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    Radeon R9 M390X vs Radeon RX 550

    When comparing Radeon R9 M390X and Radeon RX 550, 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 550 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 550 Check Price

    Radeon R9 M390X is a Laptop Graphics Card

    Note: Radeon R9 M390X 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 Radeon R9 M390X here:

    Radeon R9 M390X Laptops

    Main Specs

      Radeon R9 M390X Radeon RX 550
    Power consumption (TDP) 100 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 4 GB 4 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon R9 M390X has 100% more power consumption, than Radeon RX 550.
    • Radeon R9 M390X is connected by PCIe 3.0 x16, and Radeon RX 550 uses PCIe 3.0 x8 interface.
    • Radeon R9 M390X and Radeon RX 550 have maximum RAM of 4 GB.
    • Radeon R9 M390X is used in Laptops, and Radeon RX 550 - in Desktops.
    • Radeon R9 M390X is build with GCN 3 architecture, and Radeon RX 550 - with GCN 4.0.
    • Core clock speed of Radeon RX 550 is 377 MHz higher, than Radeon R9 M390X.
    • Radeon R9 M390X is manufactured by 28 nm process technology, and Radeon RX 550 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 21−24 14−16
    ultra / 1080p 12−14 8−9
    QHD / 1440p 8−9 3−4
    4K / 2160p 5−6 −
    low / 720p 40−45 30−33
    medium / 1080p 27−30 18−20
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 53% more, than Radeon RX 550.

    Full Specs

      Radeon R9 M390X Radeon RX 550
    Architecture GCN 3 GCN 4.0
    Code name Amethyst (XT) / Tonga Lexa
    Type Laptop Desktop
    Release date 9 June 2015 20 April 2017
    Pipelines 2048 512
    Core clock speed 723 MHz 1100 MHz
    Boost Clock 1183 MHz
    Transistor count 5,000 million 2,200 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 92.54 37.86
    Floating-point performance 2,961 gflops 1,211 gflops
    Length 145 mm
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 7000 MHz
    Memory bandwidth 160.0 GB/s 112.0 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
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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