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    Iris Plus Graphics 645 vs Radeon R9 380

    When comparing Iris Plus Graphics 645 and Radeon R9 380, 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 R9 380 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 R9 380 Check Price

    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 R9 380
    Power consumption (TDP) 15 Watt 190 Watt
    Interface PCIe 3.0 x1 PCIe 3.0 x16
    Supplementary power connectors 2 x 6-pin
    Memory type DDR3/DDR4 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon R9 380 has 1166% more power consumption, than Iris Plus Graphics 645.
    • Iris Plus Graphics 645 is connected by PCIe 3.0 x1, and Radeon R9 380 uses PCIe 3.0 x16 interface.
    • Iris Plus Graphics 645 is used in Laptops, and Radeon R9 380 - in Desktops.
    • Iris Plus Graphics 645 is build with Gen. 9.5 Coffee Lake architecture, and Radeon R9 380 - with GCN.
    • Iris Plus Graphics 645 is manufactured by 14 nm process technology, and Radeon R9 380 - by 28 nm process technology.

    Game benchmarks

    high / 1080p 4−5 35−40
    ultra / 1080p 2−3 21−24
    QHD / 1440p 0−1 16−18
    4K / 2160p − 10−11
    low / 720p 12−14 60−65
    medium / 1080p 5−6 40−45
    The average gaming FPS of Radeon R9 380 in Assassin's Creed Odyssey is 583% more, than Iris Plus Graphics 645.

    Full Specs

      Iris Plus Graphics 645 Radeon R9 380
    Architecture Gen. 9.5 Coffee Lake GCN
    Code name Kaby Lake GT3e Tonga Pro
    Type Laptop Desktop
    Release date 10 July 2019 26 June 2015
    Pipelines 48 1792
    Core clock speed 300 MHz
    Boost Clock 1150 MHz 970 MHz
    Transistor count 5,000 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 50.40 108.6
    Floating-point performance 3,476 gflops
    Length 221 mm
    Memory bus width 256 Bit
    Memory clock speed 970 MHz
    Memory bandwidth 182.4 GB/s
    Shared memory + -
    DirectX 12 (12_1)
    Shader Model 6.4 6.3
    OpenGL 4.6 4.5
    OpenCL 2.1 2.0
    Vulkan 1.1.103 +
    Monero / XMR (CryptoNight) 0.48 kh/s
    FreeSync +
    Bus support PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 404 Mh/s
    Eyefinity +
    HD3D +
    PowerTune +
    TrueAudio +
    ZeroCore +
    Mantle +
    Design reference
    Bridgeless CrossFire +
    Number of Eyefinity displays 6
    DisplayPort support +
    CrossFire +
    VCE +
    DDMA audio +
    Decred / DCR (Decred) 0.66 Gh/s
    Ethereum / ETH (DaggerHashimoto) 18 Mh/s
    Zcash / ZEC (Equihash) 168.45 Sol/s
    Quick Sync +
    Compute units 28
    Form factor full height / full length / dual slot
    High bandwidth memory (HBM) -
    LiquidVR +
    FRTC +
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