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    GeForce 8800M GTX SLI vs Radeon HD 6990M Crossfire

    If you are going to buy a new graphics card and are choosing between GeForce 8800M GTX 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 8800M GTX SLI stacks up against Radeon HD 6990M Crossfire, check out specs charts below.
    GeForce 8800M GTX SLI Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce 8800M GTX SLI and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce 8800M GTX 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 8800M GTX SLI or Radeon HD 6990M Crossfire here:

    GeForce 8800M GTX SLI Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce 8800M GTX SLI Radeon HD 6990M Crossfire
    Power consumption (TDP) 130 Watt
    Memory type GDDR3 GDDR5
    Maximum RAM amount 512 MB 2x2 GB
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    • GeForce 8800M GTX SLI has 510 GB more memory, than Radeon HD 6990M Crossfire.
    • Both cards are used in Laptops.
    • GeForce 8800M GTX SLI is build with G9x architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of Radeon HD 6990M Crossfire is 215 MHz higher, than GeForce 8800M GTX SLI.
    • GeForce 8800M GTX SLI is manufactured by 65 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of Radeon HD 6990M Crossfire is 100 MHz higher, than GeForce 8800M GTX SLI.

    Game benchmarks

    high / 1080p 6−7 35−40
    ultra / 1080p 4−5 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 16−18 60−65
    medium / 1080p 7−8 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 412% more, than GeForce 8800M GTX SLI.

    Full Specs

      GeForce 8800M GTX SLI Radeon HD 6990M Crossfire
    Architecture G9x Terascale 2
    Code name NB8E-GTX Blackcomb XTX
    Type Laptop Laptop
    Release date 19 November 2007 12 July 2011
    Pipelines 192 2240
    Core clock speed 500 MHz 715 MHz
    Transistor count 1508 Million 2x1700 Million
    Manufacturing process technology 65 nm 40 nm
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 800 MHz 900 MHz
    Shared memory - -
    DirectX DirectX 10, Shader 4.0 DirectX 11, Shader 5.0
    Laptop size large large
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