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    Quadro P620 vs Radeon R9 M390X

    If you are going to buy a new graphics card and are choosing between Quadro P620 and Radeon R9 M390X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Quadro P620 stacks up against Radeon R9 M390X, check out specs charts below.
    Quadro P620 Check Price
    Radeon R9 M390X Check Price

    Radeon R9 M390X is a Laptop Graphics Card

    Note: Radeon R9 M390X 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 Radeon R9 M390X here:

    Radeon R9 M390X Laptops

    Main Specs

      Quadro P620 Radeon R9 M390X
    Power consumption (TDP) 40 Watt 100 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors 4x mini-DisplayPort No outputs
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    • Radeon R9 M390X has 150% more power consumption, than Quadro P620.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Quadro P620 and Radeon R9 M390X have maximum RAM of 4 GB.
    • Quadro P620 is used in Desktops, and Radeon R9 M390X - in Laptops.
    • Quadro P620 is build with Pascal architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of Quadro P620 is 454 MHz higher, than Radeon R9 M390X.
    • Quadro P620 is manufactured by 14 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

    Game benchmarks

    high / 1080p 18−20 21−24
    ultra / 1080p 10−12 12−14
    QHD / 1440p 5−6 8−9
    4K / 2160p 4−5 5−6
    low / 720p 35−40 40−45
    medium / 1080p 21−24 27−30
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 25% more, than Quadro P620.

    Full Specs

      Quadro P620 Radeon R9 M390X
    Architecture Pascal GCN 3
    Code name GP107 Amethyst (XT) / Tonga
    Type Workstation Laptop
    Release date 27 May 2019 9 June 2015
    Pipelines 512 2048
    Core clock speed 1177 MHz 723 MHz
    Boost Clock 1442 MHz
    Transistor count 3,300 million 5,000 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 43.33 92.54
    Floating-point performance 1,490 gflops 2,961 gflops
    Length 145 mm
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 6000 MHz
    Memory bandwidth 80.13 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 (12_1)
    Shader Model 6.4 6.3
    OpenGL 4.6 4.4
    OpenCL 1.2 Not Listed
    Vulkan 1.2.131 +
    CUDA 6.1
    FreeSync +
    Bus support PCIe 3.0
    Laptop size large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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