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Head to head · 2 products

Prime B450M-K II vs ROG STRIX B550-F GAMING

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

Comparing 2 products
Prime B450M-K II
Prime B450M-K II—Score pending
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ROG STRIX B550-F GAMING
ROG STRIX B550-F GAMING—Score pending
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View specs
The short verdict

Scores pending

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

Prime B450M-K II
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ROG STRIX B550-F GAMING
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Choose the Prime B450M-K II if
  • Lighter in the hand (840 vs 945 g)
Full specs →
ROG STRIX B550-F GAMING
    Full specs →
    At a glance

    Key differences

    Measured differences only. Ties and tiny gaps are left out.
    Why pick thePrime B450M-K II1 win
    −105 gLighter in the hand840 vs 945 g
    Check priceNo store price yet
    Why pick theROG STRIX B550-F GAMING0 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 Ryzen 2000 Series · AMD Ryzen Threadripper 1000 Series · AMD Ryzen Threadripper 2000 Series
    AMD Ryzen 3000 Series
    Motherboard chipset
    AMD B450
    AMD B550
    Chipset
    AMD B450
    AMD B550
    Design1 difference
    Weight
    840 g
    945 g
    Connectivity6 differences
    Wi-Fi
    No
    No
    Number of chassis fan connectors
    2
    3
    Number of SATA III connectors
    4
    6
    Supported memory clock speeds
    2133,2400,2666,2800,2933,3000,3200 MHz
    2133 · 2400 · 2666
    Supported storage drive interfaces
    M.2, PCI Express 3.0, SATA III
    M.2, SATA III
    USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantity
    3
    1
    Windows operating systems supported
    Windows 10 x64, Windows 7 x64
    Windows 10 · Windows 10 Education · Windows 10 Education x64
    General8 differences
    Component for
    PC
    PC
    Ethernet interface type
    Gigabit Ethernet
    2.5 Gigabit Ethernet
    Ethernet LAN
    Yes
    Yes
    Form Factor
    micro ATX
    ATX
    Manufacturer Sku
    90MB1600-M0EAY0
    90MB14S0-M0EAY0
    Maximum internal memory
    64 GB
    128 GB
    Model Number
    Prime B450M-K II
    ROG STRIX B550-F GAMING
    Motherboard form factor
    micro ATX
    ATX
    Number of memory slots
    2
    4
    PCI Express x16 (Gen 3.x) slots
    2
    1
    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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