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    Radeon 520 vs Radeon RX 640

    If you are going to buy a new graphics card and are choosing between Radeon 520 and Radeon RX 640, 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 Radeon 520 stacks up against Radeon RX 640, check out specs charts below.
    Radeon 520 Check Price
    Radeon RX 640 Check Price

    Radeon 520 and Radeon RX 640 are Laptop Graphics Cards

    Note: Radeon 520 and Radeon RX 640 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 Radeon 520 or Radeon RX 640 here:

    Radeon 520 Laptops
    Radeon RX 640 Laptops

    Main Specs

      Radeon 520 Radeon RX 640
    Power consumption (TDP) 50 Watt 50 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x8
    Supplementary power connectors None None
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x VGA 1x DVI, 1x HDMI, 1x DisplayPort
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    • Both graphics cards have the same power consumption of 50 Watt.
    • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
    • Radeon RX 640 has 2 GB more memory, than Radeon 520.
    • Both cards are used in Laptops.
    • Radeon 520 is build with GCN 1.0 architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 188 MHz higher, than Radeon 520.
    • Radeon 520 is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 3750 MHz higher, than Radeon 520.

    Game benchmarks

    high / 1080p 0−1 5−6
    ultra / 1080p − 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 1−2 16−18
    medium / 1080p 0−1 7−8
    The average gaming FPS of Radeon RX 640 in Assassin's Creed Odyssey is 1600% more, than Radeon 520.

    Full Specs

      Radeon 520 Radeon RX 640
    Architecture GCN 1.0 Polaris
    Code name Oland Polaris 12
    Type Laptop Laptop
    Release date 21 March 2017 12 August 2019
    Pipelines 320 640
    Core clock speed 1030 MHz 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 1,040 million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 20.60 38.98
    Floating-point performance 659.2 gflops
    Memory bus width 64 Bit 64 Bit
    Memory clock speed 2250 MHz 6000 MHz
    Memory bandwidth 16 GB/s 112.0 GB/s
    Shared memory - -
    DirectX 12.0 12 (12_0)
    Shader Model 5.0 6.4
    OpenGL 4.6 4.6
    OpenCL 1.2 2.0
    Vulkan + 1.2.131
    FreeSync +
    Laptop size large
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