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    GeForce GTX 675M SLI vs Radeon HD 6990M Crossfire

    When comparing GeForce GTX 675M SLI and Radeon HD 6990M Crossfire, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 675M SLI and Radeon HD 6990M Crossfire is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GTX 675M SLI Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce GTX 675M SLI and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce GTX 675M 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 675M SLI or Radeon HD 6990M Crossfire here:

    GeForce GTX 675M SLI Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce GTX 675M SLI Radeon HD 6990M Crossfire
    Power consumption (TDP) 2x 100 Watt
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2x2 GB
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    • Both cards are used in Laptops.
    • GeForce GTX 675M SLI is build with Fermi architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of Radeon HD 6990M Crossfire is 95 MHz higher, than GeForce GTX 675M SLI.
    • GeForce GTX 675M SLI and Radeon HD 6990M Crossfire are manufactured by 40 nm process technology.
    • Memory clock speed of GeForce GTX 675M SLI is 2100 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 18−20 35−40
    ultra / 1080p 10−12 21−24
    QHD / 1440p 5−6 16−18
    4K / 2160p 4−5 10−11
    low / 720p 35−40 60−65
    medium / 1080p 24−27 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 88% more, than GeForce GTX 675M SLI.

    Full Specs

      GeForce GTX 675M SLI Radeon HD 6990M Crossfire
    Architecture Fermi Terascale 2
    Code name N12E-GTX2 Blackcomb XTX
    Type Laptop Laptop
    Release date 6 January 2011 12 July 2011
    Pipelines 768 2240
    Core clock speed 620 MHz 715 MHz
    Transistor count 2x1700 Million
    Manufacturing process technology 40 nm 40 nm
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 3000 MHz 900 MHz
    Shared memory - -
    DirectX DirectX 11, Shader 5.0 DirectX 11, Shader 5.0
    CUDA +
    SLI options +
    Laptop size large large
    Optimus +
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