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    Radeon HD 6990M vs Radeon HD 7660G plus HD 7670M Dual Graphics

    When comparing Radeon HD 6990M and Radeon HD 7660G plus HD 7670M Dual Graphics, 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 and Radeon HD 7660G plus HD 7670M Dual Graphics is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Radeon HD 6990M Check Price
    Radeon HD 7660G plus HD 7670M Dual Graphics Check Price

    Radeon HD 6990M and Radeon HD 7660G plus HD 7670M Dual Graphics are Laptop Graphics Cards

    Note: Radeon HD 6990M and Radeon HD 7660G plus HD 7670M Dual Graphics 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 or Radeon HD 7660G plus HD 7670M Dual Graphics here:

    Radeon HD 6990M Laptops
    Radeon HD 7660G plus HD 7670M Dual Graphics Laptops

    Main Specs

      Radeon HD 6990M Radeon HD 7660G plus HD 7670M Dual Graphics
    Power consumption (TDP) 100 Watt
    Interface MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR5 DDR3,GDDR5
    Maximum RAM amount 2 GB
    Display Connectors No outputs
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    • Both cards are used in Laptops.
    • Radeon HD 6990M and Radeon HD 7660G plus HD 7670M Dual Graphics are build with Terascale 2 architecture.
    • Core clock speed of Radeon HD 6990M is 30 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.
    • Radeon HD 6990M is manufactured by 40 nm process technology, and Radeon HD 7660G plus HD 7670M Dual Graphics - by 40 / 32 nm process technology.
    • Memory clock speed of Radeon HD 7660G plus HD 7670M Dual Graphics is 900 MHz higher, than Radeon HD 6990M.

    Game benchmarks

    high / 1080p 14−16 1−2
    ultra / 1080p 8−9 0−1
    QHD / 1440p 3−4 0−1
    low / 720p 30−33 12−14
    medium / 1080p 16−18 3−4
    The average gaming FPS of Radeon HD 6990M in Assassin's Creed Odyssey is 250% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

    Full Specs

      Radeon HD 6990M Radeon HD 7660G plus HD 7670M Dual Graphics
    Architecture Terascale 2 Terascale 2
    Code name Blackcomb XTX
    Type Laptop Laptop
    Release date 12 July 2011 15 May 2012
    Pipelines 1120 862
    Core clock speed 715 MHz 685 / 600 MHz
    Transistor count 1,700 million
    Manufacturing process technology 40 nm 40 / 32 nm
    Texture fill rate 40.04
    Floating-point performance 1,601.6 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 900 MHz 1800 MHz
    Memory bandwidth 115.2 GB/s
    Shared memory - -
    DirectX 11.2 (11_0) DirectX 11, Shader 5.0
    Shader Model 5.0
    OpenGL 4.4
    OpenCL 1.2
    Vulkan N/A
    Laptop size large medium sized
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