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    GeForce 940A vs Iris Plus Graphics 645

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 940A and Iris Plus Graphics 645. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce 940A and Iris Plus Graphics 645. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce 940A
    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 940A Iris Plus Graphics 645
    Power consumption (TDP) 33 Watt 15 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x1
    Memory type DDR3 DDR3/DDR4
    Maximum RAM amount 1 GB
    Display Connectors No outputs No outputs
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    • GeForce 940A has 120% more power consumption, than Iris Plus Graphics 645.
    • GeForce 940A is connected by PCIe 3.0 x8, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • GeForce 940A is used in Desktops, and Iris Plus Graphics 645 - in Laptops.
    • GeForce 940A is build with Maxwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • Core clock speed of GeForce 940A is 729 MHz higher, than Iris Plus Graphics 645.
    • GeForce 940A is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 4−5 4−5
    ultra / 1080p 2−3 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 12−14
    medium / 1080p 5−6 5−6
    GeForce 940A and Iris Plus Graphics 645 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      GeForce 940A Iris Plus Graphics 645
    Architecture Maxwell Gen. 9.5 Coffee Lake
    Code name GM108 Kaby Lake GT3e
    Type Desktop Laptop
    Release date 13 March 2015 10 July 2019
    Pipelines 384 48
    Core clock speed 1029 MHz 300 MHz
    Boost Clock 1124 MHz 1150 MHz
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 17.98 50.40
    Floating-point performance 863.2 gflops
    Memory bus width 64 Bit
    Memory clock speed 2002 MHz
    Memory bandwidth 16.02 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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