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    Iris Plus Graphics 645 vs Radeon HD 7970M

    When choosing between Iris Plus Graphics 645 and Radeon HD 7970M, 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 Radeon HD 7970M.
    Iris Plus Graphics 645 Check Price
    Radeon HD 7970M Check Price

    Iris Plus Graphics 645 and Radeon HD 7970M are Laptop Graphics Cards

    Note: Iris Plus Graphics 645 and Radeon HD 7970M 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 Radeon HD 7970M here:

    Iris Plus Graphics 645 Laptops
    Radeon HD 7970M Laptops

    Main Specs

      Iris Plus Graphics 645 Radeon HD 7970M
    Power consumption (TDP) 15 Watt 100 Watt
    Interface PCIe 3.0 x1 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • Radeon HD 7970M has 566% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 7970M uses MXM-B (3.0) interface.
    • Both cards are used in Laptops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 7970M - with GCN.
    • Core clock speed of Radeon HD 7970M is 550 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 7970M - by 28 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 Radeon HD 7970M in Assassin's Creed Odyssey is 266% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Radeon HD 7970M
    Architecture Gen. 9.5 Coffee Lake GCN
    Code name Kaby Lake GT3e Wimbledon XT
    Type Laptop Laptop
    Release date 10 July 2019 1 May 2012
    Pipelines 48 1280
    Core clock speed 300 MHz 850 MHz
    Boost Clock 1150 MHz
    Transistor count 2,800 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 68.00
    Floating-point performance 2,176 gflops
    Memory bus width 256 Bit
    Memory clock speed 4800 MHz
    Memory bandwidth 153.6 GB/s
    Shared memory + -
    DirectX 12 (12_1) 12 (11_1)
    Shader Model 6.4 5.1
    OpenGL 4.6 4.6
    OpenCL 2.1 1.2
    Vulkan 1.1.103 1.2.131
    Bitcoin / BTC (SHA256) 254 Mh/s
    Laptop size large
    Quick Sync +
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