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    GeForce GT 640M vs Radeon HD 6950

    When comparing GeForce GT 640M and Radeon HD 6950, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640M and Radeon HD 6950 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640M Check Price
    Radeon HD 6950 Check Price

    GeForce GT 640M is a Laptop Graphics Card

    Note: GeForce GT 640M is only used in laptop graphics. It has 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 here:

    GeForce GT 640M Laptops

    Main Specs

      GeForce GT 640M Radeon HD 6950
    Power consumption (TDP) 32 Watt 500 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    Supplementary power connectors 2x 6-pin
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 GB
    Display Connectors No outputs 2x DVI, 1x HDMI, 2x mini-DisplayPort
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    • Radeon HD 6950 has 1462% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and Radeon HD 6950 uses PCIe 2.0 x16 interface.
    • GeForce GT 640M and Radeon HD 6950 have maximum RAM of 2 GB.
    • GeForce GT 640M is used in Laptops, and Radeon HD 6950 - in Desktops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon HD 6950 - with TeraScale 3.
    • GeForce GT 640M is manufactured by 28 nm process technology, and Radeon HD 6950 - by 40 nm process technology.
    • Memory clock speed of GeForce GT 640M is 550 MHz higher, than Radeon HD 6950.

    Game benchmarks

    high / 1080p 0−1 14−16
    ultra / 1080p 0−1 8−9
    QHD / 1440p 0−1 3−4
    low / 720p 10−12 27−30
    medium / 1080p 2−3 16−18
    The average gaming FPS of Radeon HD 6950 in Assassin's Creed Odyssey is 266% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon HD 6950
    Architecture Kepler TeraScale 3
    Code name N13P-GS Cayman
    Type Laptop Desktop
    Release date 22 March 2012 14 December 2010
    Pipelines 384 1408
    Boost Clock 645 MHz 800 MHz
    Transistor count 1,270 million 2,640 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 70.40
    Floating-point performance 480.0 gflops 2,252.8 gflops
    Length 267 mm
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 - 4000 MHz 1250 MHz
    Shared memory -
    DirectX 12 API
    Shader Model 5.1 5.0
    OpenGL 4.5 4.4
    OpenCL 1.1 1.2
    Vulkan 1.1.126
    CUDA +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 2.0 x16
    HDMI + +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 244 Mh/s
    Laptop size medium sized
    Optimus +
    Eyefinity +
    Design reference
    CrossFire +
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