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    GeForce GTX 870M vs Radeon HD 6990M Crossfire

    When choosing between GeForce GTX 870M and Radeon HD 6990M Crossfire, 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 870M and Radeon HD 6990M Crossfire.
    GeForce GTX 870M Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce GTX 870M and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce GTX 870M and Radeon HD 6990M Crossfire 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 HD 6990M Crossfire here:

    GeForce GTX 870M Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce GTX 870M Radeon HD 6990M Crossfire
    Power consumption (TDP) 100 Watt
    Interface MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 6 GB 2x2 GB
    Display Connectors No outputs
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    • GeForce GTX 870M has 4 GB more memory, than Radeon HD 6990M Crossfire.
    • Both cards are used in Laptops.
    • GeForce GTX 870M is build with Kepler architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of GeForce GTX 870M is 226 MHz higher, than Radeon HD 6990M Crossfire.
    • GeForce GTX 870M is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.

    Game benchmarks

    high / 1080p 16−18 35−40
    ultra / 1080p 10−11 21−24
    QHD / 1440p 4−5 16−18
    4K / 2160p − 10−11
    low / 720p 35−40 60−65
    medium / 1080p 21−24 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 100% more, than GeForce GTX 870M.

    Full Specs

      GeForce GTX 870M Radeon HD 6990M Crossfire
    Architecture Kepler Terascale 2
    Code name N15P-GT Blackcomb XTX
    Type Laptop Laptop
    Release date 12 March 2014 12 July 2011
    Pipelines 1344 2240
    Core clock speed 941 MHz 715 MHz
    Boost Clock 967 MHz
    Transistor count 3,540 million 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 108.3
    Floating-point performance 2,599 gflops
    Memory bus width 192 Bit 256 Bit
    Memory clock speed 900 MHz
    Memory bandwidth 120.0 GB/s
    Shared memory - -
    DirectX 12 (11_0) DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.1
    Vulkan 1.1.126
    CUDA +
    CUDA cores 1344
    Bus support PCI Express 2.0, PCI Express 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 +
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