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    Mobility Radeon HD 3870 X2 vs Radeon HD 6970M

    When comparing Mobility Radeon HD 3870 X2 and Radeon HD 6970M, 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 Mobility Radeon HD 3870 X2 and Radeon HD 6970M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Mobility Radeon HD 3870 X2 Check Price
    Radeon HD 6970M Check Price

    Mobility Radeon HD 3870 X2 and Radeon HD 6970M are Laptop Graphics Cards

    Note: Mobility Radeon HD 3870 X2 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 Mobility Radeon HD 3870 X2 or Radeon HD 6970M here:

    Mobility Radeon HD 3870 X2 Laptops
    Radeon HD 6970M Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon HD 6970M
    Power consumption (TDP) 110 Watt 75 Watt
    Interface PCIe 2.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type GDDR3 GDDR5
    Maximum RAM amount 512 MB 2 GB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 has 46% more power consumption, than Radeon HD 6970M.
    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon HD 6970M uses MXM-B (3.0) interface.
    • Mobility Radeon HD 3870 X2 has 510 GB more memory, than Radeon HD 6970M.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 6970M - with Terascale 2.
    • Core clock speed of Radeon HD 6970M is 20 MHz higher, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon HD 6970M - by 40 nm process technology.
    • Memory clock speed of Radeon HD 6970M is 50 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 6−7 10−12
    ultra / 1080p 4−5 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 16−18 24−27
    medium / 1080p 8−9 14−16
    The average gaming FPS of Radeon HD 6970M in Assassin's Creed Odyssey is 55% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon HD 6970M
    Architecture RV6xx Terascale 2
    Code name M88-XT CF Blackcomb XT
    Type Laptop Laptop
    Release date 1 September 2008 6 January 2011
    Pipelines 640 960
    Core clock speed 660 MHz 680 MHz
    Transistor count 666 million 1,700 million
    Manufacturing process technology 55 nm 40 nm
    Texture fill rate 10.56 32.64
    Floating-point performance 2x 422.4 gflops 1,305.6 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 850 MHz 900 MHz
    Memory bandwidth 54.4 GB/s 115.2 GB/s
    Shared memory - -
    DirectX 10.1 (10_1) 11.2 (11_0)
    Shader Model 4.1 5.0
    OpenGL 3.3 4.4
    OpenCL N/A 1.2
    Vulkan N/A N/A
    Bitcoin / BTC (SHA256) 118 Mh/s
    Laptop size large large
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