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    GeForce GT 640M vs GeForce GTX 280M SLI

    When choosing between GeForce GT 640M and GeForce GTX 280M SLI, 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 280M SLI.
    GeForce GT 640M Check Price
    GeForce GTX 280M SLI Check Price

    GeForce GT 640M and GeForce GTX 280M SLI are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce GTX 280M SLI 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 280M SLI here:

    GeForce GT 640M Laptops
    GeForce GTX 280M SLI Laptops

    Main Specs

      GeForce GT 640M GeForce GTX 280M SLI
    Power consumption (TDP) 32 Watt 150 Watt
    Interface PCIe 3.0 x16
    Memory type DDR3\GDDR5 GDDR3
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs
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    • GeForce GTX 280M SLI has 368% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M and GeForce GTX 280M SLI have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 280M SLI - with G9x.
    • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce GTX 280M SLI - by 55 nm process technology.
    • Memory clock speed of GeForce GT 640M is 850 MHz higher, than GeForce GTX 280M SLI.

    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 280M SLI in Assassin's Creed Odyssey is 233% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 280M SLI
    Architecture Kepler G9x
    Code name N13P-GS N10E-GTX
    Type Laptop Laptop
    Release date 22 March 2012 2 March 2009
    Pipelines 384 256
    Core clock speed 585 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 1508 Million
    Manufacturing process technology 28 nm 55 nm
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 950 MHz
    Shared memory - -
    DirectX 12 API DirectX 10, Shader 4.0
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.1
    Vulkan 1.1.126
    CUDA + +
    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 large
    Optimus +
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