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    GeForce GT 640M vs GeForce MX450

    In this comparison between GeForce GT 640M and GeForce MX450 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 MX450 will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    GeForce MX450 Check Price

    GeForce GT 640M and GeForce MX450 are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce MX450 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 MX450 here:

    GeForce GT 640M Laptops
    GeForce MX450 Laptops

    Main Specs

      GeForce GT 640M GeForce MX450
    Power consumption (TDP) 32 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 4.0 x4
    Supplementary power connectors None
    Memory type DDR3\GDDR5 GDDR5,GDDR6
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce MX450 has 56% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce MX450 uses PCIe 4.0 x4 interface.
    • GeForce GT 640M and GeForce MX450 have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce MX450 - with Turing.
    • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce MX450 - by 12 nm process technology.
    • Memory clock speed of GeForce MX450 is 8202 MHz higher, than GeForce GT 640M.

    Game benchmarks

    high / 1080p 0−1 16−18
    ultra / 1080p 0−1 10−11
    QHD / 1440p 0−1 4−5
    low / 720p 10−12 35−40
    medium / 1080p 2−3 21−24
    The average gaming FPS of GeForce MX450 in Assassin's Creed Odyssey is 400% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce MX450
    Architecture Kepler Turing
    Code name N13P-GS N17S-G5 / GP107-670-A1
    Type Laptop Laptop
    Release date 22 March 2012 1 August 2020
    Pipelines 384 896
    Core clock speed 1395 MHz
    Boost Clock 645 MHz 1575 MHz
    Transistor count 1,270 million 4,700 million
    Manufacturing process technology 28 nm 12 nm
    Texture fill rate 100.8
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 64 Bit
    Memory clock speed 1800 - 4000 MHz 10002 MHz
    Memory bandwidth 64.03 GB/s
    Shared memory - -
    DirectX 12 API 12 (12_1)
    Shader Model 5.1 6.5
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan 1.1.126 1.2
    CUDA + 7.5
    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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