ASUS PRIME A520M-A II/CSM vs ASUS PRIME B550M-K

The short verdict

Scores pending

We haven’t scored these yet. Use the measured differences and full specs below.

PRIME A520M-A II/CSM

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PRIME B550M-K

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PRIME A520M-A II/CSM

Full specs →

PRIME B550M-K

Full specs →

At a glance

Key differences

Measured differences only. Ties and tiny gaps are left out.

Full specs

Side-by-side specifications

Performance3 differences

Compatible processor series

AMD Ryzen™ 3, AMD Ryzen™ 5

AMD Ryzen 3000 Series

Motherboard chipset

AMD A520

AMD B550

Chipset

AMD A520

AMD B550

Design1 difference

Weight

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785 g

Connectivity3 differences

Wi-Fi

HDMI ports quantity

Number of storage drives supported

Supported memory clock speeds

2133 · 2400 · 2666

Supported storage drive interfaces

M.2, SATA III

M.2, SATA

Windows operating systems supported

Windows 10 x64

Windows 10

General4 differences

BIOS memory size

128 Mbit

256 Mbit

Component for

Ethernet LAN

Yes

Manufacturer Sku

90MB17H0-M0EAYC

90MB14V0-M0EAY0

Model Number

PRIME A520M-A II/CSM

PRIME B550M-K

Number of M.2 (M) slots

Where to buy

Specs verified against manufacturer data. Prices in USD before tax; we may earn a commission from qualifying purchases.

Community

Which would you buy?

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PRIME A520M-A II/CSM vs PRIME B550M-K

Scores pending

Key differences

Side-by-side specifications

Which would you buy?