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    Radeon R9 M390X vs Radeon RX 480 mobile

    When comparing Radeon R9 M390X and Radeon RX 480 mobile, 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 Radeon R9 M390X and Radeon RX 480 mobile is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Radeon R9 M390X Check Price
    Radeon RX 480 mobile Check Price

    Radeon R9 M390X and Radeon RX 480 mobile are Laptop Graphics Cards

    Note: Radeon R9 M390X and Radeon RX 480 mobile are only used in laptop graphics. They have 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 Radeon R9 M390X or Radeon RX 480 mobile here:

    Radeon R9 M390X Laptops
    Radeon RX 480 mobile Laptops

    Main Specs

      Radeon R9 M390X Radeon RX 480 mobile
    Power consumption (TDP) 100 Watt 100 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 8 GB
    Display Connectors No outputs No outputs
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    • Both graphics cards have the same power consumption of 100 Watt.
    • Radeon R9 M390X is connected by PCIe 3.0 x16, and Radeon RX 480 mobile uses MXM-B (3.0) interface.
    • Radeon RX 480 mobile has 4 GB more memory, than Radeon R9 M390X.
    • Both cards are used in Laptops.
    • Radeon R9 M390X is build with GCN 3 architecture, and Radeon RX 480 mobile - with Polaris.
    • Radeon R9 M390X is manufactured by 28 nm process technology, and Radeon RX 480 mobile - by 14 nm process technology.

    Game benchmarks

    high / 1080p 21−24 12−14
    ultra / 1080p 12−14 7−8
    QHD / 1440p 8−9 0−1
    4K / 2160p 5−6 −
    low / 720p 40−45 27−30
    medium / 1080p 27−30 14−16
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 62% more, than Radeon RX 480 mobile.

    Full Specs

      Radeon R9 M390X Radeon RX 480 mobile
    Architecture GCN 3 Polaris
    Code name Amethyst (XT) / Tonga Polaris
    Type Laptop Laptop
    Release date 9 June 2015 1 August 2016
    Pipelines 2048 2304
    Core clock speed 723 MHz
    Boost Clock 1077 MHz
    Transistor count 5,000 million 5,700 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 92.54 155.1
    Floating-point performance 2,961 gflops 4,963 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 8000 MHz
    Memory bandwidth 160.0 GB/s 256.0 GB/s
    Shared memory - -
    DirectX 12 (12_0)
    Shader Model 6.3 6.4
    OpenGL 4.4 4.6
    OpenCL Not Listed 2.0
    Vulkan + 1.2.131
    FreeSync +
    Bus support PCIe 3.0
    Laptop size large large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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