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    Mobility Radeon HD 3870 X2 vs Radeon R7 M270

    If you are going to buy a new graphics card and are choosing between Mobility Radeon HD 3870 X2 and Radeon R7 M270, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Mobility Radeon HD 3870 X2 stacks up against Radeon R7 M270, check out specs charts below.
    Mobility Radeon HD 3870 X2 Check Price
    Radeon R7 M270 Check Price

    Mobility Radeon HD 3870 X2 and Radeon R7 M270 are Laptop Graphics Cards

    Note: Mobility Radeon HD 3870 X2 and Radeon R7 M270 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 R7 M270 here:

    Mobility Radeon HD 3870 X2 Laptops
    Radeon R7 M270 Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon R7 M270
    Power consumption (TDP) 110 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x8
    Memory type GDDR3 Not Listed
    Maximum RAM amount 512 MB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon R7 M270 uses PCIe 3.0 x8 interface.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon R7 M270 - with GCN.
    • Core clock speed of Radeon R7 M270 is 165 MHz higher, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon R7 M270 - by 28 nm process technology.

    Game benchmarks

    high / 1080p 6−7 0−1
    ultra / 1080p 4−5 −
    QHD / 1440p 0−1 0−1
    low / 720p 16−18 1−2
    medium / 1080p 8−9 0−1
    The average gaming FPS of Mobility Radeon HD 3870 X2 in Assassin's Creed Odyssey is 1600% more, than Radeon R7 M270.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon R7 M270
    Architecture RV6xx GCN
    Code name M88-XT CF Opal XT / Mars
    Type Laptop Laptop
    Release date 1 September 2008 7 January 2014
    Pipelines 640 384
    Core clock speed 660 MHz 825 MHz
    Transistor count 666 million 950 million
    Manufacturing process technology 55 nm 28 nm
    Texture fill rate 10.56 19.80
    Floating-point performance 2x 422.4 gflops 633.6 gflops
    Memory bus width 256 Bit
    Memory clock speed 850 MHz
    Memory bandwidth 54.4 GB/s 28.8 GB/s
    Shared memory - -
    DirectX 10.1 (10_1)
    Shader Model 4.1 5.1
    OpenGL 3.3 4.4
    OpenCL N/A Not Listed
    Vulkan N/A
    FreeSync +
    Bus support PCIe 3.0
    Laptop size large medium sized
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
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