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    GeForce GT 640M LE vs Radeon HD 7970M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE and Radeon HD 7970M. 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 LE and Radeon HD 7970M. 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 LE Check Price
    Radeon HD 7970M Check Price

    GeForce GT 640M LE and Radeon HD 7970M are Laptop Graphics Cards

    Note: GeForce GT 640M LE and Radeon HD 7970M 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 LE or Radeon HD 7970M here:

    GeForce GT 640M LE Laptops
    Radeon HD 7970M Laptops

    Main Specs

      GeForce GT 640M LE Radeon HD 7970M
    Power consumption (TDP) 20 Watt 100 Watt
    Interface PCIe 2.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3\DDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs No outputs
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    • Radeon HD 7970M has 400% more power consumption, than GeForce GT 640M LE.
    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon HD 7970M uses MXM-B (3.0) interface.
    • GeForce GT 640M LE and Radeon HD 7970M have maximum RAM of 2 GB.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon HD 7970M - with GCN.
    • GeForce GT 640M LE and Radeon HD 7970M are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon HD 7970M is 3000 MHz higher, than GeForce GT 640M LE.

    Game benchmarks

    high / 1080p 0−1 18−20
    ultra / 1080p − 10−12
    QHD / 1440p 0−1 5−6
    4K / 2160p − 4−5
    low / 720p 1−2 35−40
    medium / 1080p 0−1 21−24
    The average gaming FPS of Radeon HD 7970M in Assassin's Creed Odyssey is 3600% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE Radeon HD 7970M
    Architecture Fermi / Kepler GCN
    Code name N13P-LP Wimbledon XT
    Type Laptop Laptop
    Release date 22 March 2012 1 May 2012
    Pipelines 384 1280
    Core clock speed 850 MHz
    Transistor count 585 million 2,800 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 68.00
    Floating-point performance 384.0 gflops 2,176 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 4800 MHz
    Memory bandwidth 153.6 GB/s
    Shared memory - -
    DirectX 12 API 12 (11_1)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan N/A 1.2.131
    CUDA +
    CUDA cores Up to 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) 14 Mh/s 254 Mh/s
    Laptop size medium sized large
    Optimus +
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