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    Radeon R9 M390X vs UHD Graphics 620

    When comparing Radeon R9 M390X and UHD Graphics 620, 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 UHD Graphics 620 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
    UHD Graphics 620 Check Price

    Radeon R9 M390X and UHD Graphics 620 are Laptop Graphics Cards

    Note: Radeon R9 M390X and UHD Graphics 620 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 UHD Graphics 620 here:

    Radeon R9 M390X Laptops
    UHD Graphics 620 Laptops

    Main Specs

      Radeon R9 M390X UHD Graphics 620
    Power consumption (TDP) 100 Watt 15 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x1
    Supplementary power connectors None
    Memory type GDDR5 LPDDR3/DDR4
    Maximum RAM amount 4 GB 32 GB
    Display Connectors No outputs No outputs
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    • Radeon R9 M390X has 566% more power consumption, than UHD Graphics 620.
    • Radeon R9 M390X is connected by PCIe 3.0 x16, and UHD Graphics 620 uses PCIe 3.0 x1 interface.
    • UHD Graphics 620 has 28 GB more memory, than Radeon R9 M390X.
    • Both cards are used in Laptops.
    • Radeon R9 M390X is build with GCN 3 architecture, and UHD Graphics 620 - with Gen. 9.5.
    • Core clock speed of Radeon R9 M390X is 423 MHz higher, than UHD Graphics 620.
    • Radeon R9 M390X is manufactured by 28 nm process technology, and UHD Graphics 620 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 21−24 2−3
    ultra / 1080p 12−14 0−1
    QHD / 1440p 8−9 0−1
    4K / 2160p 5−6 −
    low / 720p 40−45 12−14
    medium / 1080p 27−30 3−4
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 416% more, than UHD Graphics 620.

    Full Specs

      Radeon R9 M390X UHD Graphics 620
    Architecture GCN 3 Gen. 9.5
    Code name Amethyst (XT) / Tonga Kaby-Lake-Refresh GT2
    Type Laptop Laptop
    Release date 9 June 2015 1 September 2017
    Pipelines 2048 24
    Core clock speed 723 MHz 300 MHz
    Boost Clock 1150 MHz
    Transistor count 5,000 million 189 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 92.54 27.60
    Floating-point performance 2,961 gflops
    Memory bus width 256 Bit 64/128 Bit
    Memory bandwidth 160.0 GB/s
    Shared memory - +
    DirectX 12 (12_1)
    Shader Model 6.3 6.4
    OpenGL 4.4 4.6
    OpenCL Not Listed 2.1
    Vulkan + 1.1.103
    FreeSync +
    Bus support PCIe 3.0
    Laptop size large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Quick Sync +
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