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    GeForce GT 640M vs Radeon HD 6970M

    In this comparison between GeForce GT 640M and Radeon HD 6970M 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 GeForce GT 640M will be the best choice, for others Radeon HD 6970M will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    Radeon HD 6970M Check Price

    GeForce GT 640M and Radeon HD 6970M are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon HD 6970M 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 6970M here:

    GeForce GT 640M Laptops
    Radeon HD 6970M Laptops

    Main Specs

      GeForce GT 640M Radeon HD 6970M
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • Radeon HD 6970M has 134% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon HD 6970M uses MXM-B (3.0) interface.
    • GeForce GT 640M and Radeon HD 6970M have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon HD 6970M - with Terascale 2.
    • GeForce GT 640M is manufactured by 28 nm process technology, and Radeon HD 6970M - by 40 nm process technology.
    • Memory clock speed of GeForce GT 640M is 900 MHz higher, than Radeon HD 6970M.

    Game benchmarks

    high / 1080p 0−1 10−12
    ultra / 1080p 0−1 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 10−12 24−27
    medium / 1080p 2−3 14−16
    The average gaming FPS of Radeon HD 6970M in Assassin's Creed Odyssey is 233% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon HD 6970M
    Architecture Kepler Terascale 2
    Code name N13P-GS Blackcomb XT
    Type Laptop Laptop
    Release date 22 March 2012 6 January 2011
    Pipelines 384 960
    Core clock speed 680 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 1,700 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 32.64
    Floating-point performance 480.0 gflops 1,305.6 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 900 MHz
    Memory bandwidth 115.2 GB/s
    Shared memory - -
    DirectX 12 API 11.2 (11_0)
    Shader Model 5.1 5.0
    OpenGL 4.5 4.4
    OpenCL 1.1 1.2
    Vulkan 1.1.126 N/A
    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 118 Mh/s
    Laptop size medium sized large
    Optimus +
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