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    GeForce GT 645M vs GeForce GT 750M SLI

    When comparing GeForce GT 645M and GeForce GT 750M SLI, 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 645M and GeForce GT 750M SLI is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 645M Check Price
    GeForce GT 750M SLI Check Price

    GeForce GT 645M and GeForce GT 750M SLI are Laptop Graphics Cards

    Note: GeForce GT 645M and GeForce GT 750M SLI 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 645M or GeForce GT 750M SLI here:

    GeForce GT 645M Laptops
    GeForce GT 750M SLI Laptops

    Main Specs

      GeForce GT 645M GeForce GT 750M SLI
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16
    Memory type DDR3\GDDR5 DDR3, GDDR5
    Maximum RAM amount 2 GB 2x 2 GB
    Display Connectors No outputs
      Check Price Check Price
    • GeForce GT 645M and GeForce GT 750M SLI have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 645M and GeForce GT 750M SLI are build with Kepler architecture.
    • GeForce GT 645M and GeForce GT 750M SLI are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 750M SLI is 200 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 14−16
    ultra / 1080p 0−1 8−9
    QHD / 1440p 0−1 3−4
    low / 720p 12−14 30−33
    medium / 1080p 2−3 18−20
    The average gaming FPS of GeForce GT 750M SLI in Assassin's Creed Odyssey is 320% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M GeForce GT 750M SLI
    Architecture Kepler Kepler
    Code name N13P-GS N14P-GT
    Type Laptop Laptop
    Release date 22 March 2012 1 April 2013
    Pipelines 384 768
    Core clock speed 967 MHz
    Transistor count 1,270 million 1300 Million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 22.7 billion/sec
    Floating-point performance 544.5 gflops
    Memory bus width 128bit 2x 128 Bit
    Memory clock speed 1800 MHz 2000 - 5000 MHz
    Shared memory - -
    DirectX 12 API DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.1
    Vulkan 1.1.126
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size medium sized large
    Optimus +
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