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    GeForce GT 640M vs GeForce GTX 960M

    In this comparison between GeForce GT 640M and GeForce GTX 960M 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 640M will be the best choice, for others GeForce GTX 960M will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    GeForce GTX 960M Check Price

    GeForce GT 640M and GeForce GTX 960M are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce GTX 960M 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 or GeForce GTX 960M here:

    GeForce GT 640M Laptops
    GeForce GTX 960M Laptops

    Main Specs

      GeForce GT 640M GeForce GTX 960M
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 960M has 134% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 960M uses MXM-B (3.0) interface.
    • GeForce GTX 960M has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 960M - with Maxwell.
    • GeForce GT 640M and GeForce GTX 960M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 960M is 700 MHz higher, than GeForce GT 640M.

    Game benchmarks

    high / 1080p 0−1 18−20
    ultra / 1080p 0−1 10−11
    QHD / 1440p 0−1 4−5
    4K / 2160p − 4−5
    low / 720p 10−12 35−40
    medium / 1080p 2−3 21−24
    The average gaming FPS of GeForce GTX 960M in Assassin's Creed Odyssey is 400% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 960M
    Architecture Kepler Maxwell
    Code name N13P-GS N16P-GX
    Type Laptop Laptop
    Release date 22 March 2012 12 March 2015
    Pipelines 384 640
    Core clock speed 1096 MHz
    Boost Clock 645 MHz 1202 MHz
    Transistor count 1,270 million 1,870 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 47.04
    Floating-point performance 480.0 gflops 1,505 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 2500 MHz
    Memory bandwidth 80 GB/s
    Shared memory - -
    DirectX 12 API 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.1 1.2
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 384 640
    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) 18 Mh/s 175 Mh/s
    Laptop size medium sized medium sized
    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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