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    GeForce 945A vs Radeon HD 6990M Crossfire

    If you are going to buy a new graphics card and are choosing between GeForce 945A 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 945A stacks up against Radeon HD 6990M Crossfire, check out specs charts below.
    GeForce 945A
    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

      GeForce 945A Radeon HD 6990M Crossfire
    Power consumption (TDP) 33 Watt
    Interface PCIe 3.0 x8
    Memory type GDDR5 GDDR5
    Maximum RAM amount 1 GB 2x2 GB
    Display Connectors No outputs
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    • Radeon HD 6990M Crossfire has 1 GB more memory, than GeForce 945A.
    • GeForce 945A is used in Desktops, and Radeon HD 6990M Crossfire - in Laptops.
    • GeForce 945A is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of GeForce 945A is 357 MHz higher, than Radeon HD 6990M Crossfire.
    • GeForce 945A is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of GeForce 945A is 4112 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 9−10 35−40
    ultra / 1080p 5−6 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 20−22 60−65
    medium / 1080p 10−12 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 272% more, than GeForce 945A.

    Full Specs

      GeForce 945A Radeon HD 6990M Crossfire
    Architecture Maxwell Terascale 2
    Code name GM108 Blackcomb XTX
    Type Desktop Laptop
    Release date 13 March 2015 12 July 2011
    Pipelines 384 2240
    Core clock speed 1072 MHz 715 MHz
    Boost Clock 1189 MHz
    Transistor count 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 28.54
    Floating-point performance 903.2 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 5012 MHz 900 MHz
    Memory bandwidth 40.1 GB/s
    Shared memory -
    DirectX 12 (11_0) DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.6
    OpenCL 1.2
    Vulkan 1.1.126
    CUDA 5.0
    Bitcoin / BTC (SHA256) 108 Mh/s
    Laptop size large
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