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    GeForce GT 645M vs GeForce GTX 765M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and GeForce GTX 765M. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 645M and GeForce GTX 765M. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GT 645M Check Price
    GeForce GTX 765M Check Price

    GeForce GT 645M and GeForce GTX 765M are Laptop Graphics Cards

    Note: GeForce GT 645M and GeForce GTX 765M 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 GTX 765M here:

    GeForce GT 645M Laptops
    GeForce GTX 765M Laptops

    Main Specs

      GeForce GT 645M GeForce GTX 765M
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 765M has 134% more power consumption, than GeForce GT 645M.
    • GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GTX 765M uses MXM-B (3.0) interface.
    • GeForce GT 645M and GeForce GTX 765M have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 645M and GeForce GTX 765M are build with Kepler architecture.
    • GeForce GT 645M and GeForce GTX 765M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 765M is 200 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 9−10
    ultra / 1080p 0−1 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 21−24
    medium / 1080p 2−3 12−14
    The average gaming FPS of GeForce GTX 765M in Assassin's Creed Odyssey is 200% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M GeForce GTX 765M
    Architecture Kepler Kepler
    Code name N13P-GS N14-GE
    Type Laptop Laptop
    Release date 22 March 2012 30 May 2013
    Pipelines 384 768
    Core clock speed 850 MHz
    Boost Clock 863 MHz
    Transistor count 1,270 million 2,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 22.7 billion/sec 55.23
    Floating-point performance 544.5 gflops 1,326 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 MHz 2000 MHz
    Memory bandwidth 64.0 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 384 768
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0, PCI Express 2.0
    SLI options +
    HDMI + +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s 24 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 +
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