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    GeForce GT 640M LE vs GeForce GTX 675MX

    When comparing GeForce GT 640M LE and GeForce GTX 675MX, 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 LE and GeForce GTX 675MX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640M LE Check Price
    GeForce GTX 675MX Check Price

    GeForce GT 640M LE and GeForce GTX 675MX are Laptop Graphics Cards

    Note: GeForce GT 640M LE and GeForce GTX 675MX 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 LE or GeForce GTX 675MX here:

    GeForce GT 640M LE Laptops
    GeForce GTX 675MX Laptops

    Main Specs

      GeForce GT 640M LE GeForce GTX 675MX
    Power consumption (TDP) 20 Watt 100 Watt
    Interface PCIe 2.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3\DDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 675MX has 400% more power consumption, than GeForce GT 640M LE.
    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and GeForce GTX 675MX uses MXM-B (3.0) interface.
    • GeForce GT 640M LE and GeForce GTX 675MX have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 675MX - with Kepler.
    • GeForce GT 640M LE and GeForce GTX 675MX are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M LE and GeForce GTX 675MX is 1800 MHz.

    Game benchmarks

    high / 1080p 0−1 9−10
    ultra / 1080p − 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 21−24
    medium / 1080p 0−1 12−14
    The average gaming FPS of GeForce GTX 675MX in Assassin's Creed Odyssey is 2100% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE GeForce GTX 675MX
    Architecture Fermi / Kepler Kepler
    Code name N13P-LP N13E-GSR
    Type Laptop Laptop
    Release date 22 March 2012 1 October 2012
    Pipelines 384 960
    Core clock speed 600 MHz
    Transistor count 585 million 3,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 48.0 billion/sec
    Floating-point performance 384.0 gflops 1,256 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 1800 MHz
    Memory bandwidth 115.2 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 N/A 1.1.126
    CUDA + +
    CUDA cores Up to 384 960
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 2.0
    SLI options +
    HDMI + +
    HDCP + +
    Maximum VGA resolution Up to 2048x1536 Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s 63 Mh/s
    Laptop size medium sized large
    Optimus + +
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