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    GeForce GTX 1660 Ti mobile vs Radeon HD 6990M Crossfire

    When comparing GeForce GTX 1660 Ti mobile and Radeon HD 6990M Crossfire, 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 GeForce GTX 1660 Ti mobile and Radeon HD 6990M Crossfire is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GTX 1660 Ti mobile Check Price
    Radeon HD 6990M Crossfire Check Price

    GeForce GTX 1660 Ti mobile and Radeon HD 6990M Crossfire are Laptop Graphics Cards

    Note: GeForce GTX 1660 Ti mobile and Radeon HD 6990M Crossfire 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 GeForce GTX 1660 Ti mobile or Radeon HD 6990M Crossfire here:

    GeForce GTX 1660 Ti mobile Laptops
    Radeon HD 6990M Crossfire Laptops

    Main Specs

      GeForce GTX 1660 Ti mobile Radeon HD 6990M Crossfire
    Interface PCIe 3.0 x16
    Memory type GDDR6 GDDR5
    Maximum RAM amount 6 GB 2x2 GB
    Display Connectors No outputs
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    • GeForce GTX 1660 Ti mobile has 4 GB more memory, than Radeon HD 6990M Crossfire.
    • Both cards are used in Laptops.
    • GeForce GTX 1660 Ti mobile is build with Turing architecture, and Radeon HD 6990M Crossfire - with Terascale 2.
    • Core clock speed of GeForce GTX 1660 Ti mobile is 740 MHz higher, than Radeon HD 6990M Crossfire.
    • GeForce GTX 1660 Ti mobile is manufactured by 12 nm process technology, and Radeon HD 6990M Crossfire - by 40 nm process technology.
    • Memory clock speed of GeForce GTX 1660 Ti mobile is 11100 MHz higher, than Radeon HD 6990M Crossfire.

    Game benchmarks

    high / 1080p 50−55 35−40
    ultra / 1080p 35−40 21−24
    QHD / 1440p 27−30 16−18
    4K / 2160p 16−18 10−11
    low / 720p 80−85 60−65
    medium / 1080p 60−65 40−45
    The average gaming FPS of GeForce GTX 1660 Ti mobile in Assassin's Creed Odyssey is 43% more, than Radeon HD 6990M Crossfire.

    Full Specs

      GeForce GTX 1660 Ti mobile Radeon HD 6990M Crossfire
    Architecture Turing Terascale 2
    Code name N18E-G0 Blackcomb XTX
    Type Laptop Laptop
    Release date 23 April 2019 12 July 2011
    Pipelines 1536 2240
    Core clock speed 1455 MHz 715 MHz
    Boost Clock 1590 MHz
    Transistor count 6,600 million 2x1700 Million
    Manufacturing process technology 12 nm 40 nm
    Texture fill rate 152.6
    Memory bus width 192 Bit 256 Bit
    Memory clock speed 12000 MHz 900 MHz
    Memory bandwidth 288.0 GB/s
    Shared memory - -
    DirectX 12 (12_1) DirectX 11, Shader 5.0
    Shader Model 6.5
    OpenGL 4.6
    OpenCL 1.2
    Vulkan 1.2.131
    CUDA 7.5
    Laptop size medium sized large
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