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    Iris Plus Graphics 645 vs Radeon HD 7770M

    If you are going to buy a new graphics card and are choosing between Iris Plus Graphics 645 and Radeon HD 7770M, 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 Radeon HD 7770M, check out specs charts below.
    Iris Plus Graphics 645 Check Price
    Radeon HD 7770M Check Price

    Iris Plus Graphics 645 and Radeon HD 7770M are Laptop Graphics Cards

    Note: Iris Plus Graphics 645 and Radeon HD 7770M 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 7770M here:

    Iris Plus Graphics 645 Laptops
    Radeon HD 7770M Laptops

    Main Specs

      Iris Plus Graphics 645 Radeon HD 7770M
    Power consumption (TDP) 15 Watt 32 Watt
    Interface PCIe 3.0 x1 PCIe 2.0 x16
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 1 GB
    Display Connectors No outputs No outputs
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    • Radeon HD 7770M has 113% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 7770M uses PCIe 2.0 x16 interface.
    • Both cards are used in Laptops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 7770M - with GCN.
    • Core clock speed of Radeon HD 7770M is 375 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 7770M - by 28 nm process technology.

    Game benchmarks

    high / 1080p 4−5 9−10
    ultra / 1080p 2−3 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 21−24
    medium / 1080p 5−6 10−12
    The average gaming FPS of Radeon HD 7770M in Assassin's Creed Odyssey is 100% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Radeon HD 7770M
    Architecture Gen. 9.5 Coffee Lake GCN
    Code name Kaby Lake GT3e Chelsea XT
    Type Laptop Laptop
    Release date 10 July 2019 24 April 2012
    Pipelines 48 512
    Core clock speed 300 MHz 675 MHz
    Boost Clock 1150 MHz
    Transistor count 1,500 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 21.60
    Floating-point performance 691.2 gflops
    Memory bus width 128 Bit
    Memory clock speed 4000 MHz
    Memory bandwidth 64 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
    Laptop size medium sized
    Quick Sync +
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