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    Iris Plus Graphics 645 vs P104 100

    When choosing between Iris Plus Graphics 645 and P104 100, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Iris Plus Graphics 645 and P104 100.
    Iris Plus Graphics 645 Check Price
    P104 100

    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

      Iris Plus Graphics 645 P104 100
    Power consumption (TDP) 15 Watt
    Interface PCIe 3.0 x1 PCIe 3.0 x16
    Supplementary power connectors 1x 8-pin
    Memory type DDR3/DDR4 GDDR5X
    Maximum RAM amount 4 GB
    Display Connectors No outputs No outputs
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    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and P104 100 uses PCIe 3.0 x16 interface.
    • Iris Plus Graphics 645 is used in Laptops, and P104 100 - in Desktops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and P104 100 - with Pascal.
    • Core clock speed of P104 100 is 1307 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and P104 100 - by 16 nm process technology.

    Game benchmarks

    high / 1080p 4−5 35−40
    ultra / 1080p 2−3 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 12−14 60−65
    medium / 1080p 5−6 40−45
    The average gaming FPS of P104 100 in Assassin's Creed Odyssey is 583% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 P104 100
    Architecture Gen. 9.5 Coffee Lake Pascal
    Code name Kaby Lake GT3e GP104
    Type Laptop Desktop
    Release date 10 July 2019 12 December 2017
    Pipelines 48 1920
    Core clock speed 300 MHz 1607 MHz
    Boost Clock 1150 MHz 1733 MHz
    Transistor count 7,200 million
    Manufacturing process technology 14 nm 16 nm
    Texture fill rate 50.40 208.0
    Floating-point performance 8,873 gflops
    Length 267 mm
    Memory bus width 256 Bit
    Memory clock speed 10008 MHz
    Memory bandwidth 320.3 GB/s
    Shared memory +
    DirectX 12 (12_1) 12 (12_1)
    Shader Model 6.4 6.4
    OpenGL 4.6 4.6
    OpenCL 2.1 1.2
    Vulkan 1.1.103 1.2.131
    CUDA 6.1
    Quick Sync +
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