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    Radeon HD 7660G plus HD 7670M Dual Graphics vs Radeon R7 M340

    In this comparison between Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R7 M340 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people Radeon HD 7660G plus HD 7670M Dual Graphics will be the best choice, for others Radeon R7 M340 will be their preference. Study the comparison tables below and make your choice.
    Radeon HD 7660G plus HD 7670M Dual Graphics Check Price
    Radeon R7 M340 Check Price

    Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R7 M340 are Laptop Graphics Cards

    Note: Radeon HD 7660G plus HD 7670M Dual Graphics and Radeon R7 M340 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 R7 M340 here:

    Radeon HD 7660G plus HD 7670M Dual Graphics Laptops
    Radeon R7 M340 Laptops

    Main Specs

      Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R7 M340
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3,GDDR5 DDR3
    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 R7 M340 - with GCN.
    • Core clock speed of Radeon R7 M340 is 336 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 R7 M340 - by 28 nm process technology.
    • Memory clock speed of Radeon HD 7660G plus HD 7670M Dual Graphics is 800 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 1−2 0−1
    ultra / 1080p 0−1 −
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 1−2
    medium / 1080p 3−4 0−1
    The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Assassin's Creed Odyssey is 1200% more, than Radeon R7 M340.

    Full Specs

      Radeon HD 7660G plus HD 7670M Dual Graphics Radeon R7 M340
    Architecture Terascale 2 GCN
    Code name Meso Pro DDR3
    Type Laptop Laptop
    Release date 15 May 2012 16 June 2015
    Pipelines 862 320
    Core clock speed 685 / 600 MHz 1021 MHz
    Boost Clock 1021 MHz
    Transistor count 950 million
    Manufacturing process technology 40 / 32 nm 28 nm
    Texture fill rate 17.16
    Floating-point performance 549.1 gflops
    Memory bus width 128 Bit 128 Bit
    Memory clock speed 1800 MHz 1000 MHz
    Memory bandwidth 16 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.4
    OpenCL Not Listed
    Vulkan +
    FreeSync +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 74 Mh/s
    Laptop size medium sized
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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