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    GeForce GT 640M vs GeForce GTX 950A

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and GeForce GTX 950A. 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 GT 640M and GeForce GTX 950A. 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 GT 640M Check Price
    GeForce GTX 950A

    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 950A
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Memory type DDR3\GDDR5 DDR3
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 950A has 134% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 950A uses MXM-B (3.0) interface.
    • GeForce GT 640M and GeForce GTX 950A have maximum RAM of 2 GB.
    • GeForce GT 640M is used in Laptops, and GeForce GTX 950A - in Desktops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 950A - with Maxwell.
    • GeForce GT 640M and GeForce GTX 950A are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 950A is 202 MHz higher, than GeForce GT 640M.

    Game benchmarks

    high / 1080p 0−1 12−14
    ultra / 1080p 0−1 7−8
    QHD / 1440p 0−1 2−3
    low / 720p 10−12 24−27
    medium / 1080p 2−3 14−16
    The average gaming FPS of GeForce GTX 950A in Assassin's Creed Odyssey is 233% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 950A
    Architecture Kepler Maxwell
    Code name N13P-GS GM107
    Type Laptop Desktop
    Release date 22 March 2012 13 March 2015
    Pipelines 384 640
    Core clock speed 993 MHz
    Boost Clock 645 MHz 1124 MHz
    Transistor count 1,270 million 1,870 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 44.96
    Floating-point performance 480.0 gflops 1,271 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 2002 MHz
    Memory bandwidth 32.03 GB/s
    Shared memory -
    DirectX 12 API 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan 1.1.126 1.1.126
    CUDA + 5.0
    CUDA cores 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) 18 Mh/s
    Laptop size medium sized
    Optimus +
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