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    GeForce GT 640 vs GeForce MX450

    When comparing GeForce GT 640 and GeForce MX450, 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 640 and GeForce MX450 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640 Check Price
    GeForce MX450 Check Price

    GeForce MX450 is a Laptop Graphics Card

    Note: GeForce MX450 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 MX450 here:

    GeForce MX450 Laptops

    Main Specs

      GeForce GT 640 GeForce MX450
    Power consumption (TDP) 65 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 4.0 x4
    Supplementary power connectors None None
    Memory type DDR3 GDDR5,GDDR6
    Maximum RAM amount 2 GB 2 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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    • GeForce GT 640 has 30% more power consumption, than GeForce MX450.
    • GeForce GT 640 is connected by PCIe 3.0 x16, and GeForce MX450 uses PCIe 4.0 x4 interface.
    • GeForce GT 640 and GeForce MX450 have maximum RAM of 2 GB.
    • GeForce GT 640 is used in Desktops, and GeForce MX450 - in Laptops.
    • GeForce GT 640 is build with Kepler architecture, and GeForce MX450 - with Turing.
    • Core clock speed of GeForce MX450 is 493 MHz higher, than GeForce GT 640.
    • GeForce GT 640 is manufactured by 28 nm process technology, and GeForce MX450 - by 12 nm process technology.
    • Memory clock speed of GeForce MX450 is 8220 MHz higher, than GeForce GT 640.

    Game benchmarks

    high / 1080p 2−3 16−18
    ultra / 1080p 1−2 10−11
    QHD / 1440p 0−1 4−5
    low / 720p 14−16 35−40
    medium / 1080p 5−6 21−24
    The average gaming FPS of GeForce MX450 in Assassin's Creed Odyssey is 250% more, than GeForce GT 640.

    Full Specs

      GeForce GT 640 GeForce MX450
    Architecture Kepler Turing
    Code name GK107 N17S-G5 / GP107-670-A1
    Type Desktop Laptop
    Release date 5 June 2012 1 August 2020
    Pipelines 384 896
    Core clock speed 902 MHz 1395 MHz
    Boost Clock 1575 MHz
    Transistor count 1,270 million 4,700 million
    Manufacturing process technology 28 nm 12 nm
    Texture fill rate 28.86 100.8
    Floating-point performance 692.7 gflops
    Length 145 mm
    Memory bus width 128 Bit 64 Bit
    Memory clock speed 1782 MHz 10002 MHz
    Memory bandwidth 28.51 GB/s 64.03 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.5
    OpenGL 4.6 4.6
    OpenCL 1.2 1.2
    Vulkan 1.1.126 1.2
    CUDA 3.0 7.5
    Bitcoin / BTC (SHA256) 24 Mh/s
    Optimus +
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