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    Radeon RX 550X mobile vs Radeon RX 640

    If you are going to buy a new graphics card and are choosing between Radeon RX 550X mobile 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 RX 550X mobile stacks up against Radeon RX 640, check out specs charts below.
    Radeon RX 550X mobile Check Price
    Radeon RX 640 Check Price

    Radeon RX 550X mobile and Radeon RX 640 are Laptop Graphics Cards

    Note: Radeon RX 550X mobile 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 RX 550X mobile or Radeon RX 640 here:

    Radeon RX 550X mobile Laptops
    Radeon RX 640 Laptops

    Main Specs

      Radeon RX 550X mobile Radeon RX 640
    Power consumption (TDP) 50 Watt 50 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
      Check Price Check Price
    • 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 550X mobile and Radeon RX 640 have maximum RAM of 4 GB.
    • Both cards are used in Laptops.
    • Radeon RX 550X mobile and Radeon RX 640 are build with Polaris architecture.
    • Core clock speed of Radeon RX 640 is 42 MHz higher, than Radeon RX 550X mobile.
    • Radeon RX 550X mobile and Radeon RX 640 are manufactured by 14 nm process technology.
    • Memory clock speed of Radeon RX 550X mobile is 1000 MHz higher, than Radeon RX 640.

    Game benchmarks

    high / 1080p 14−16 5−6
    ultra / 1080p 9−10 3−4
    QHD / 1440p 3−4 2−3
    low / 720p 30−35 16−18
    medium / 1080p 20−22 7−8
    The average gaming FPS of Radeon RX 550X mobile in Assassin's Creed Odyssey is 128% more, than Radeon RX 640.

    Full Specs

      Radeon RX 550X mobile Radeon RX 640
    Architecture Polaris Polaris
    Code name Polaris 12 Polaris 12
    Type Laptop Laptop
    Release date 10 January 2019 12 August 2019
    Pipelines 640 640
    Core clock speed 1176 MHz 1218 MHz
    Boost Clock 1287 MHz 1218 MHz
    Transistor count 2,200 million 2,200 million
    Manufacturing process technology 14 nm 14 nm
    Texture fill rate 51.48 38.98
    Memory bus width 128 Bit 64 Bit
    Memory clock speed 7000 MHz 6000 MHz
    Memory bandwidth 96 GB/s 112.0 GB/s
    Shared memory - -
    DirectX 12 (12_0) 12 (12_0)
    Shader Model 6.4 6.4
    OpenGL 4.6 4.6
    OpenCL 2.0 2.0
    Vulkan 1.2.131 1.2.131
    FreeSync + +
    Laptop size large large
      Check Price Check Price

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