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    GeForce 945M vs GeForce GT 640M LE

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 945M and GeForce GT 640M LE. 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 945M and GeForce GT 640M LE. 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 945M Check Price
    GeForce GT 640M LE Check Price

    GeForce 945M and GeForce GT 640M LE are Laptop Graphics Cards

    Note: GeForce 945M and GeForce GT 640M LE 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 945M or GeForce GT 640M LE here:

    GeForce 945M Laptops
    GeForce GT 640M LE Laptops

    Main Specs

      GeForce 945M GeForce GT 640M LE
    Power consumption (TDP) 75 Watt 20 Watt
    Interface MXM-B (3.0) PCIe 2.0 x16
    Supplementary power connectors None
    Memory type DDR3 DDR3\DDR5
    Maximum RAM amount 4 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce 945M has 275% more power consumption, than GeForce GT 640M LE.
    • GeForce 945M is connected by MXM-B (3.0), and GeForce GT 640M LE uses PCIe 2.0 x16 interface.
    • GeForce 945M has 2 GB more memory, than GeForce GT 640M LE.
    • Both cards are used in Laptops.
    • GeForce 945M is build with Maxwell architecture, and GeForce GT 640M LE - with Fermi / Kepler.
    • GeForce 945M and GeForce GT 640M LE are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 945M is 200 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 10−11 0−1
    ultra / 1080p 6−7 −
    QHD / 1440p 1−2 0−1
    low / 720p 24−27 1−2
    medium / 1080p 12−14 0−1
    The average gaming FPS of GeForce 945M in Assassin's Creed Odyssey is 2400% more, than GeForce GT 640M LE.

    Full Specs

      GeForce 945M GeForce GT 640M LE
    Architecture Maxwell Fermi / Kepler
    Code name GM107 N13P-LP
    Type Laptop Laptop
    Release date 12 March 2015 22 March 2012
    Pipelines 512 384
    Core clock speed 928 MHz
    Boost Clock 1045 MHz
    Transistor count 1,870 million 585 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 40.80
    Floating-point performance 953.9 gflops 384.0 gflops
    Memory bus width 128 Bit 128bit
    Memory clock speed 2000 MHz 1800 - 4000 MHz
    Memory bandwidth 28.8 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 N/A
    CUDA + +
    CUDA cores Up to 384
    Bus support PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 107 Mh/s 14 Mh/s
    Laptop size medium sized medium sized
    Optimus + +
    GPU Boost 2.0
    GameWorks +
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