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    GeForce GT 640M vs Radeon 520

    If you are going to buy a new graphics card and are choosing between GeForce GT 640M and Radeon 520, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GT 640M stacks up against Radeon 520, check out specs charts below.
    GeForce GT 640M Check Price
    Radeon 520 Check Price

    GeForce GT 640M and Radeon 520 are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon 520 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 520 here:

    GeForce GT 640M Laptops
    Radeon 520 Laptops

    Main Specs

      GeForce GT 640M Radeon 520
    Power consumption (TDP) 32 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3\GDDR5 DDR3, GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x VGA
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    • Radeon 520 has 56% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon 520 uses PCIe 3.0 x8 interface.
    • GeForce GT 640M and Radeon 520 have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon 520 - with GCN 1.0.
    • GeForce GT 640M and Radeon 520 are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon 520 is 450 MHz higher, than GeForce GT 640M.

    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 520.

    Full Specs

      GeForce GT 640M Radeon 520
    Architecture Kepler GCN 1.0
    Code name N13P-GS Oland
    Type Laptop Laptop
    Release date 22 March 2012 21 March 2017
    Pipelines 384 320
    Core clock speed 1030 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 1,040 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 20.60
    Floating-point performance 480.0 gflops 659.2 gflops
    Memory bus width 128bit 64 Bit
    Memory clock speed 1800 - 4000 MHz 2250 MHz
    Memory bandwidth 16 GB/s
    Shared memory - -
    DirectX 12 API 12.0
    Shader Model 5.1 5.0
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    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
    Optimus +
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