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    GeForce GTX 680M SLI vs Radeon HD 6990M

    In this comparison between GeForce GTX 680M SLI and Radeon HD 6990M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 680M SLI will be the best choice, for others Radeon HD 6990M will be their preference. Study the comparison tables below and make your choice.
    GeForce GTX 680M SLI Check Price
    Radeon HD 6990M Check Price

    GeForce GTX 680M SLI and Radeon HD 6990M are Laptop Graphics Cards

    Note: GeForce GTX 680M SLI and Radeon HD 6990M 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 SLI or Radeon HD 6990M here:

    GeForce GTX 680M SLI Laptops
    Radeon HD 6990M Laptops

    Main Specs

      GeForce GTX 680M SLI Radeon HD 6990M
    Power consumption (TDP) 100 Watt
    Interface MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2x 4 GB 2 GB
    Display Connectors No outputs
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    • GeForce GTX 680M SLI and Radeon HD 6990M have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GTX 680M SLI is build with Kepler architecture, and Radeon HD 6990M - with Terascale 2.
    • Core clock speed of GeForce GTX 680M SLI is 5 MHz higher, than Radeon HD 6990M.
    • GeForce GTX 680M SLI is manufactured by 28 nm process technology, and Radeon HD 6990M - by 40 nm process technology.
    • Memory clock speed of GeForce GTX 680M SLI is 2700 MHz higher, than Radeon HD 6990M.

    Game benchmarks

    high / 1080p 35−40 14−16
    ultra / 1080p 21−24 8−9
    QHD / 1440p 16−18 3−4
    4K / 2160p 10−11 −
    low / 720p 60−65 30−33
    medium / 1080p 40−45 16−18
    The average gaming FPS of GeForce GTX 680M SLI in Assassin's Creed Odyssey is 140% more, than Radeon HD 6990M.

    Full Specs

      GeForce GTX 680M SLI Radeon HD 6990M
    Architecture Kepler Terascale 2
    Code name N13E-GTX Blackcomb XTX
    Type Laptop Laptop
    Release date 4 June 2012 12 July 2011
    Pipelines 2688 1120
    Core clock speed 720 MHz 715 MHz
    Transistor count 1,700 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 40.04
    Floating-point performance 1,601.6 gflops
    Memory bus width 2x 256 Bit 256 Bit
    Memory clock speed 3600 MHz 900 MHz
    Memory bandwidth 115.2 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0 11.2 (11_0)
    Shader Model 5.0
    OpenGL 4.4
    OpenCL 1.2
    Vulkan N/A
    CUDA +
    SLI options +
    Laptop size large large
    Optimus +
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