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    Quadro FX 3800 vs Radeon HD 6990M Crossfire

    If you are going to buy a new graphics card and are choosing between Quadro FX 3800 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 Quadro FX 3800 stacks up against Radeon HD 6990M Crossfire, check out specs charts below.
    Quadro FX 3800
    Radeon HD 6990M Crossfire Check Price

    Radeon HD 6990M Crossfire is a Laptop Graphics Card

    Note: Radeon HD 6990M Crossfire is only used in laptop graphics. It has 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 Radeon HD 6990M Crossfire here:

    Radeon HD 6990M Crossfire Laptops

    Main Specs

      Quadro FX 3800 Radeon HD 6990M Crossfire
    Power consumption (TDP) 108 Watt
    Interface PCIe 2.0 x16
    Supplementary power connectors 1x 6-pin
    Memory type GDDR3 GDDR5
    Maximum RAM amount 1 GB 2x2 GB
    Display Connectors 1x DVI, 2x DisplayPort
      Check Price
    • Radeon HD 6990M Crossfire has 1 GB more memory, than Quadro FX 3800.
    • Quadro FX 3800 is used in Desktops, and Radeon HD 6990M Crossfire - in Laptops.
    • Quadro FX 3800 is build with Tesla 2.0 architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of Radeon HD 6990M Crossfire is 115 MHz higher, than Quadro FX 3800.
    • Quadro FX 3800 is manufactured by 55 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of Quadro FX 3800 is 700 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 0−1 35−40
    ultra / 1080p 0−1 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 10−11 60−65
    medium / 1080p 1−2 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 766% more, than Quadro FX 3800.

    Full Specs

      Quadro FX 3800 Radeon HD 6990M Crossfire
    Architecture Tesla 2.0 Terascale 2
    Code name GT200B Blackcomb XTX
    Type Workstation Laptop
    Release date 30 March 2009 12 July 2011
    Pipelines 192 2240
    Core clock speed 600 MHz 715 MHz
    Transistor count 1,400 million 2x1700 Million
    Manufacturing process technology 55 nm 40 nm
    Texture fill rate 38.40
    Floating-point performance 462.3 gflops
    Length 198 mm
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 1600 MHz 900 MHz
    Memory bandwidth 51.2 GB/s
    Shared memory -
    DirectX 11.1 (10_0) DirectX 11, Shader 5.0
    Shader Model 4.0
    OpenGL 3.3
    OpenCL 1.1
    Vulkan N/A
    CUDA 1.3
    Laptop size large
      Check Price

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