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AMD B550 Motherboards

All motherboards

12 AMD B550 motherboards from MSI, GIGABYTE, ASUS and more. Most cost $75 to $128, and half cost less than $113.

Top brands: GIGABYTE (5)MSI (4)

GIGABYTESpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Four RAM slots supporting DDR4 memory
+Two M.2 slots for fast storage
−No built-in Wi-Fi
$74.99-25%List: $99.99
as of 11/04/2026 15:07 PST - Details
ASUSSpec score 8.8

AM4, mATX, DDR4, 1 PCIe x16 slots

+Compact microATX form factor
+DDR4 memory with ECC support
+PCIe 4.0 support
−Single PCIe x16 slot limits graphics card expansion
$99.00-17%List: $119.99
as of 11/04/2026 12:09 PST - Details
GIGABYTESpec score 8.8

AM4, ATX, DDR4, 4 Memory slots

+ATX form factor with room for full-size expansion cards
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
$109.99-8%List: $119.99
as of 11/04/2026 15:07 PST - Details
ASRockSpec score 8.0

AM4, mATX, DDR4, 2 Memory slots

+Micro-ATX form factor fits compact builds
+Supports AMD Ryzen 3000, 4000 and 5000 processors
+Supports DDR4 memory with overclocking up to 4733 MHz
−Only two RAM slots limit total memory capacity
$69.99
as of 11/04/2026 12:09 PST - Details
GIGABYTESpec score 9.0

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 6 built in for wireless networking
+Four RAM slots supporting DDR4 memory
$126.00-19%List: $154.99
as of 11/04/2026 15:07 PST - Details
GIGABYTESpec score 8.9

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 6E built in for wireless networking
+Four RAM slots supporting DDR4 memory
$138.99-7%List: $149.99
as of 11/04/2026 15:07 PST - Details
MSISpec score 9.1

AM4, mATX, DDR4, 4 Memory slots

+Built-in Wi-Fi 6E for wireless networking
+Micro-ATX form factor fits smaller builds
+Four DDR4 slots for expanding memory
−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
$116.98
as of 11/04/2026 18:06 PST - Details
GIGABYTESpec score 8.9

AM4, mATX, DDR4, 4 Memory slots

+Micro-ATX size is compact for smaller cases
+Wi-Fi 5 built in for wireless networking
+Four RAM slots supporting DDR4 memory
No current price. Check it at the store.
ASUSSpec score 8.5

AM4, ATX, DDR4, 2 M.2 slots

+Supports AMD AM4 with 3rd Gen Ryzen processors
+DDR4 memory support
+PCIe 4.0 support
−Older AM4 platform
$128.99
as of 11/04/2026 12:09 PST - Details
MSISpec score 9.1

AM4, ATX, DDR4, 4 Memory slots

+Full ATX form factor with room for expansion
+Built-in Wi-Fi 6E for wireless networking
+Four DDR4 slots for expanding memory
−Uses older DDR4 memory rather than DDR5
−Only one PCIe x16 slot
$119.99
as of 11/04/2026 18:06 PST - Details
MSISpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Compact mATX form factor
+Four RAM slots for DDR4 memory
+AM4 socket supports AMD Ryzen 5000 and older series processors
−Only 1G LAN for wired networking
−Uses DDR4 memory rather than newer DDR5
$89.99
as of 11/04/2026 18:07 PST - Details
MSISpec score 8.7

AM4, mATX, DDR4, 4 Memory slots

+Two M.2 slots for fast NVMe storage
+Supports up to 128GB of memory
+Four DDR4 slots for expanding memory
No price recorded yet.

Compare specs

motherboardSocketForm factorMemory typeMemory slotsM.2 slotsSpec scorePrice
AM4mATXDDR4428.7$74.99
as of 11/04/2026 15:07 PST - Details
AM4mATXDDR428.8$99.00
as of 11/04/2026 12:09 PST - Details
AM4ATXDDR4428.8$109.99
as of 11/04/2026 15:07 PST - Details
AM4mATXDDR4218.0$69.99
as of 11/04/2026 12:09 PST - Details
AM4mATXDDR4429.0$126.00
as of 11/04/2026 15:07 PST - Details
AM4mATXDDR4428.9$138.99
as of 11/04/2026 15:07 PST - Details
AM4mATXDDR449.1$116.98
as of 11/04/2026 18:06 PST - Details
AM4mATXDDR4428.9No current price
AM4ATXDDR428.5$128.99
as of 11/04/2026 12:09 PST - Details
AM4ATXDDR449.1$119.99
as of 11/04/2026 18:06 PST - Details

Before you buy

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.