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    Radeon HD 6990M Crossfire vs UHD Graphics 620

    When comparing Radeon HD 6990M Crossfire 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 HD 6990M Crossfire 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 HD 6990M Crossfire Check Price
    UHD Graphics 620 Check Price

    Radeon HD 6990M Crossfire and UHD Graphics 620 are Laptop Graphics Cards

    Note: Radeon HD 6990M Crossfire 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 HD 6990M Crossfire or UHD Graphics 620 here:

    Radeon HD 6990M Crossfire Laptops
    UHD Graphics 620 Laptops

    Main Specs

      Radeon HD 6990M Crossfire UHD Graphics 620
    Power consumption (TDP) 15 Watt
    Interface PCIe 3.0 x1
    Memory type GDDR5 LPDDR3/DDR4
    Maximum RAM amount 2x2 GB 32 GB
    Display Connectors No outputs
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    • UHD Graphics 620 has 30 GB more memory, than Radeon HD 6990M Crossfire.
    • Both cards are used in Laptops.
    • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and UHD Graphics 620 - with Gen. 9.5.
    • Core clock speed of Radeon HD 6990M Crossfire is 415 MHz higher, than UHD Graphics 620.
    • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and UHD Graphics 620 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 35−40 2−3
    ultra / 1080p 21−24 0−1
    QHD / 1440p 16−18 0−1
    4K / 2160p 10−11 −
    low / 720p 60−65 12−14
    medium / 1080p 40−45 3−4
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 683% more, than UHD Graphics 620.

    Full Specs

      Radeon HD 6990M Crossfire UHD Graphics 620
    Architecture Terascale 2 Gen. 9.5
    Code name Blackcomb XTX Kaby-Lake-Refresh GT2
    Type Laptop Laptop
    Release date 12 July 2011 1 September 2017
    Pipelines 2240 24
    Core clock speed 715 MHz 300 MHz
    Boost Clock 1150 MHz
    Transistor count 2x1700 Million 189 million
    Manufacturing process technology 40 nm 14 nm
    Texture fill rate 27.60
    Memory bus width 256 Bit 64/128 Bit
    Memory clock speed 900 MHz
    Shared memory - +
    DirectX DirectX 11, Shader 5.0 12 (12_1)
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.1
    Vulkan 1.1.103
    Laptop size large
    Quick Sync +
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