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    GeForce 940M vs GeForce GTX 680MX

    If you are going to buy a new graphics card and are choosing between GeForce 940M and GeForce GTX 680MX, 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 940M stacks up against GeForce GTX 680MX, check out specs charts below.
    GeForce 940M Check Price
    GeForce GTX 680MX Check Price

    GeForce 940M and GeForce GTX 680MX are Laptop Graphics Cards

    Note: GeForce 940M and GeForce GTX 680MX 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 940M or GeForce GTX 680MX here:

    GeForce 940M Laptops
    GeForce GTX 680MX Laptops

    Main Specs

      GeForce 940M GeForce GTX 680MX
    Power consumption (TDP) 75 Watt 122 Watt
    Interface PCIe 3.0 x8
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 2 GB
    Display Connectors No outputs
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    • GeForce GTX 680MX has 62% more power consumption, than GeForce 940M.
    • GeForce 940M has 2 GB more memory, than GeForce GTX 680MX.
    • Both cards are used in Laptops.
    • GeForce 940M is build with Maxwell architecture, and GeForce GTX 680MX - with Kepler.
    • Core clock speed of GeForce 940M is 352 MHz higher, than GeForce GTX 680MX.
    • GeForce 940M and GeForce GTX 680MX are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680MX is 500 MHz higher, than GeForce 940M.

    Game benchmarks

    high / 1080p 2−3 21−24
    ultra / 1080p 1−2 12−14
    QHD / 1440p 0−1 7−8
    4K / 2160p − 5−6
    low / 720p 12−14 40−45
    medium / 1080p 4−5 27−30
    The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 420% more, than GeForce 940M.

    Full Specs

      GeForce 940M GeForce GTX 680MX
    Architecture Maxwell Kepler
    Code name N16S-GT-S/B
    Type Laptop Laptop
    Release date 12 March 2015 23 October 2012
    Pipelines 384 1536
    Core clock speed 1072 MHz 720 MHz
    Boost Clock 1176 MHz
    Transistor count 1,870 million 3540 Million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 28.22 92.2 billion/sec
    Floating-point performance 903.2 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2000 MHz 2500 MHz
    Memory bandwidth 14.4 GB/s 160 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1
    OpenGL 4.5 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126
    CUDA + +
    CUDA cores 1536
    Bus support PCI Express 3.0 PCI Express 3.0
    SLI options +
    3D Vision +
    Bitcoin / BTC (SHA256) 101 Mh/s 57 Mh/s
    Laptop size medium sized large
    Optimus + +
    GPU Boost 2.0
    GameWorks +
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