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    Mobility Radeon HD 3870 X2 vs Radeon HD 7690M

    When comparing Mobility Radeon HD 3870 X2 and Radeon HD 7690M, 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 7690M 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 7690M Check Price

    Mobility Radeon HD 3870 X2 and Radeon HD 7690M are Laptop Graphics Cards

    Note: Mobility Radeon HD 3870 X2 and Radeon HD 7690M 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 7690M here:

    Mobility Radeon HD 3870 X2 Laptops
    Radeon HD 7690M Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon HD 7690M
    Power consumption (TDP) 110 Watt 20 Watt
    Interface PCIe 2.0 x16 MXM-A (3.0)
    Supplementary power connectors None
    Memory type GDDR3 GDDR5/DDR3
    Maximum RAM amount 512 MB 1 GB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 has 450% more power consumption, than Radeon HD 7690M.
    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon HD 7690M uses MXM-A (3.0) interface.
    • Mobility Radeon HD 3870 X2 has 511 GB more memory, than Radeon HD 7690M.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon HD 7690M - with Terascale 2.
    • Core clock speed of Mobility Radeon HD 3870 X2 is 60 MHz higher, than Radeon HD 7690M.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon HD 7690M - by 40 nm process technology.
    • Memory clock speed of Radeon HD 7690M is 2750 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 6−7 2−3
    ultra / 1080p 4−5 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 16−18 12−14
    medium / 1080p 8−9 4−5
    The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 66% more, than Radeon HD 7690M.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon HD 7690M
    Architecture RV6xx Terascale 2
    Code name M88-XT CF Thames XT / XTX
    Type Laptop Laptop
    Release date 1 September 2008 7 June 2011
    Pipelines 640 480
    Core clock speed 660 MHz 600 MHz
    Boost Clock 725 MHz
    Transistor count 666 million 716 million
    Manufacturing process technology 55 nm 40 nm
    Texture fill rate 10.56 17.40
    Floating-point performance 2x 422.4 gflops 696.0 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 850 MHz 3600/1800 MHz
    Memory bandwidth 54.4 GB/s 28.8 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
    Laptop size large medium sized
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