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    GeForce GT 640M vs Radeon R6 Kaveri

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Radeon R6 Kaveri. 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 Radeon R6 Kaveri. 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
    Radeon R6 Kaveri Check Price

    GeForce GT 640M and Radeon R6 Kaveri are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon R6 Kaveri 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 R6 Kaveri here:

    GeForce GT 640M Laptops
    Radeon R6 Kaveri Laptops

    Main Specs

      GeForce GT 640M Radeon R6 Kaveri
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16
    Memory type DDR3\GDDR5
    Maximum RAM amount 2 GB
    Display Connectors No outputs
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    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon R6 Kaveri - with GCN 1.1.
    • GeForce GT 640M and Radeon R6 Kaveri are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 0−1 0−1
    ultra / 1080p 0−1 −
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 1−2
    medium / 1080p 2−3 0−1
    The average gaming FPS of GeForce GT 640M in Assassin's Creed Odyssey is 1000% more, than Radeon R6 Kaveri.

    Full Specs

      GeForce GT 640M Radeon R6 Kaveri
    Architecture Kepler GCN 1.1
    Code name N13P-GS Kaveri
    Type Laptop Laptop
    Release date 22 March 2012 4 June 2014
    Pipelines 384 384
    Core clock speed 533 MHz
    Boost Clock 645 MHz 654 MHz
    Transistor count 1,270 million 2410 Million
    Manufacturing process technology 28 nm 28 nm
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 64/128 Bit
    Memory clock speed 1800 - 4000 MHz
    Shared memory - +
    DirectX 12 API DirectX 12 (FL 12_0), Shader 5.0
    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 medium sized
    Optimus +
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