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    Quadro P400 vs Radeon R9 M390X

    When comparing Quadro P400 and Radeon R9 M390X, 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 P400 and Radeon R9 M390X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Quadro P400 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 P400 Radeon R9 M390X
    Power consumption (TDP) 30 Watt 100 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 3x mini-DisplayPort No outputs
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    • Radeon R9 M390X has 233% more power consumption, than Quadro P400.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon R9 M390X has 2 GB more memory, than Quadro P400.
    • Quadro P400 is used in Desktops, and Radeon R9 M390X - in Laptops.
    • Quadro P400 is build with Pascal architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of Quadro P400 is 505 MHz higher, than Radeon R9 M390X.
    • Quadro P400 is manufactured by 14 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

    Game benchmarks

    high / 1080p 7−8 21−24
    ultra / 1080p 4−5 12−14
    QHD / 1440p 0−1 8−9
    4K / 2160p − 5−6
    low / 720p 18−20 40−45
    medium / 1080p 9−10 27−30
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 160% more, than Quadro P400.

    Full Specs

      Quadro P400 Radeon R9 M390X
    Architecture Pascal GCN 3
    Code name GP107 Amethyst (XT) / Tonga
    Type Workstation Laptop
    Release date 7 February 2017 9 June 2015
    Pipelines 256 2048
    Core clock speed 1228 MHz 723 MHz
    Boost Clock 1252 MHz
    Transistor count 3,300 million 5,000 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 20.03 92.54
    Floating-point performance 679.9 gflops 2,961 gflops
    Length 145 mm
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 4008 MHz
    Memory bandwidth 32.06 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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