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    Iris Plus Graphics 645 vs Quadro K620

    Find out if it is worth upgrading your current GPU setup by comparing Iris Plus Graphics 645 and Quadro K620. 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 Iris Plus Graphics 645 and Quadro K620. 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.
    Iris Plus Graphics 645 Check Price
    Quadro K620 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 K620
    Power consumption (TDP) 15 Watt 41 Watt
    Interface PCIe 3.0 x1 PCIe 2.0 x16
    Supplementary power connectors None
    Memory type DDR3/DDR4 128 Bit
    Maximum RAM amount 2 GB
    Display Connectors No outputs 1x DVI, 1x DisplayPort
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    • Quadro K620 has 173% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Quadro K620 uses PCIe 2.0 x16 interface.
    • Iris Plus Graphics 645 is used in Laptops, and Quadro K620 - in Desktops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Quadro K620 - with Maxwell.
    • Core clock speed of Quadro K620 is 758 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Quadro K620 - by 28 nm process technology.

    Game benchmarks

    high / 1080p 4−5 10−12
    ultra / 1080p 2−3 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 12−14 24−27
    medium / 1080p 5−6 14−16
    The average gaming FPS of Quadro K620 in Assassin's Creed Odyssey is 133% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Quadro K620
    Architecture Gen. 9.5 Coffee Lake Maxwell
    Code name Kaby Lake GT3e GM107
    Type Laptop Workstation
    Release date 10 July 2019 22 July 2014
    Pipelines 48 384
    Core clock speed 300 MHz 1058 MHz
    Boost Clock 1150 MHz 1124 MHz
    Transistor count 1,870 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 26.98
    Floating-point performance 863.2 gflops
    Length 160 mm
    Memory bus width 128 Bit
    Memory clock speed 1800 MHz
    Shared memory +
    DirectX 12 (12_1) 12
    Shader Model 6.4 5
    OpenGL 4.6 4.5
    OpenCL 2.1 1.2
    Vulkan 1.1.103 +
    CUDA 5.0
    Bitcoin / BTC (SHA256) 104 Mh/s
    Quick Sync +
    3D Vision Pro +
    Mosaic +
    Width 1" (2.5 cm)
    Number of simultaneous displays 4
    nView Desktop Management +
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