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    Iris Plus Graphics 645 vs Maxwell GPU Surface Book 940M GDDR5

    If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Maxwell GPU Surface Book 940M GDDR5, 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 Iris Plus Graphics 645 stacks up against Maxwell GPU Surface Book 940M GDDR5, check out specs charts below.
    Iris Plus Graphics 645 Check Price
    Maxwell GPU Surface Book 940M GDDR5 Check Price

    Iris Plus Graphics 645 and Maxwell GPU Surface Book 940M GDDR5 are Laptop Graphics Cards

    Note: Iris Plus Graphics 645 and Maxwell GPU Surface Book 940M GDDR5 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 Iris Plus Graphics 645 or Maxwell GPU Surface Book 940M GDDR5 here:

    Iris Plus Graphics 645 Laptops
    Maxwell GPU Surface Book 940M GDDR5 Laptops

    Main Specs

      Iris Plus Graphics 645 Maxwell GPU Surface Book 940M GDDR5
    Power consumption (TDP) 15 Watt
    Interface PCIe 3.0 x1
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 1 GB
    Display Connectors No outputs
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    • Both cards are used in Laptops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Maxwell GPU Surface Book 940M GDDR5 - with Maxwell.
    • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 654 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Maxwell GPU Surface Book 940M GDDR5 - by 28 nm process technology.

    Game benchmarks

    high / 1080p 4−5 9−10
    ultra / 1080p 2−3 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 21−24
    medium / 1080p 5−6 12−14
    The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 100% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Maxwell GPU Surface Book 940M GDDR5
    Architecture Gen. 9.5 Coffee Lake Maxwell
    Code name Kaby Lake GT3e Surface Book
    Type Laptop Laptop
    Release date 10 July 2019 1 October 2015
    Pipelines 48 384
    Core clock speed 300 MHz 954 MHz
    Boost Clock 1150 MHz 993 MHz
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40
    Memory bus width 64 Bit
    Memory clock speed 5012 MHz
    Shared memory + -
    DirectX 12 (12_1) DirectX 12 (FL 11_0), Shader 5.0
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.1
    Vulkan 1.1.103
    CUDA +
    Optimus +
    Quick Sync +
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