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    Mobility Radeon HD 3870 X2 vs Radeon R9 M395X

    When comparing Mobility Radeon HD 3870 X2 and Radeon R9 M395X, 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 R9 M395X 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 R9 M395X Check Price

    Mobility Radeon HD 3870 X2 and Radeon R9 M395X are Laptop Graphics Cards

    Note: Mobility Radeon HD 3870 X2 and Radeon R9 M395X 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 R9 M395X here:

    Mobility Radeon HD 3870 X2 Laptops
    Radeon R9 M395X Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon R9 M395X
    Power consumption (TDP) 110 Watt 250 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type GDDR3 GDDR5
    Maximum RAM amount 512 MB 4 GB
    Display Connectors No outputs No outputs
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    • Radeon R9 M395X has 127% more power consumption, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon R9 M395X uses PCIe 3.0 x16 interface.
    • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Radeon R9 M395X.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon R9 M395X - with GCN 3.
    • Core clock speed of Radeon R9 M395X is 63 MHz higher, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon R9 M395X - by 28 nm process technology.
    • Memory clock speed of Radeon R9 M395X is 400 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 6−7 24−27
    ultra / 1080p 4−5 14−16
    QHD / 1440p 0−1 9−10
    4K / 2160p − 6−7
    low / 720p 16−18 45−50
    medium / 1080p 8−9 30−35
    The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 233% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon R9 M395X
    Architecture RV6xx GCN 3
    Code name M88-XT CF Amethyst XT
    Type Laptop Laptop
    Release date 1 September 2008 16 October 2014
    Pipelines 640 2048
    Core clock speed 660 MHz 723 MHz
    Transistor count 666 million 5,000 million
    Manufacturing process technology 55 nm 28 nm
    Texture fill rate 10.56 92.54
    Floating-point performance 2x 422.4 gflops 2,961 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 850 MHz 1250 MHz
    Memory bandwidth 54.4 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 10.1 (10_1)
    Shader Model 4.1 6.3
    OpenGL 3.3 4.4
    OpenCL N/A Not Listed
    Vulkan N/A
    FreeSync +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 413 Mh/s
    Laptop size large large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
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