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    Radeon HD 6950M vs Radeon RX 640

    When comparing Radeon HD 6950M and Radeon RX 640, 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 Radeon HD 6950M and Radeon RX 640 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Radeon HD 6950M Check Price
    Radeon RX 640 Check Price

    Radeon HD 6950M and Radeon RX 640 are Laptop Graphics Cards

    Note: Radeon HD 6950M and Radeon RX 640 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 6950M or Radeon RX 640 here:

    Radeon HD 6950M Laptops
    Radeon RX 640 Laptops

    Main Specs

      Radeon HD 6950M Radeon RX 640
    Power consumption (TDP) 50 Watt 50 Watt
    Interface MXM-B (3.0) PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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    • Both graphics cards have the same power consumption of 50 Watt.
    • Radeon HD 6950M is connected by MXM-B (3.0), and Radeon RX 640 uses PCIe 3.0 x8 interface.
    • Radeon RX 640 has 2 GB more memory, than Radeon HD 6950M.
    • Both cards are used in Laptops.
    • Radeon HD 6950M is build with Terascale 2 architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 638 MHz higher, than Radeon HD 6950M.
    • Radeon HD 6950M is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 5100 MHz higher, than Radeon HD 6950M.

    Game benchmarks

    high / 1080p 8−9 5−6
    ultra / 1080p 5−6 3−4
    QHD / 1440p 0−1 2−3
    low / 720p 20−22 16−18
    medium / 1080p 10−12 7−8
    The average gaming FPS of Radeon HD 6950M in Assassin's Creed Odyssey is 37% more, than Radeon RX 640.

    Full Specs

      Radeon HD 6950M Radeon RX 640
    Architecture Terascale 2 Polaris
    Code name Blackcomb Pro Polaris 12
    Type Laptop Laptop
    Release date 6 January 2011 12 August 2019
    Pipelines 960 640
    Core clock speed 580 MHz 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 1,700 million 2,200 million
    Manufacturing process technology 40 nm 14 nm
    Texture fill rate 27.84 38.98
    Floating-point performance 1,113.6 gflops
    Memory bus width 256 Bit 64 Bit
    Memory clock speed 900 MHz 6000 MHz
    Memory bandwidth 115.2 GB/s 112.0 GB/s
    Shared memory - -
    DirectX 11.2 (11_0) 12 (12_0)
    Shader Model 5.0 6.4
    OpenGL 4.4 4.6
    OpenCL 1.2 2.0
    Vulkan N/A 1.2.131
    FreeSync +
    Laptop size large large
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