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    GeForce 940MX vs Radeon HD 6990M Crossfire

    When comparing GeForce 940MX and Radeon HD 6990M Crossfire, 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 940MX and Radeon HD 6990M Crossfire is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 940MX Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce 940MX and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce 940MX 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 940MX or Radeon HD 6990M Crossfire here:

    GeForce 940MX Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce 940MX Radeon HD 6990M Crossfire
    Power consumption (TDP) 23 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 4 GB 2x2 GB
    Display Connectors No outputs
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    • GeForce 940MX has 2 GB more memory, than Radeon HD 6990M Crossfire.
    • Both cards are used in Laptops.
    • GeForce 940MX is build with Maxwell architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of GeForce 940MX is 407 MHz higher, than Radeon HD 6990M Crossfire.
    • GeForce 940MX is manufactured by 28 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of GeForce 940MX is 3100 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 7−8 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 8−9 40−45
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 355% more, than GeForce 940MX.

    Full Specs

      GeForce 940MX Radeon HD 6990M Crossfire
    Architecture Maxwell Terascale 2
    Code name N16S-GTR-B/S Blackcomb XTX
    Type Laptop Laptop
    Release date 10 March 2016 12 July 2011
    Pipelines 384 2240
    Core clock speed 1122 MHz 715 MHz
    Boost Clock 1242 MHz
    Transistor count 1,870 million 2x1700 Million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 23.83
    Floating-point performance 762.6 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 4000 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 4.5
    OpenCL 1.2
    Vulkan 1.1
    CUDA +
    Bus support PCI Express 3.0
    Bitcoin / BTC (SHA256) 102 Mh/s
    Laptop size medium sized large
    Optimus +
    GPU Boost 2.0
    GameWorks +
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