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    GeForce 940MX vs GeForce GTX 680

    In this comparison between GeForce 940MX and GeForce GTX 680 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 940MX will be the best choice, for others GeForce GTX 680 will be their preference. Study the comparison tables below and make your choice.
    GeForce 940MX Check Price
    GeForce GTX 680 Check Price

    GeForce 940MX is a Laptop Graphics Card

    Note: GeForce 940MX 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 GeForce 940MX here:

    GeForce 940MX Laptops

    Main Specs

      GeForce 940MX GeForce GTX 680
    Power consumption (TDP) 23 Watt 195 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors None Two 6-pin
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 4 GB 2048 MB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
      Check Price Check Price
    • GeForce GTX 680 has 747% more power consumption, than GeForce 940MX.
    • GeForce 940MX is connected by PCIe 3.0 x8, and GeForce GTX 680 uses PCIe 3.0 x16 interface.
    • GeForce GTX 680 has 2044 GB more memory, than GeForce 940MX.
    • GeForce 940MX is used in Laptops, and GeForce GTX 680 - in Desktops.
    • GeForce 940MX is build with Maxwell architecture, and GeForce GTX 680 - with Kepler.
    • Core clock speed of GeForce 940MX is 116 MHz higher, than GeForce GTX 680.
    • GeForce 940MX and GeForce GTX 680 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680 is 2000 MHz higher, than GeForce 940MX.

    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 GeForce GTX 680 in Assassin's Creed Odyssey is 355% more, than GeForce 940MX.

    Full Specs

      GeForce 940MX GeForce GTX 680
    Architecture Maxwell Kepler
    Code name N16S-GTR-B/S GK104
    Type Laptop Desktop
    Release date 10 March 2016 22 March 2012
    Pipelines 384 1536
    Core clock speed 1122 MHz 1006 MHz
    Boost Clock 1242 MHz 1058 MHz
    Transistor count 1,870 million 3,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 23.83 128.8 billion/sec
    Floating-point performance 762.6 gflops 3,090.4 gflops
    Length 10.0" (25.4 cm)
    Memory bus width 64 Bit 256-bit GDDR5
    Memory clock speed 4000 MHz 6000 MHz
    Memory bandwidth 40.1 GB/s 192.2 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.2
    OpenCL 1.2 1.2
    Vulkan 1.1 1.1.126
    CUDA + +
    CUDA cores 1536
    Bus support PCI Express 3.0 PCI Express 3.0
    Height 4.376" (11.1 cm)
    SLI options +
    Multi monitor support 4 displays
    HDMI +
    HDCP +
    Maximum VGA resolution 2048x1536
    Audio input for HDMI Internal
    Bitcoin / BTC (SHA256) 102 Mh/s 121 Mh/s
    Laptop size medium sized
    Optimus +
    Ethereum / ETH (DaggerHashimoto) 15 Mh/s
    GPU Boost 2.0
    GameWorks +
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