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    Iris Plus Graphics 645 vs Radeon HD 4850 X2

    When comparing Iris Plus Graphics 645 and Radeon HD 4850 X2, 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 Iris Plus Graphics 645 and Radeon HD 4850 X2 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Iris Plus Graphics 645 Check Price
    Radeon HD 4850 X2

    Iris Plus Graphics 645 is a Laptop Graphics Card

    Note: Iris Plus Graphics 645 is only used in laptop graphics. It has 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 here:

    Iris Plus Graphics 645 Laptops

    Main Specs

      Iris Plus Graphics 645 Radeon HD 4850 X2
    Power consumption (TDP) 15 Watt 250 Watt
    Interface PCIe 3.0 x1 PCIe 2.0 x16
    Supplementary power connectors 1x 6-pin + 1x 8-pin
    Memory type DDR3/DDR4 GDDR3
    Maximum RAM amount 512 MB
    Display Connectors No outputs 4x DVI, 1x S-Video
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    • Radeon HD 4850 X2 has 1566% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon HD 4850 X2 uses PCIe 2.0 x16 interface.
    • Iris Plus Graphics 645 is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon HD 4850 X2 - with TeraScale.
    • Core clock speed of Radeon HD 4850 X2 is 325 MHz higher, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.

    Game benchmarks

    high / 1080p 4−5 3−4
    ultra / 1080p 2−3 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 14−16
    medium / 1080p 5−6 5−6
    Iris Plus Graphics 645 and Radeon HD 4850 X2 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      Iris Plus Graphics 645 Radeon HD 4850 X2
    Architecture Gen. 9.5 Coffee Lake TeraScale
    Code name Kaby Lake GT3e R700
    Type Laptop Desktop
    Release date 10 July 2019 7 November 2008
    Pipelines 48 800
    Core clock speed 300 MHz 625 MHz
    Boost Clock 1150 MHz
    Transistor count 956 million
    Manufacturing process technology 14 nm 55 nm
    Texture fill rate 50.40 25.00
    Floating-point performance 2x 1,000.0 gflops
    Length 267 mm
    Memory bus width 256 Bit
    Memory clock speed 1990 MHz
    Memory bandwidth 63.68 GB/s
    Shared memory +
    DirectX 12 (12_1) 10.1 (10_1)
    Shader Model 6.4 4.1
    OpenGL 4.6 3.3
    OpenCL 2.1 1.1
    Vulkan 1.1.103 N/A
    Quick Sync +
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