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    GeForce GT 640M vs GeForce GT 750M

    When comparing GeForce GT 640M and GeForce GT 750M, 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 GT 640M and GeForce GT 750M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640M Check Price
    GeForce GT 750M Check Price

    GeForce GT 640M and GeForce GT 750M are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce GT 750M 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 GT 640M or GeForce GT 750M here:

    GeForce GT 640M Laptops
    GeForce GT 750M Laptops

    Main Specs

      GeForce GT 640M GeForce GT 750M
    Power consumption (TDP) 32 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 DDR3
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 750M has 56% more power consumption, than GeForce GT 640M.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • GeForce GT 750M has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M and GeForce GT 750M are build with Kepler architecture.
    • GeForce GT 640M and GeForce GT 750M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 750M is 200 MHz higher, than GeForce GT 640M.

    Game benchmarks

    high / 1080p 0−1 5−6
    ultra / 1080p 0−1 2−3
    QHD / 1440p 0−1 2−3
    low / 720p 10−12 16−18
    medium / 1080p 2−3 7−8
    The average gaming FPS of GeForce GT 750M in Assassin's Creed Odyssey is 100% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GT 750M
    Architecture Kepler Kepler
    Code name N13P-GS N14P-GT
    Type Laptop Laptop
    Release date 22 March 2012 1 April 2013
    Pipelines 384 384
    Core clock speed 967 MHz
    Boost Clock 645 MHz 967 MHz
    Transistor count 1,270 million 1,270 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 30.94
    Floating-point performance 480.0 gflops 742.7 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 2000 - 5000 MHz
    Memory bandwidth 64.19 GB/s
    Shared memory - -
    DirectX 12 API 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.1 1.1
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
    HDMI + +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 27 Mh/s
    Laptop size medium sized medium sized
    Standard memory configuration DDR3/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 +
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