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    GeForce GTX 670MX SLI vs Radeon HD 6990M Crossfire

    If you are going to buy a new graphics card and are choosing between GeForce GTX 670MX SLI and Radeon HD 6990M Crossfire, 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 GeForce GTX 670MX SLI stacks up against Radeon HD 6990M Crossfire, check out specs charts below.
    GeForce GTX 670MX SLI Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce GTX 670MX SLI and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce GTX 670MX SLI 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 670MX SLI or Radeon HD 6990M Crossfire here:

    GeForce GTX 670MX SLI Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce GTX 670MX SLI Radeon HD 6990M Crossfire
    Power consumption (TDP) 150 Watt
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2x2 GB
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    • Both cards are used in Laptops.
    • GeForce GTX 670MX SLI is build with Kepler architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of Radeon HD 6990M Crossfire is 115 MHz higher, than GeForce GTX 670MX SLI.
    • GeForce GTX 670MX SLI is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of GeForce GTX 670MX SLI is 1900 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 21−24 35−40
    ultra / 1080p 14−16 21−24
    QHD / 1440p 8−9 16−18
    4K / 2160p 5−6 10−11
    low / 720p 40−45 60−65
    medium / 1080p 27−30 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 60% more, than GeForce GTX 670MX SLI.

    Full Specs

      GeForce GTX 670MX SLI Radeon HD 6990M Crossfire
    Architecture Kepler Terascale 2
    Code name N13E-GR Blackcomb XTX
    Type Laptop Laptop
    Release date 1 October 2012 12 July 2011
    Pipelines 1920 2240
    Core clock speed 600 MHz 715 MHz
    Transistor count 5080 Million 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Memory bus width 2x 192 Bit 256 Bit
    Memory clock speed 2800 MHz 900 MHz
    Shared memory - -
    DirectX DirectX 11, Shader 5.1 DirectX 11, Shader 5.0
    CUDA +
    SLI options +
    Laptop size large large
    Optimus +
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