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    Maxwell GPU Surface Book 940M GDDR5 vs Mobility Radeon HD 4870 X2

    In this comparison between Maxwell GPU Surface Book 940M GDDR5 and Mobility Radeon HD 4870 X2 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Maxwell GPU Surface Book 940M GDDR5 will be the best choice, for others Mobility Radeon HD 4870 X2 will be their preference. Study the comparison tables below and make your choice.
    Maxwell GPU Surface Book 940M GDDR5 Check Price
    Mobility Radeon HD 4870 X2 Check Price

    Maxwell GPU Surface Book 940M GDDR5 and Mobility Radeon HD 4870 X2 are Laptop Graphics Cards

    Note: Maxwell GPU Surface Book 940M GDDR5 and Mobility Radeon HD 4870 X2 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 940M GDDR5 or Mobility Radeon HD 4870 X2 here:

    Maxwell GPU Surface Book 940M GDDR5 Laptops
    Mobility Radeon HD 4870 X2 Laptops

    Main Specs

      Maxwell GPU Surface Book 940M GDDR5 Mobility Radeon HD 4870 X2
    Interface PCIe 2.0 x16
    Memory type GDDR5 GDDR3, GDDR5
    Maximum RAM amount 1 GB 2 GB
    Display Connectors No outputs
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    • Mobility Radeon HD 4870 X2 has 1 GB more memory, than Maxwell GPU Surface Book 940M GDDR5.
    • Both cards are used in Laptops.
    • Maxwell GPU Surface Book 940M GDDR5 is build with Maxwell architecture, and Mobility Radeon HD 4870 X2 - with Terascale 1.
    • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 404 MHz higher, than Mobility Radeon HD 4870 X2.
    • Maxwell GPU Surface Book 940M GDDR5 is manufactured by 28 nm process technology, and Mobility Radeon HD 4870 X2 - by 55 nm process technology.
    • Memory clock speed of Maxwell GPU Surface Book 940M GDDR5 is 4124 MHz higher, than Mobility Radeon HD 4870 X2.

    Game benchmarks

    high / 1080p 9−10 9−10
    ultra / 1080p 5−6 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 21−24 21−24
    medium / 1080p 12−14 12−14
    Maxwell GPU Surface Book 940M GDDR5 and Mobility Radeon HD 4870 X2 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      Maxwell GPU Surface Book 940M GDDR5 Mobility Radeon HD 4870 X2
    Architecture Maxwell Terascale 1
    Code name Surface Book M98-XT
    Type Laptop Laptop
    Release date 1 October 2015 9 January 2009
    Pipelines 384 1600
    Core clock speed 954 MHz 550 MHz
    Boost Clock 993 MHz
    Transistor count 956 million
    Manufacturing process technology 28 nm 55 nm
    Texture fill rate 22.00
    Floating-point performance 2x 880.0 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 5012 MHz 888 MHz
    Memory bandwidth 89.6 GB/s
    Shared memory - -
    DirectX DirectX 12 (FL 11_0), Shader 5.0 10.1 (10_1)
    Shader Model 4.1
    OpenGL 3.3
    OpenCL 1.1
    Vulkan N/A
    CUDA +
    Laptop size large
    Optimus +
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