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    GeForce GT 640M vs Radeon R9 M280X

    In this comparison between GeForce GT 640M and Radeon R9 M280X 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 Radeon R9 M280X will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    Radeon R9 M280X Check Price

    GeForce GT 640M and Radeon R9 M280X are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon R9 M280X 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 Radeon R9 M280X here:

    GeForce GT 640M Laptops
    Radeon R9 M280X Laptops

    Main Specs

      GeForce GT 640M Radeon R9 M280X
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 Not Listed
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon R9 M280X - with GCN.
    • GeForce GT 640M and Radeon R9 M280X are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p 0−1 1−2
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 14−16
    medium / 1080p 2−3 4−5
    The average gaming FPS of Radeon R9 M280X in Assassin's Creed Odyssey is 50% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon R9 M280X
    Architecture Kepler GCN
    Code name N13P-GS Saturn XT
    Type Laptop Laptop
    Release date 22 March 2012 1 February 2015
    Pipelines 384 896
    Core clock speed 900 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 2,080 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 61.60
    Floating-point performance 480.0 gflops 1,792 gflops
    Memory bus width 128bit
    Memory clock speed 1800 - 4000 MHz
    Memory bandwidth 96 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 6.3
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126
    CUDA +
    FreeSync +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 Not Listed
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s
    Laptop size medium sized large
    Optimus +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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