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    GeForce GTX 870M vs Radeon R9 M390X

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 870M and Radeon R9 M390X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 870M and Radeon R9 M390X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GTX 870M Check Price
    Radeon R9 M390X Check Price

    GeForce GTX 870M and Radeon R9 M390X are Laptop Graphics Cards

    Note: GeForce GTX 870M 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 870M or Radeon R9 M390X here:

    GeForce GTX 870M Laptops
    Radeon R9 M390X Laptops

    Main Specs

      GeForce GTX 870M 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 6 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 870M is connected by MXM-B (3.0), and Radeon R9 M390X uses PCIe 3.0 x16 interface.
    • GeForce GTX 870M has 2 GB more memory, than Radeon R9 M390X.
    • Both cards are used in Laptops.
    • GeForce GTX 870M is build with Kepler architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of GeForce GTX 870M is 218 MHz higher, than Radeon R9 M390X.
    • GeForce GTX 870M and Radeon R9 M390X are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 16−18 21−24
    ultra / 1080p 10−11 12−14
    QHD / 1440p 4−5 8−9
    4K / 2160p − 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 27% more, than GeForce GTX 870M.

    Full Specs

      GeForce GTX 870M Radeon R9 M390X
    Architecture Kepler GCN 3
    Code name N15P-GT Amethyst (XT) / Tonga
    Type Laptop Laptop
    Release date 12 March 2014 9 June 2015
    Pipelines 1344 2048
    Core clock speed 941 MHz 723 MHz
    Boost Clock 967 MHz
    Transistor count 3,540 million 5,000 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 108.3 92.54
    Floating-point performance 2,599 gflops 2,961 gflops
    Memory bus width 192 Bit 256 Bit
    Memory bandwidth 120.0 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 (11_0)
    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 2.0, PCI Express 3.0 PCIe 3.0
    SLI options +
    HDMI +
    Bitcoin / BTC (SHA256) 82 Mh/s
    Laptop size large large
    Standard memory configuration GDDR5
    eDP 1.2 signal support Up to 3840x2160
    LVDS signal support Up to 1920x1200
    DisplayPort Multimode (DP++) support Up to 3840x2160
    HDCP content protection +
    7.1 channel HD audio on HDMI +
    TrueHD and DTS-HD audio bitstreaming +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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