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    GeForce GT 645M vs GeForce GT 650M SLI

    In this comparison between GeForce GT 645M and GeForce GT 650M SLI you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 645M will be the best choice, for others GeForce GT 650M SLI will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 645M Check Price
    GeForce GT 650M SLI Check Price

    GeForce GT 645M and GeForce GT 650M SLI are Laptop Graphics Cards

    Note: GeForce GT 645M and GeForce GT 650M 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 650M SLI here:

    GeForce GT 645M Laptops
    GeForce GT 650M SLI Laptops

    Main Specs

      GeForce GT 645M GeForce GT 650M SLI
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2x2 GB
    Display Connectors No outputs
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    • GeForce GT 645M and GeForce GT 650M SLI have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 645M and GeForce GT 650M SLI are build with Kepler architecture.
    • GeForce GT 645M and GeForce GT 650M SLI are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 650M SLI is 2200 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 12−14
    ultra / 1080p 0−1 7−8
    QHD / 1440p 0−1 2−3
    low / 720p 12−14 24−27
    medium / 1080p 2−3 14−16
    The average gaming FPS of GeForce GT 650M SLI in Assassin's Creed Odyssey is 240% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M GeForce GT 650M SLI
    Architecture Kepler Kepler
    Code name N13P-GS N13E-GE
    Type Laptop Laptop
    Release date 22 March 2012 22 March 2012
    Pipelines 384 768
    Core clock speed 790 MHz
    Boost Clock 835 MHz
    Transistor count 1,270 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 4000 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 medium sized
    Optimus + +
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