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    GeForce 945A vs GeForce GT 640M LE

    When choosing between GeForce 945A and GeForce GT 640M LE, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between GeForce 945A and GeForce GT 640M LE.
    GeForce 945A
    GeForce GT 640M LE Check Price

    GeForce GT 640M LE is a Laptop Graphics Card

    Note: GeForce GT 640M LE is only used in laptop graphics. It has 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 here:

    GeForce GT 640M LE Laptops

    Main Specs

      GeForce 945A GeForce GT 640M LE
    Power consumption (TDP) 33 Watt 20 Watt
    Interface PCIe 3.0 x8 PCIe 2.0 x16
    Memory type GDDR5 DDR3\DDR5
    Maximum RAM amount 1 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce 945A has 65% more power consumption, than GeForce GT 640M LE.
    • GeForce 945A is connected by PCIe 3.0 x8, and GeForce GT 640M LE uses PCIe 2.0 x16 interface.
    • GeForce GT 640M LE has 1 GB more memory, than GeForce 945A.
    • GeForce 945A is used in Desktops, and GeForce GT 640M LE - in Laptops.
    • GeForce 945A is build with Maxwell architecture, and GeForce GT 640M LE - with Fermi / Kepler.
    • GeForce 945A and GeForce GT 640M LE are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 945A is 3212 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 9−10 0−1
    ultra / 1080p 5−6 −
    QHD / 1440p 0−1 0−1
    low / 720p 20−22 1−2
    medium / 1080p 10−12 0−1
    The average gaming FPS of GeForce 945A in Assassin's Creed Odyssey is 2000% more, than GeForce GT 640M LE.

    Full Specs

      GeForce 945A GeForce GT 640M LE
    Architecture Maxwell Fermi / Kepler
    Code name GM108 N13P-LP
    Type Desktop Laptop
    Release date 13 March 2015 22 March 2012
    Pipelines 384 384
    Core clock speed 1072 MHz
    Boost Clock 1189 MHz
    Transistor count 585 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 28.54
    Floating-point performance 903.2 gflops 384.0 gflops
    Memory bus width 64 Bit 128bit
    Memory clock speed 5012 MHz 1800 - 4000 MHz
    Memory bandwidth 40.1 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.6 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 N/A
    CUDA 5.0 +
    CUDA cores Up to 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) 108 Mh/s 14 Mh/s
    Laptop size medium sized
    Optimus +
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