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    GeForce 940M vs GeForce GTX 680

    When choosing between GeForce 940M and GeForce GTX 680, 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 940M and GeForce GTX 680.
    GeForce 940M Check Price
    GeForce GTX 680 Check Price

    GeForce 940M is a Laptop Graphics Card

    Note: GeForce 940M 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 940M here:

    GeForce 940M Laptops

    Main Specs

      GeForce 940M GeForce GTX 680
    Power consumption (TDP) 75 Watt 195 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors Two 6-pin
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 2048 MB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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    • GeForce GTX 680 has 160% more power consumption, than GeForce 940M.
    • GeForce 940M 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 940M.
    • GeForce 940M is used in Laptops, and GeForce GTX 680 - in Desktops.
    • GeForce 940M is build with Maxwell architecture, and GeForce GTX 680 - with Kepler.
    • Core clock speed of GeForce 940M is 66 MHz higher, than GeForce GTX 680.
    • GeForce 940M and GeForce GTX 680 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680 is 4000 MHz higher, than GeForce 940M.

    Game benchmarks

    high / 1080p 2−3 35−40
    ultra / 1080p 1−2 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 12−14 60−65
    medium / 1080p 4−5 40−45
    The average gaming FPS of GeForce GTX 680 in Assassin's Creed Odyssey is 720% more, than GeForce 940M.

    Full Specs

      GeForce 940M GeForce GTX 680
    Architecture Maxwell Kepler
    Code name N16S-GT-S/B GK104
    Type Laptop Desktop
    Release date 12 March 2015 22 March 2012
    Pipelines 384 1536
    Core clock speed 1072 MHz 1006 MHz
    Boost Clock 1176 MHz 1058 MHz
    Transistor count 1,870 million 3,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 28.22 128.8 billion/sec
    Floating-point performance 903.2 gflops 3,090.4 gflops
    Length 10.0" (25.4 cm)
    Memory bus width 64 Bit 256-bit GDDR5
    Memory clock speed 2000 MHz 6000 MHz
    Memory bandwidth 14.4 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 1.1.126 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) 101 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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