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    Quadro K620M vs Radeon HD 7970

    When comparing Quadro K620M and Radeon HD 7970, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Quadro K620M and Radeon HD 7970 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Quadro K620M Check Price
    Radeon HD 7970 Check Price

    Quadro K620M is a Laptop Graphics Card

    Note: Quadro K620M is only used in laptop graphics. It has lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Quadro K620M here:

    Quadro K620M Laptops

    Main Specs

      Quadro K620M Radeon HD 7970
    Power consumption (TDP) 30 Watt 300 Watt
    Interface MXM-A (3.0) PCIe 3.0 x16
    Supplementary power connectors None 1x 6-pin + 1x 8-pin
    Memory type DDR3 GDDR5
    Maximum RAM amount 2 GB 3 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 2x mini-DisplayPort
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    • Radeon HD 7970 has 900% more power consumption, than Quadro K620M.
    • Quadro K620M is connected by MXM-A (3.0), and Radeon HD 7970 uses PCIe 3.0 x16 interface.
    • Radeon HD 7970 has 1 GB more memory, than Quadro K620M.
    • Quadro K620M is used in Mobile workstations, and Radeon HD 7970 - in Desktops.
    • Quadro K620M is build with Maxwell architecture, and Radeon HD 7970 - with GCN.
    • Quadro K620M and Radeon HD 7970 are manufactured by 28 nm process technology.
    • Memory clock speed of Quadro K620M is 625 MHz higher, than Radeon HD 7970.

    Game benchmarks

    high / 1080p 3−4 35−40
    ultra / 1080p 1−2 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 14−16 60−65
    medium / 1080p 5−6 40−45
    The average gaming FPS of Radeon HD 7970 in Assassin's Creed Odyssey is 583% more, than Quadro K620M.

    Full Specs

      Quadro K620M Radeon HD 7970
    Architecture Maxwell GCN
    Code name GM108 Tahiti XT
    Type Mobile workstation Desktop
    Release date 1 March 2015 22 December 2011
    Pipelines 384 2048
    Core clock speed 1029 MHz
    Boost Clock 1124 MHz 925 MHz
    Transistor count 4,313 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98 118.4
    Floating-point performance 863.2 gflops 3,789 gflops
    Length 274 mm
    Memory bus width 64 Bit 384 Bit
    Memory clock speed 2000 MHz 1375 MHz
    Memory bandwidth 14.4 GB/s 264 GB/s
    Shared memory - -
    DirectX 12
    Shader Model 5 5.1
    OpenGL 4.5 4.6
    OpenCL 1.2 1.2
    Vulkan 1.1.126
    CUDA +
    FreeSync +
    Bus support PCIe 2.1 x16
    HDMI +
    Bitcoin / BTC (SHA256) 92 Mh/s 485 Mh/s
    Optimus +
    Eyefinity +
    Design reference
    CrossFire +
    Ethereum / ETH (DaggerHashimoto) 20.71 Mh/s
    Display Port 1.2
    nView Display Management +
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