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    Radeon HD 7660G plus HD 7670M Dual Graphics vs Radeon R9 M390X

    When choosing between Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M390X, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M390X.
    Radeon HD 7660G plus HD 7670M Dual Graphics Check Price
    Radeon R9 M390X Check Price

    Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M390X are Laptop Graphics Cards

    Note: Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R9 M390X 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 7660G plus HD 7670M Dual Graphics or Radeon R9 M390X here:

    Radeon HD 7660G plus HD 7670M Dual Graphics Laptops
    Radeon R9 M390X Laptops

    Main Specs

      Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R9 M390X
    Power consumption (TDP) 100 Watt
    Interface PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3,GDDR5 GDDR5
    Maximum RAM amount 4 GB
    Display Connectors No outputs
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    • Both cards are used in Laptops.
    • Radeon HD 7660G plus HD 7670M Dual Graphics is build with Terascale 2 architecture, and Radeon R9 M390X - with GCN 3.
    • Core clock speed of Radeon R9 M390X is 38 MHz higher, than Radeon HD 7660G plus HD 7670M Dual Graphics.
    • Radeon HD 7660G plus HD 7670M Dual Graphics is manufactured by 40 / 32 nm process technology, and Radeon R9 M390X - by 28 nm process technology.

    Game benchmarks

    high / 1080p 1−2 21−24
    ultra / 1080p 0−1 12−14
    QHD / 1440p 0−1 8−9
    4K / 2160p − 5−6
    low / 720p 12−14 40−45
    medium / 1080p 3−4 27−30
    The average gaming FPS of Radeon R9 M390X in Assassin's Creed Odyssey is 416% more, than Radeon HD 7660G plus HD 7670M Dual Graphics.

    Full Specs

      Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R9 M390X
    Architecture Terascale 2 GCN 3
    Code name Amethyst (XT) / Tonga
    Type Laptop Laptop
    Release date 15 May 2012 9 June 2015
    Pipelines 862 2048
    Core clock speed 685 / 600 MHz 723 MHz
    Transistor count 5,000 million
    Manufacturing process technology 40 / 32 nm 28 nm
    Texture fill rate 92.54
    Floating-point performance 2,961 gflops
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 1800 MHz
    Memory bandwidth 160.0 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0
    Shader Model 6.3
    OpenGL 4.4
    OpenCL Not Listed
    Vulkan +
    FreeSync +
    Bus support PCIe 3.0
    Laptop size medium sized large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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