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    Iris Plus Graphics 645 vs Quadro K4000M

    If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Quadro K4000M, 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 Iris Plus Graphics 645 stacks up against Quadro K4000M, check out specs charts below.
    Iris Plus Graphics 645 Check Price
    Quadro K4000M Check Price

    Iris Plus Graphics 645 and Quadro K4000M are Laptop Graphics Cards

    Note: Iris Plus Graphics 645 and Quadro K4000M 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 Iris Plus Graphics 645 or Quadro K4000M here:

    Iris Plus Graphics 645 Laptops
    Quadro K4000M Laptops

    Main Specs

      Iris Plus Graphics 645 Quadro K4000M
    Power consumption (TDP) 15 Watt 100 Watt
    Interface PCIe 3.0 x1 MXM-B (3.0)
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors No outputs No outputs
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    • Quadro K4000M has 566% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Quadro K4000M uses MXM-B (3.0) interface.
    • Iris Plus Graphics 645 is used in Laptops, and Quadro K4000M - in Mobile workstations.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Quadro K4000M - with Kepler.
    • Core clock speed of Quadro K4000M is 300 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Quadro K4000M - by 28 nm process technology.

    Game benchmarks

    high / 1080p 4−5 10−11
    ultra / 1080p 2−3 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 12−14 21−24
    medium / 1080p 5−6 12−14
    The average gaming FPS of Quadro K4000M in Assassin's Creed Odyssey is 116% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Quadro K4000M
    Architecture Gen. 9.5 Coffee Lake Kepler
    Code name Kaby Lake GT3e N14E-Q3
    Type Laptop Mobile workstation
    Release date 10 July 2019 1 June 2012
    Pipelines 48 960
    Core clock speed 300 MHz 600 MHz
    Boost Clock 1150 MHz
    Transistor count 3,540 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 48.08
    Floating-point performance 1,154 gflops
    Memory bus width 256 Bit
    Memory clock speed 2800 MHz
    Memory bandwidth 89.6 GB/s
    Shared memory + -
    DirectX 12 (12_1) 12 (11_0)
    Shader Model 6.4 5.1
    OpenGL 4.6 4.6
    OpenCL 2.1 1.2
    Vulkan 1.1.103 1.1.126
    CUDA +
    Bitcoin / BTC (SHA256) 37 Mh/s
    Laptop size large
    Optimus +
    Quick Sync +
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