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    GeForce GT 640M vs Radeon RX 550X mobile

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Radeon RX 550X mobile. 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 RX 550X mobile. 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 RX 550X mobile Check Price

    GeForce GT 640M and Radeon RX 550X mobile are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon RX 550X mobile 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 RX 550X mobile here:

    GeForce GT 640M Laptops
    Radeon RX 550X mobile Laptops

    Main Specs

      GeForce GT 640M Radeon RX 550X mobile
    Power consumption (TDP) 32 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Radeon RX 550X mobile has 56% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon RX 550X mobile uses PCIe 3.0 x8 interface.
    • Radeon RX 550X mobile has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon RX 550X mobile - with Polaris.
    • GeForce GT 640M is manufactured by 28 nm process technology, and Radeon RX 550X mobile - by 14 nm process technology.
    • Memory clock speed of Radeon RX 550X mobile is 5200 MHz higher, than GeForce GT 640M.

    Game benchmarks

    high / 1080p 0−1 14−16
    ultra / 1080p 0−1 9−10
    QHD / 1440p 0−1 3−4
    low / 720p 10−12 30−35
    medium / 1080p 2−3 20−22
    The average gaming FPS of Radeon RX 550X mobile in Assassin's Creed Odyssey is 333% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon RX 550X mobile
    Architecture Kepler Polaris
    Code name N13P-GS Polaris 12
    Type Laptop Laptop
    Release date 22 March 2012 10 January 2019
    Pipelines 384 640
    Core clock speed 1176 MHz
    Boost Clock 645 MHz 1287 MHz
    Transistor count 1,270 million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 51.48
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 7000 MHz
    Memory bandwidth 96 GB/s
    Shared memory - -
    DirectX 12 API 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 2.0
    Vulkan 1.1.126 1.2.131
    CUDA +
    FreeSync +
    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 large
    Optimus +
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