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    GeForce GT 640M vs Radeon HD 7660G plus HD 7670M Dual Graphics

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and Radeon HD 7660G plus HD 7670M Dual Graphics. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 640M and Radeon HD 7660G plus HD 7670M Dual Graphics. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GT 640M Check Price
    Radeon HD 7660G plus HD 7670M Dual Graphics Check Price

    GeForce GT 640M and Radeon HD 7660G plus HD 7670M Dual Graphics are Laptop Graphics Cards

    Note: GeForce GT 640M 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 GeForce GT 640M or Radeon HD 7660G plus HD 7670M Dual Graphics here:

    GeForce GT 640M Laptops
    Radeon HD 7660G plus HD 7670M Dual Graphics Laptops

    Main Specs

      GeForce GT 640M Radeon HD 7660G plus HD 7670M Dual Graphics
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16
    Memory type DDR3\GDDR5 DDR3,GDDR5
    Maximum RAM amount 2 GB
    Display Connectors No outputs
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    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon HD 7660G plus HD 7670M Dual Graphics - with Terascale 2.
    • GeForce GT 640M is manufactured by 28 nm process technology, and Radeon HD 7660G plus HD 7670M Dual Graphics - by 40 / 32 nm process technology.
    • Memory clock speed of GeForce GT 640M and Radeon HD 7660G plus HD 7670M Dual Graphics is 1800 MHz.

    Game benchmarks

    high / 1080p 0−1 1−2
    ultra / 1080p 0−1 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 12−14
    medium / 1080p 2−3 3−4
    The average gaming FPS of Radeon HD 7660G plus HD 7670M Dual Graphics in Assassin's Creed Odyssey is 33% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon HD 7660G plus HD 7670M Dual Graphics
    Architecture Kepler Terascale 2
    Code name N13P-GS
    Type Laptop Laptop
    Release date 22 March 2012 15 May 2012
    Pipelines 384 862
    Core clock speed 685 / 600 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million
    Manufacturing process technology 28 nm 40 / 32 nm
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 1800 MHz
    Shared memory - -
    DirectX 12 API DirectX 11, Shader 5.0
    Shader Model 5.1
    OpenGL 4.5
    OpenCL 1.1
    Vulkan 1.1.126
    CUDA +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s
    Laptop size medium sized medium sized
    Optimus +
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