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    GeForce GTX 850A vs Iris Plus Graphics 645

    In this comparison between GeForce GTX 850A and Iris Plus Graphics 645 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 GeForce GTX 850A will be the best choice, for others Iris Plus Graphics 645 will be their preference. Study the comparison tables below and make your choice.
    GeForce GTX 850A
    Iris Plus Graphics 645 Check Price

    Iris Plus Graphics 645 is a Laptop Graphics Card

    Note: Iris Plus Graphics 645 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 Iris Plus Graphics 645 here:

    Iris Plus Graphics 645 Laptops

    Main Specs

      GeForce GTX 850A Iris Plus Graphics 645
    Power consumption (TDP) 45 Watt 15 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x1
    Memory type DDR3 DDR3/DDR4
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 850A has 200% more power consumption, than Iris Plus Graphics 645.
    • GeForce GTX 850A is connected by PCIe 3.0 x16, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • GeForce GTX 850A is used in Desktops, and Iris Plus Graphics 645 - in Laptops.
    • GeForce GTX 850A is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • Core clock speed of GeForce GTX 850A is 602 MHz higher, than Iris Plus Graphics 645.
    • GeForce GTX 850A is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 1−2 4−5
    ultra / 1080p 0−1 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 12−14
    medium / 1080p 3−4 5−6
    The average gaming FPS of Iris Plus Graphics 645 in Assassin's Creed Odyssey is 16% more, than GeForce GTX 850A.

    Full Specs

      GeForce GTX 850A Iris Plus Graphics 645
    Architecture Maxwell Gen. 9.5 Coffee Lake
    Code name GM107 Kaby Lake GT3e
    Type Desktop Laptop
    Release date 17 March 2014 10 July 2019
    Pipelines 640 48
    Core clock speed 902 MHz 300 MHz
    Boost Clock 936 MHz 1150 MHz
    Transistor count 1,870 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 37.44 50.40
    Floating-point performance 1,198 gflops
    Memory bus width 128 Bit
    Memory clock speed 1800 MHz
    Memory bandwidth 28.8 GB/s
    Shared memory +
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.6 4.6
    OpenCL 1.2 2.1
    Vulkan 1.1.126 1.1.103
    CUDA 5.0
    Quick Sync +
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