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    GeForce 840M vs GeForce GTX 780M

    When choosing between GeForce 840M and GeForce GTX 780M, 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 840M and GeForce GTX 780M.
    GeForce 840M Check Price
    GeForce GTX 780M Check Price

    GeForce 840M and GeForce GTX 780M are Laptop Graphics Cards

    Note: GeForce 840M and GeForce GTX 780M 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 840M or GeForce GTX 780M here:

    GeForce 840M Laptops
    GeForce GTX 780M Laptops

    Main Specs

      GeForce 840M GeForce GTX 780M
    Power consumption (TDP) 33 Watt 122 Watt
    Interface PCIe 3.0 x8 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 780M has 269% more power consumption, than GeForce 840M.
    • GeForce 840M is connected by PCIe 3.0 x8, and GeForce GTX 780M uses MXM-B (3.0) interface.
    • GeForce 840M and GeForce GTX 780M have maximum RAM of 4 GB.
    • Both cards are used in Laptops.
    • GeForce 840M is build with Maxwell architecture, and GeForce GTX 780M - with Kepler.
    • Core clock speed of GeForce 840M is 206 MHz higher, than GeForce GTX 780M.
    • GeForce 840M and GeForce GTX 780M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 780M is 500 MHz higher, than GeForce 840M.

    Game benchmarks

    high / 1080p 1−2 20−22
    ultra / 1080p 0−1 12−14
    QHD / 1440p 0−1 6−7
    4K / 2160p − 5−6
    low / 720p 12−14 40−45
    medium / 1080p 3−4 24−27
    The average gaming FPS of GeForce GTX 780M in Assassin's Creed Odyssey is 383% more, than GeForce 840M.

    Full Specs

      GeForce 840M GeForce GTX 780M
    Architecture Maxwell Kepler
    Code name N15S-GT N14E-GTX
    Type Laptop Laptop
    Release date 12 March 2014 30 May 2013
    Pipelines 384 1536
    Core clock speed 1029 MHz 823 MHz
    Boost Clock 1124 MHz 797 MHz
    Transistor count 3,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.98 102.0
    Floating-point performance 863.2 gflops 2,448 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2000 MHz 2500 MHz
    Memory bandwidth 16.02 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 1536
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0, PCI Express 2.0
    SLI options +
    HDMI +
    Bitcoin / BTC (SHA256) 92 Mh/s 82 Mh/s
    Laptop size medium sized large
    Standard memory configuration GDDR5
    eDP 1.2 signal support Up to 3840x2160
    LVDS signal support Up to 1920x1200
    DisplayPort Multimode (DP++) support Up to 3840x2160
    HDCP content protection +
    7.1 channel HD audio on HDMI +
    TrueHD and DTS-HD audio bitstreaming +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus + +
    Blu-Ray 3D Support +
    3D Vision / 3DTV Play +
    GPU Boost 2.0
    GameWorks +
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