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    GeForce GT 640M vs GeForce GTX 950

    When choosing between GeForce GT 640M and GeForce GTX 950, 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 GT 640M and GeForce GTX 950.
    GeForce GT 640M Check Price
    GeForce GTX 950 Check Price

    GeForce GT 640M is a Laptop Graphics Card

    Note: GeForce GT 640M 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 here:

    GeForce GT 640M Laptops

    Main Specs

      GeForce GT 640M GeForce GTX 950
    Power consumption (TDP) 32 Watt 90 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors 1x 6-pins
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 3x DisplayPort
    Recommended system power (PSU) 350 Watt
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    • GeForce GTX 950 has 181% more power consumption, than GeForce GT 640M.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • GeForce GT 640M and GeForce GTX 950 have maximum RAM of 2 GB.
    • GeForce GT 640M is used in Laptops, and GeForce GTX 950 - in Desktops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 950 - with Maxwell.
    • GeForce GT 640M and GeForce GTX 950 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M is 1794 MHz higher, than GeForce GTX 950.

    Game benchmarks

    high / 1080p 0−1 35−40
    ultra / 1080p 0−1 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 10−12 60−65
    medium / 1080p 2−3 40−45
    The average gaming FPS of GeForce GTX 950 in Assassin's Creed Odyssey is 766% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 950
    Architecture Kepler Maxwell
    Code name N13P-GS GM206
    Type Laptop Desktop
    Release date 22 March 2012 20 August 2015
    Pipelines 384 768
    Core clock speed 1024 MHz
    Boost Clock 645 MHz 1188 MHz
    Transistor count 1,270 million 2,940 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 49.2 billion/sec
    Floating-point performance 480.0 gflops 1,825 gflops
    Length 7.938" (20.2 cm)
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 6.6 GB/s
    Memory bandwidth 105.6 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 1.2
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 384 768
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 3.0
    Height 4.376" (11.1 cm)
    SLI options +
    Multi monitor support 4 displays
    HDMI +
    HDCP + +
    Maximum VGA resolution Up to 2048x1536 2048x1536
    Audio input for HDMI Internal
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 233 Mh/s
    Laptop size medium sized
    Optimus +
    Ethereum / ETH (DaggerHashimoto) 9.97 Mh/s
    GameStream +
    GeForce ShadowPlay +
    GPU Boost 2.0
    GameWorks +
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