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    GeForce 845M vs Radeon HD 6990M

    When comparing GeForce 845M and Radeon HD 6990M, 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 845M and Radeon HD 6990M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 845M Check Price
    Radeon HD 6990M Check Price

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

    Note: GeForce 845M and Radeon HD 6990M 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 here:

    GeForce 845M Laptops
    Radeon HD 6990M Laptops

    Main Specs

      GeForce 845M Radeon HD 6990M
    Power consumption (TDP) 45 Watt 100 Watt
    Interface PCIe 3.0 x8 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • Radeon HD 6990M has 122% more power consumption, than GeForce 845M.
    • GeForce 845M is connected by PCIe 3.0 x8, and Radeon HD 6990M uses MXM-B (3.0) interface.
    • GeForce 845M and Radeon HD 6990M have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce 845M is build with Maxwell architecture, and Radeon HD 6990M - with Terascale 2.
    • Core clock speed of GeForce 845M is 356 MHz higher, than Radeon HD 6990M.
    • GeForce 845M is manufactured by 28 nm process technology, and Radeon HD 6990M - by 40 nm process technology.
    • Memory clock speed of GeForce 845M is 1100 MHz higher, than Radeon HD 6990M.

    Game benchmarks

    high / 1080p 3−4 14−16
    ultra / 1080p 1−2 8−9
    QHD / 1440p 0−1 3−4
    low / 720p 14−16 30−33
    medium / 1080p 6−7 16−18
    The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 200% more, than GeForce 845M.

    Full Specs

      GeForce 845M Radeon HD 6990M
    Architecture Maxwell Terascale 2
    Code name GM108 Blackcomb XTX
    Type Laptop Laptop
    Release date 12 March 2014 12 July 2011
    Pipelines 384 1120
    Core clock speed 1071 MHz 715 MHz
    Boost Clock 1150 MHz
    Transistor count 1,870 million 1,700 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 37.63 40.04
    Floating-point performance 883.7 gflops 1,601.6 gflops
    Memory bus width 64/128 Bit 256 Bit
    Memory clock speed 2000 - 5000 MHz 900 MHz
    Memory bandwidth 40.1 GB/s 115.2 GB/s
    Shared memory - -
    DirectX 12 (11_0) 11.2 (11_0)
    Shader Model 5.1 5.0
    OpenGL 4.6 4.4
    OpenCL 1.2 1.2
    Vulkan 1.1.126 N/A
    CUDA +
    Bitcoin / BTC (SHA256) 76 Mh/s
    Laptop size medium sized large
    Optimus +
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