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    Radeon HD 7970M Crossfire vs Radeon R9 M390X

    If you are going to buy a new graphics card and are choosing between Radeon HD 7970M Crossfire 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 Radeon HD 7970M Crossfire stacks up against Radeon R9 M390X, check out specs charts below.
    Radeon HD 7970M Crossfire Check Price
    Radeon R9 M390X Check Price

    Radeon HD 7970M Crossfire and Radeon R9 M390X are Laptop Graphics Cards

    Note: Radeon HD 7970M Crossfire and Radeon R9 M390X are only used in laptop graphics. They have 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 HD 7970M Crossfire or Radeon R9 M390X here:

    Radeon HD 7970M Crossfire Laptops
    Radeon R9 M390X Laptops

    Main Specs

      Radeon HD 7970M Crossfire Radeon R9 M390X
    Power consumption (TDP) 200 Watt 100 Watt
    Interface PCIe 3.0 x16
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors No outputs
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    • Radeon HD 7970M Crossfire has 100% more power consumption, than Radeon R9 M390X.
    • Both cards are used in Laptops.
    • Radeon HD 7970M Crossfire is build with GCN architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of Radeon HD 7970M Crossfire is 127 MHz higher, than Radeon R9 M390X.
    • Radeon HD 7970M Crossfire and Radeon R9 M390X are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 35−40 21−24
    ultra / 1080p 21−24 12−14
    QHD / 1440p 16−18 8−9
    4K / 2160p 10−11 5−6
    low / 720p 60−65 40−45
    medium / 1080p 40−45 27−30
    The average gaming FPS of Radeon HD 7970M Crossfire in Assassin's Creed Odyssey is 60% more, than Radeon R9 M390X.

    Full Specs

      Radeon HD 7970M Crossfire Radeon R9 M390X
    Architecture GCN GCN 3
    Code name Wimbledon XT Amethyst (XT) / Tonga
    Type Laptop Laptop
    Release date 1 May 2012 9 June 2015
    Pipelines 2560 2048
    Core clock speed 850 MHz 723 MHz
    Transistor count 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 92.54
    Floating-point performance 2,961 gflops
    Memory bus width 2x 256 Bit 256 Bit
    Memory clock speed 4800 MHz
    Memory bandwidth 160.0 GB/s
    Shared memory - -
    DirectX DirectX 11.1, Shader 5.0
    Shader Model 6.3
    OpenGL 4.4
    OpenCL Not Listed
    Vulkan +
    FreeSync +
    Bus support PCIe 3.0
    Laptop size large large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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