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    GeForce GTX 870M vs Iris Plus Graphics 645

    When comparing GeForce GTX 870M and Iris Plus Graphics 645, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GTX 870M and Iris Plus Graphics 645 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GTX 870M Check Price
    Iris Plus Graphics 645 Check Price

    GeForce GTX 870M and Iris Plus Graphics 645 are Laptop Graphics Cards

    Note: GeForce GTX 870M 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 GeForce GTX 870M or Iris Plus Graphics 645 here:

    GeForce GTX 870M Laptops
    Iris Plus Graphics 645 Laptops

    Main Specs

      GeForce GTX 870M Iris Plus Graphics 645
    Power consumption (TDP) 100 Watt 15 Watt
    Interface MXM-B (3.0) PCIe 3.0 x1
    Supplementary power connectors None
    Memory type GDDR5 DDR3/DDR4
    Maximum RAM amount 6 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 870M has 566% more power consumption, than Iris Plus Graphics 645.
    • GeForce GTX 870M is connected by MXM-B (3.0), and Iris Plus Graphics 645 uses PCIe 3.0 x1 interface.
    • Both cards are used in Laptops.
    • GeForce GTX 870M is build with Kepler architecture, and Iris Plus Graphics 645 - with Gen. 9.5 Coffee Lake.
    • Core clock speed of GeForce GTX 870M is 641 MHz higher, than Iris Plus Graphics 645.
    • GeForce GTX 870M is manufactured by 28 nm process technology, and Iris Plus Graphics 645 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 16−18 4−5
    ultra / 1080p 10−11 2−3
    QHD / 1440p 4−5 0−1
    low / 720p 35−40 12−14
    medium / 1080p 21−24 5−6
    The average gaming FPS of GeForce GTX 870M in Assassin's Creed Odyssey is 250% more, than Iris Plus Graphics 645.

    Full Specs

      GeForce GTX 870M Iris Plus Graphics 645
    Architecture Kepler Gen. 9.5 Coffee Lake
    Code name N15P-GT Kaby Lake GT3e
    Type Laptop Laptop
    Release date 12 March 2014 10 July 2019
    Pipelines 1344 48
    Core clock speed 941 MHz 300 MHz
    Boost Clock 967 MHz 1150 MHz
    Transistor count 3,540 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 108.3 50.40
    Floating-point performance 2,599 gflops
    Memory bus width 192 Bit
    Memory bandwidth 120.0 GB/s
    Shared memory - +
    DirectX 12 (11_0) 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 2.1
    Vulkan 1.1.126 1.1.103
    CUDA +
    CUDA cores 1344
    Bus support PCI Express 2.0, PCI Express 3.0
    SLI options +
    HDMI +
    Bitcoin / BTC (SHA256) 82 Mh/s
    Laptop size large
    Standard memory configuration GDDR5
    eDP 1.2 signal support Up to 3840x2160
    LVDS signal support Up to 1920x1200
    DisplayPort Multimode (DP++) support Up to 3840x2160
    HDCP content protection +
    7.1 channel HD audio on HDMI +
    TrueHD and DTS-HD audio bitstreaming +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus +
    Quick Sync +
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