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    HD Graphics 5300 vs Iris Plus Graphics 645

    If you are going to buy a new graphics card and are choosing between HD Graphics 5300 and Iris Plus Graphics 645, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the HD Graphics 5300 stacks up against Iris Plus Graphics 645, check out specs charts below.
    HD Graphics 5300 Check Price
    Iris Plus Graphics 645 Check Price

    HD Graphics 5300 and Iris Plus Graphics 645 are Laptop Graphics Cards

    Note: HD Graphics 5300 and Iris Plus Graphics 645 are only used in laptop graphics. They have 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 HD Graphics 5300 or Iris Plus Graphics 645 here:

    HD Graphics 5300 Laptops
    Iris Plus Graphics 645 Laptops

    Main Specs

      HD Graphics 5300 Iris Plus Graphics 645
    Power consumption (TDP) 15 Watt 15 Watt
    Interface PCIe 2.0 x1 PCIe 3.0 x1
    Memory type System Shared DDR3/DDR4
    Display Connectors No outputs No outputs
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    • Both graphics cards have the same power consumption of 15 Watt.
    • HD Graphics 5300 is connected by PCIe 2.0 x1, and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • Both cards are used in Laptops.
    • HD Graphics 5300 is build with Gen. 8 Broadwell architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • Core clock speed of Iris Plus Graphics 645 is 200 MHz higher, than HD Graphics 5300.
    • HD Graphics 5300 and Iris Plus Graphics 645 are manufactured by 14 nm process technology.

    Game benchmarks

    high / 1080p 0−1 4−5
    ultra / 1080p − 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 0−1 12−14
    medium / 1080p 0−1 5−6

    Full Specs

      HD Graphics 5300 Iris Plus Graphics 645
    Architecture Gen. 8 Broadwell Gen. 9.5 Coffee Lake
    Code name Broadwell GT2 Kaby Lake GT3e
    Type Laptop Laptop
    Release date 5 September 2014 10 July 2019
    Pipelines 24 48
    Core clock speed 100 MHz 300 MHz
    Boost Clock 900 MHz 1150 MHz
    Transistor count 1,300 million
    Manufacturing process technology 14 nm 14 nm
    Texture fill rate 21.60 50.40
    Memory bus width 64/128 Bit
    Shared memory + +
    DirectX 12 (11_1) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.4 4.6
    OpenCL 2.0 2.1
    Vulkan 1.1.80 1.1.103
    Quick Sync + +
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