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    Iris Plus Graphics 655 vs Radeon R9 280X

    In this comparison between Iris Plus Graphics 655 and Radeon R9 280X you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Iris Plus Graphics 655 will be the best choice, for others Radeon R9 280X will be their preference. Study the comparison tables below and make your choice.
    Iris Plus Graphics 655 Check Price
    Radeon R9 280X Check Price

    Iris Plus Graphics 655 is a Laptop Graphics Card

    Note: Iris Plus Graphics 655 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 655 here:

    Iris Plus Graphics 655 Laptops

    Main Specs

      Iris Plus Graphics 655 Radeon R9 280X
    Power consumption (TDP) 15 Watt 250 Watt
    Interface PCIe 3.0 x1 PCIe 3.0 x16
    Supplementary power connectors 1 x 6-pin + 1 x 8-pin
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 3 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon R9 280X has 1566% more power consumption, than Iris Plus Graphics 655.
    • Iris Plus Graphics 655 is connected by PCIe 3.0 x1, and Radeon R9 280X uses PCIe 3.0 x16 interface.
    • Iris Plus Graphics 655 is used in Laptops, and Radeon R9 280X - in Desktops.
    • Iris Plus Graphics 655 is build with Gen. 9.5 Kaby Lake architecture, and Radeon R9 280X - with GCN.
    • Iris Plus Graphics 655 is manufactured by 14 nm process technology, and Radeon R9 280X - by 28 nm process technology.

    Game benchmarks

    high / 1080p 12−14 35−40
    ultra / 1080p 7−8 21−24
    QHD / 1440p 2−3 16−18
    4K / 2160p − 10−11
    low / 720p 27−30 60−65
    medium / 1080p 16−18 40−45
    The average gaming FPS of Radeon R9 280X in Assassin's Creed Odyssey is 176% more, than Iris Plus Graphics 655.

    Full Specs

      Iris Plus Graphics 655 Radeon R9 280X
    Architecture Gen. 9.5 Kaby Lake GCN
    Code name Kaby Lake GT3e Thaiti XTL
    Type Laptop Desktop
    Release date 1 September 2017 8 October 2013
    Pipelines 48 2048
    Core clock speed 300 MHz
    Boost Clock 1200 MHz 1000 MHz
    Transistor count 189 million 4,313 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 128.0
    Floating-point performance 4,096 gflops
    Length 275 mm
    Memory bus width 384 Bit
    Memory bandwidth 288 GB/s
    Shared memory + -
    DirectX 12 (12_1)
    Shader Model 6.4 5.1
    OpenGL 4.6 4.6
    OpenCL 2.1 1.2
    Vulkan 1.1.103 +
    Monero / XMR (CryptoNight) 0.5 kh/s
    FreeSync +
    Bus support PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 494 Mh/s
    Eyefinity +
    HD3D +
    TrueAudio +
    Design reference
    DisplayPort support +
    CrossFire +
    DDMA audio +
    Decred / DCR (Decred) 1.07 Gh/s
    Ethereum / ETH (DaggerHashimoto) 14.42 Mh/s
    Zcash / ZEC (Equihash) 285 Sol/s
    Quick Sync +
    AppAcceleration +
    LiquidVR +
    TressFX +
    UVD +
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