Subscribe to our YouTube channel ×

    Iris Graphics 5100 vs Radeon HD 4870 X2

    If you are going to buy a new graphics card and are choosing between Iris Graphics 5100 and Radeon HD 4870 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 Graphics 5100 stacks up against Radeon HD 4870 X2, check out specs charts below.
    Iris Graphics 5100 Check Price
    Radeon HD 4870 X2

    Iris Graphics 5100 is a Laptop Graphics Card

    Note: Iris Graphics 5100 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 Graphics 5100 here:

    Iris Graphics 5100 Laptops

    Main Specs

      Iris Graphics 5100 Radeon HD 4870 X2
    Power consumption (TDP) 30 Watt 286 Watt
    Interface PCIe 1.0 x16 PCIe 2.0 x16
    Supplementary power connectors 1x 6-pin + 1x 8-pin
    Memory type System Shared GDDR5
    Maximum RAM amount 1 GB
    Display Connectors No outputs 2x DVI, 1x S-Video
      Check Price
    • Radeon HD 4870 X2 has 853% more power consumption, than Iris Graphics 5100.
    • Iris Graphics 5100 is connected by PCIe 1.0 x16, and Radeon HD 4870 X2 uses PCIe 2.0 x16 interface.
    • Iris Graphics 5100 is used in Laptops, and Radeon HD 4870 X2 - in Desktops.
    • Iris Graphics 5100 is build with Gen. 7.5 Haswell architecture, and Radeon HD 4870 X2 - with TeraScale.
    • Core clock speed of Radeon HD 4870 X2 is 500 MHz higher, than Iris Graphics 5100.
    • Iris Graphics 5100 is manufactured by 22 nm process technology, and Radeon HD 4870 X2 - by 55 nm process technology.

    Game benchmarks

    high / 1080p 3−4 3−4
    ultra / 1080p 1−2 1−2
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 14−16
    medium / 1080p 5−6 6−7
    Iris Graphics 5100 and Radeon HD 4870 X2 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      Iris Graphics 5100 Radeon HD 4870 X2
    Architecture Gen. 7.5 Haswell TeraScale
    Code name Haswell GT3 R700
    Type Laptop Desktop
    Release date 5 June 2013 12 August 2008
    Pipelines 40 800
    Core clock speed 200 MHz 700 MHz
    Boost Clock 1200 MHz
    Transistor count 1,300 million 956 million
    Manufacturing process technology 22 nm 55 nm
    Texture fill rate 48.00 28.00
    Floating-point performance 2x 1,120.0 gflops
    Length 267 mm
    Memory bus width 64/128 Bit 256 Bit
    Memory clock speed 3600 MHz
    Memory bandwidth 115.2 GB/s
    Shared memory +
    DirectX 12 (11_1) 10.1 (10_1)
    Shader Model 5.1 4.1
    OpenGL 4.3 3.3
    OpenCL 1.2 1.1
    Vulkan 1.1.80 N/A
    Quick Sync +
      Check Price

    Similar compares