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    Maxwell GPU Surface Book vs Radeon RX 640

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

    Maxwell GPU Surface Book and Radeon RX 640 are Laptop Graphics Cards

    Note: Maxwell GPU Surface Book 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 Maxwell GPU Surface Book or Radeon RX 640 here:

    Maxwell GPU Surface Book Laptops
    Radeon RX 640 Laptops

    Main Specs

      Maxwell GPU Surface Book Radeon RX 640
    Power consumption (TDP) 50 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 1 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon RX 640 has 3 GB more memory, than Maxwell GPU Surface Book.
    • Both cards are used in Laptops.
    • Maxwell GPU Surface Book is build with Maxwell architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 264 MHz higher, than Maxwell GPU Surface Book.
    • Maxwell GPU Surface Book is manufactured by 28 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 988 MHz higher, than Maxwell GPU Surface Book.

    Game benchmarks

    high / 1080p 8−9 5−6
    ultra / 1080p 5−6 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 20−22 16−18
    medium / 1080p 10−12 7−8
    The average gaming FPS of Maxwell GPU Surface Book in Assassin's Creed Odyssey is 37% more, than Radeon RX 640.

    Full Specs

      Maxwell GPU Surface Book Radeon RX 640
    Architecture Maxwell Polaris
    Code name Surface Book Polaris 12
    Type Laptop Laptop
    Release date 1 October 2015 12 August 2019
    Pipelines 384 640
    Core clock speed 954 MHz 1218 MHz
    Boost Clock 993 MHz 1218 MHz
    Transistor count 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 38.98
    Memory bus width 64 Bit 64 Bit
    Memory clock speed 5012 MHz 6000 MHz
    Memory bandwidth 112.0 GB/s
    Shared memory - -
    DirectX DirectX 12 (FL 11_0), Shader 5.0 12 (12_0)
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.0
    Vulkan 1.2.131
    CUDA +
    FreeSync +
    Laptop size large
    Optimus +
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