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    GeForce GT 640M LE vs GeForce GTX 970M

    When comparing GeForce GT 640M LE and GeForce GTX 970M, 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 970M 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 970M Check Price

    GeForce GT 640M LE and GeForce GTX 970M are Laptop Graphics Cards

    Note: GeForce GT 640M LE and GeForce GTX 970M 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 970M here:

    GeForce GT 640M LE Laptops
    GeForce GTX 970M Laptops

    Main Specs

      GeForce GT 640M LE GeForce GTX 970M
    Power consumption (TDP) 20 Watt
    Interface PCIe 2.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3\DDR5 GDDR5
    Maximum RAM amount 2 GB 6 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and GeForce GTX 970M uses MXM-B (3.0) interface.
    • GeForce GTX 970M has 4 GB more memory, than GeForce GT 640M LE.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and GeForce GTX 970M - with Maxwell.
    • GeForce GT 640M LE and GeForce GTX 970M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 970M is 700 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 0−1 35−40
    ultra / 1080p − 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 1−2 60−65
    medium / 1080p 0−1 40−45
    The average gaming FPS of GeForce GTX 970M in Assassin's Creed Odyssey is 6100% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE GeForce GTX 970M
    Architecture Fermi / Kepler Maxwell
    Code name N13P-LP GM204
    Type Laptop Laptop
    Release date 22 March 2012 7 October 2014
    Pipelines 384 1280
    Core clock speed 924 MHz
    Boost Clock 1038 MHz
    Transistor count 585 million 5,200 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 83.04
    Floating-point performance 384.0 gflops 2,657 gflops
    Memory bus width 128bit 192 Bit
    Memory clock speed 1800 - 4000 MHz 2500 MHz
    Memory bandwidth 120 GB/s
    Shared memory - -
    G-SYNC support +
    DirectX 12 API 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.5
    OpenCL 1.1 1.1
    Vulkan N/A 1.1.126
    CUDA + +
    CUDA cores Up to 384 1280
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
    SLI options +
    HDMI + +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s 314 Mh/s
    Laptop size medium sized large
    DisplayPort Multimode (DP++) support +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus + +
    GameStream +
    GeForce ShadowPlay +
    GPU Boost 2.0
    GameWorks +
    BatteryBoost +
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