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    GeForce 845M vs Radeon HD 6990M Crossfire

    When choosing between GeForce 845M and Radeon HD 6990M Crossfire, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 845M and Radeon HD 6990M Crossfire.
    GeForce 845M Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce 845M and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce 845M 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 845M or Radeon HD 6990M Crossfire here:

    GeForce 845M Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce 845M Radeon HD 6990M Crossfire
    Power consumption (TDP) 45 Watt
    Interface PCIe 3.0 x8
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 2 GB 2x2 GB
    Display Connectors No outputs
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    • GeForce 845M and Radeon HD 6990M Crossfire have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce 845M is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of GeForce 845M is 356 MHz higher, than Radeon HD 6990M Crossfire.
    • GeForce 845M is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of GeForce 845M is 1100 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 3−4 35−40
    ultra / 1080p 1−2 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 14−16 60−65
    medium / 1080p 6−7 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 583% more, than GeForce 845M.

    Full Specs

      GeForce 845M Radeon HD 6990M Crossfire
    Architecture Maxwell Terascale 2
    Code name GM108 Blackcomb XTX
    Type Laptop Laptop
    Release date 12 March 2014 12 July 2011
    Pipelines 384 2240
    Core clock speed 1071 MHz 715 MHz
    Boost Clock 1150 MHz
    Transistor count 1,870 million 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 37.63
    Floating-point performance 883.7 gflops
    Memory bus width 64/128 Bit 256 Bit
    Memory clock speed 2000 - 5000 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 +
    Bitcoin / BTC (SHA256) 76 Mh/s
    Laptop size medium sized large
    Optimus +
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