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    Maxwell GPU Surface Book 940M GDDR5 vs Radeon 550X

    If you are going to buy a new graphics card and are choosing between Maxwell GPU Surface Book 940M GDDR5 and Radeon 550X, 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 940M GDDR5 stacks up against Radeon 550X, check out specs charts below.
    Maxwell GPU Surface Book 940M GDDR5 Check Price
    Radeon 550X

    Maxwell GPU Surface Book 940M GDDR5 is a Laptop Graphics Card

    Note: Maxwell GPU Surface Book 940M GDDR5 is only used in laptop graphics. It has 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 940M GDDR5 here:

    Maxwell GPU Surface Book 940M GDDR5 Laptops

    Main Specs

      Maxwell GPU Surface Book 940M GDDR5 Radeon 550X
    Power consumption (TDP) 50 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 1 GB 2 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon 550X has 1 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
    • Maxwell GPU Surface Book 940M GDDR5 is used in Laptops, and Radeon 550X - in Desktops.
    • Maxwell GPU Surface Book 940M GDDR5 is build with Maxwell architecture, and Radeon 550X - with GCN 4.0.
    • Core clock speed of Radeon 550X is 128 MHz higher, than Maxwell GPU Surface Book 940M GDDR5.
    • Maxwell GPU Surface Book 940M GDDR5 is manufactured by 28 nm process technology, and Radeon 550X - by 14 nm process technology.
    • Memory clock speed of Radeon 550X is 1988 MHz higher, than Maxwell GPU Surface Book 940M GDDR5.

    Game benchmarks

    high / 1080p 9−10 7−8
    ultra / 1080p 5−6 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 21−24 16−18
    medium / 1080p 12−14 9−10
    The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 33% more, than Radeon 550X.

    Full Specs

      Maxwell GPU Surface Book 940M GDDR5 Radeon 550X
    Architecture Maxwell GCN 4.0
    Code name Surface Book Lexa
    Type Laptop Desktop
    Release date 1 October 2015 27 March 2019
    Pipelines 384 512
    Core clock speed 954 MHz 1082 MHz
    Boost Clock 993 MHz 1218 MHz
    Transistor count 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 38.98
    Length 145 mm
    Memory bus width 64 Bit 128 Bit
    Memory clock speed 5012 MHz 7000 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 +
    Optimus +
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