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    Iris Pro Graphics P580 vs Radeon HD 4850 X2

    If you are going to buy a new graphics card and are choosing between Iris Pro Graphics P580 and Radeon HD 4850 X2, 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 Pro Graphics P580 stacks up against Radeon HD 4850 X2, check out specs charts below.
    Iris Pro Graphics P580 Check Price
    Radeon HD 4850 X2

    Iris Pro Graphics P580 is a Laptop Graphics Card

    Note: Iris Pro Graphics P580 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 Pro Graphics P580 here:

    Iris Pro Graphics P580 Laptops

    Main Specs

      Iris Pro Graphics P580 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 DDR3L/LPDDR3/DDR4 GDDR3
    Maximum RAM amount 64 GB 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 Pro Graphics P580.
    • Iris Pro Graphics P580 is connected by PCIe 3.0 x1, and Radeon HD 4850 X2 uses PCIe 2.0 x16 interface.
    • Radeon HD 4850 X2 has 448 GB more memory, than Iris Pro Graphics P580.
    • Iris Pro Graphics P580 is used in Laptops, and Radeon HD 4850 X2 - in Desktops.
    • Iris Pro Graphics P580 is build with Gen. 9 Skylake architecture, and Radeon HD 4850 X2 - with TeraScale.
    • Core clock speed of Radeon HD 4850 X2 is 275 MHz higher, than Iris Pro Graphics P580.
    • Iris Pro Graphics P580 is manufactured by 14 nm process technology, and Radeon HD 4850 X2 - by 55 nm process technology.

    Game benchmarks

    high / 1080p 10−11 3−4
    ultra / 1080p 6−7 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 21−24 14−16
    medium / 1080p 12−14 5−6
    The average gaming FPS of Iris Pro Graphics P580 in Assassin's Creed Odyssey is 116% more, than Radeon HD 4850 X2.

    Full Specs

      Iris Pro Graphics P580 Radeon HD 4850 X2
    Architecture Gen. 9 Skylake TeraScale
    Code name Skylake GT4e R700
    Type Laptop Desktop
    Release date 1 September 2015 7 November 2008
    Pipelines 72 800
    Core clock speed 350 MHz 625 MHz
    Boost Clock 1100 MHz
    Transistor count 189 million 956 million
    Manufacturing process technology 14 nm 55 nm
    Texture fill rate 75.60 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 1.1.97 N/A
    Quick Sync +
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