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    Iris Plus Graphics 645 vs Quadro P620

    When choosing between Iris Plus Graphics 645 and Quadro P620, 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 Quadro P620.
    Iris Plus Graphics 645 Check Price
    Quadro P620 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

      Iris Plus Graphics 645 Quadro P620
    Power consumption (TDP) 15 Watt 40 Watt
    Interface PCIe 3.0 x1 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors No outputs 4x mini-DisplayPort
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    • Quadro P620 has 166% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Quadro P620 uses PCIe 3.0 x16 interface.
    • Iris Plus Graphics 645 is used in Laptops, and Quadro P620 - in Desktops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Quadro P620 - with Pascal.
    • Core clock speed of Quadro P620 is 877 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 and Quadro P620 are manufactured by 14 nm process technology.

    Game benchmarks

    high / 1080p 4−5 18−20
    ultra / 1080p 2−3 10−12
    QHD / 1440p 0−1 5−6
    4K / 2160p − 4−5
    low / 720p 12−14 35−40
    medium / 1080p 5−6 21−24
    The average gaming FPS of Quadro P620 in Assassin's Creed Odyssey is 266% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Quadro P620
    Architecture Gen. 9.5 Coffee Lake Pascal
    Code name Kaby Lake GT3e GP107
    Type Laptop Workstation
    Release date 10 July 2019 27 May 2019
    Pipelines 48 512
    Core clock speed 300 MHz 1177 MHz
    Boost Clock 1150 MHz 1442 MHz
    Transistor count 3,300 million
    Manufacturing process technology 14 nm 14 nm
    Texture fill rate 50.40 43.33
    Floating-point performance 1,490 gflops
    Length 145 mm
    Memory bus width 128 Bit
    Memory clock speed 6000 MHz
    Memory bandwidth 80.13 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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