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    Maxwell GPU Surface Book 940M GDDR5 vs Quadro K420

    When comparing Maxwell GPU Surface Book 940M GDDR5 and Quadro K420, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between Maxwell GPU Surface Book 940M GDDR5 and Quadro K420 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Maxwell GPU Surface Book 940M GDDR5 Check Price
    Quadro K420 Check Price

    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 Quadro K420
    Power consumption (TDP) 41 Watt
    Interface PCIe 2.0 x16
    Supplementary power connectors None
    Memory type GDDR5 128 Bit
    Maximum RAM amount 1 GB 1 GB/2 GB
    Display Connectors 1x DVI, 1x DisplayPort
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    • Maxwell GPU Surface Book 940M GDDR5 and Quadro K420 have maximum RAM of 1 GB.
    • Maxwell GPU Surface Book 940M GDDR5 is used in Laptops, and Quadro K420 - in Desktops.
    • Maxwell GPU Surface Book 940M GDDR5 is build with Maxwell architecture, and Quadro K420 - with Kepler.
    • Core clock speed of Maxwell GPU Surface Book 940M GDDR5 is 78 MHz higher, than Quadro K420.
    • Maxwell GPU Surface Book 940M GDDR5 and Quadro K420 are manufactured by 28 nm process technology.
    • Memory clock speed of Maxwell GPU Surface Book 940M GDDR5 is 3230 MHz higher, than Quadro K420.

    Game benchmarks

    high / 1080p 9−10 0−1
    ultra / 1080p 5−6 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 21−24 9−10
    medium / 1080p 12−14 1−2
    The average gaming FPS of Maxwell GPU Surface Book 940M GDDR5 in Assassin's Creed Odyssey is 240% more, than Quadro K420.

    Full Specs

      Maxwell GPU Surface Book 940M GDDR5 Quadro K420
    Architecture Maxwell Kepler
    Code name Surface Book GK107
    Type Laptop Workstation
    Release date 1 October 2015 22 July 2014
    Pipelines 384 192
    Core clock speed 954 MHz 876 MHz
    Boost Clock 993 MHz
    Transistor count 1,270 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 14.02
    Floating-point performance 336.4 gflops
    Length 160 mm
    Memory bus width 64 Bit 128 Bit
    Memory clock speed 5012 MHz 1782 MHz
    Shared memory -
    DirectX DirectX 12 (FL 11_0), Shader 5.0 12
    Shader Model 5
    OpenGL 4.5
    OpenCL 1.2
    Vulkan +
    CUDA + 3.0
    Bitcoin / BTC (SHA256) 11 Mh/s
    Optimus +
    3D Vision Pro +
    Mosaic +
    Width 1" (2.5 cm)
    Number of simultaneous displays 4
    nView Desktop Management +
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