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    GeForce GTX 680M vs Radeon R9 M390X

    When choosing between GeForce GTX 680M and Radeon R9 M390X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce GTX 680M and Radeon R9 M390X.
    GeForce GTX 680M Check Price
    Radeon R9 M390X Check Price

    GeForce GTX 680M and Radeon R9 M390X are Laptop Graphics Cards

    Note: GeForce GTX 680M 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 GeForce GTX 680M or Radeon R9 M390X here:

    GeForce GTX 680M Laptops
    Radeon R9 M390X Laptops

    Main Specs

      GeForce GTX 680M Radeon R9 M390X
    Power consumption (TDP) 100 Watt 100 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs No outputs
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    • Both graphics cards have the same power consumption of 100 Watt.
    • GeForce GTX 680M is connected by MXM-B (3.0), and Radeon R9 M390X uses PCIe 3.0 x16 interface.
    • GeForce GTX 680M and Radeon R9 M390X have maximum RAM of 4 GB.
    • Both cards are used in Laptops.
    • GeForce GTX 680M is build with Kepler architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of Radeon R9 M390X is 3 MHz higher, than GeForce GTX 680M.
    • GeForce GTX 680M and Radeon R9 M390X are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 16−18 21−24
    ultra / 1080p 9−10 12−14
    QHD / 1440p 4−5 8−9
    4K / 2160p 4−5 5−6
    low / 720p 30−35 40−45
    medium / 1080p 20−22 27−30
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 42% more, than GeForce GTX 680M.

    Full Specs

      GeForce GTX 680M Radeon R9 M390X
    Architecture Kepler GCN 3
    Code name N13E-GTX Amethyst (XT) / Tonga
    Type Laptop Laptop
    Release date 4 June 2012 9 June 2015
    Pipelines 1344 2048
    Core clock speed 720 MHz 723 MHz
    Boost Clock 758 MHz
    Transistor count 3,540 million 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 80.6 billion/sec 92.54
    Floating-point performance 2,038 gflops 2,961 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 1800 MHz
    Memory bandwidth 115.2 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 6.3
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126 +
    CUDA +
    FreeSync +
    CUDA cores 1344
    Bus support PCI Express 3.0 PCIe 3.0
    SLI options +
    Bitcoin / BTC (SHA256) 100 Mh/s
    Laptop size large large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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