Tested · Scored · RankedNEWinstax mini Evo 2 — full review & score →
Head to head · 2 products

MB PRIME A320M-K vs PRIME B450M-A II

Verified specs side by side. The green tick marks the better value on each measurable row.

Comparing 2 products
MB PRIME A320M-K
MB PRIME A320M-K—Score pending
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PRIME B450M-A II
PRIME B450M-A II—Score pending
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The short verdict

Scores pending

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

MB PRIME A320M-K
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PRIME B450M-A II
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Choose the MB PRIME A320M-K if
  • Lighter in the hand (800 vs 849 g)
Full specs →
PRIME B450M-A II
    Full specs →
    At a glance

    Key differences

    Measured differences only. Ties and tiny gaps are left out.
    Why pick theMB PRIME A320M-K1 win
    −49 gLighter in the hand800 vs 849 g
    Check priceNo store price yet
    Why pick thePRIME B450M-A II0 wins
    No measured advantages in our spec data. Check the full specs below.
    Check priceNo store price yet
    Full specs

    Side-by-side specifications

    Performance3 differences
    Compatible processor series
    AMD A · AMD Athlon · AMD Athlon™ X4
    AMD Ryzen 3000 Series
    Motherboard chipset
    AMD A320
    AMD B450
    Chipset
    AMD A320
    AMD B450
    Design1 difference
    Weight
    800 g
    849 g
    Connectivity6 differences
    HDMI ports quantity
    1
    1
    Hdmi Version
    1.4b
    2.0b
    Number of chassis fan connectors
    1
    2
    PS/2 ports quantity
    2
    1
    Supported memory clock speeds
    2133,2400,2666,2933,3200 MHz
    2133 · 2400 · 2666
    Supported storage drive interfaces
    M.2, PCI Express 3.0, SATA
    SATA III
    Windows operating systems supported
    Windows 10 Education x64 · Windows 10 Enterprise x64 · Windows 10 Home x64
    Windows 10 x64, Windows 7 x64
    Audio1 difference
    Audio output channels
    7.1 channels
    7.1+2 channels
    General6 differences
    BIOS memory size
    128 Mbit
    256 Mbit
    Component for
    PC
    PC
    ECC сompatibility
    ECC & Non-ECC
    ECC
    Ethernet LAN
    Yes
    Yes
    Manufacturer Sku
    90MB0TV0-M0EAY0
    90MB15Z0-M0EAY0
    Maximum internal memory
    32 GB
    128 GB
    Model Number
    MB PRIME A320M-K
    PRIME B450M-A II
    Number of memory slots
    2
    4
    Where to buy

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

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