7 · 5GbE LAN · 2 M.2 slots · PCIe 5.0 graphics slot · PCIe 5.0 M.2 · first available Oct 2025 (score 53.9 of 100)
£189.95as of Amazon

Tick two to four boards, then compare them side by side.

How this list is made

Nobody at motherboarddeals.co.uk has tested these boards. The list is generated from the data we hold: the price on Amazon.co.uk, how well the board sells, and the specifications its Amazon listing states. A board has to be in stock and under the budget to appear. It then scores points for being in stock (10), for its Amazon sales rank (up to 30, on a sliding scale), for selling below its own usual price of the last 90 days (one point per percent, up to 20, once we hold two weeks of its price history), for the features its listing states (up to 30: WiFi generation, 2.5 GbE or faster networking, the number of M.2 slots, PCIe 5.0 and a BIOS flashback button) and for how recently it was first available (up to 10). The line under each board names the factors that counted for it. A feature the listing does not state scores nothing, so a good board with a thin listing can rank lower than it deserves, and CPU and board bundles are left out. The order is recalculated whenever prices are checked, roughly every six hours; nobody can pay to move up it. How we track motherboard prices explains where the numbers come from.

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