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    Mobility Radeon HD 3870 X2 vs Radeon R9 M385

    Find out if it is worth upgrading your current GPU setup by comparing Mobility Radeon HD 3870 X2 and Radeon R9 M385. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between Mobility Radeon HD 3870 X2 and Radeon R9 M385. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    Mobility Radeon HD 3870 X2 Check Price
    Radeon R9 M385 Check Price

    Mobility Radeon HD 3870 X2 and Radeon R9 M385 are Laptop Graphics Cards

    Note: Mobility Radeon HD 3870 X2 and Radeon R9 M385 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 M385 here:

    Mobility Radeon HD 3870 X2 Laptops
    Radeon R9 M385 Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon R9 M385
    Power consumption (TDP) 110 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Memory type GDDR3 GDDR5
    Maximum RAM amount 512 MB 4 GB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon R9 M385 uses PCIe 3.0 x16 interface.
    • Mobility Radeon HD 3870 X2 has 508 GB more memory, than Radeon R9 M385.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon R9 M385 - with GCN.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon R9 M385 - by 28 nm process technology.
    • Memory clock speed of Radeon R9 M385 is 650 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 12−14
    The average gaming FPS of Radeon R9 M385 in Assassin's Creed Odyssey is 55% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon R9 M385
    Architecture RV6xx GCN
    Code name M88-XT CF Strato
    Type Laptop Laptop
    Release date 1 September 2008 16 June 2015
    Pipelines 640 896
    Core clock speed 660 MHz
    Boost Clock 1100 MHz
    Transistor count 666 million 2,080 million
    Manufacturing process technology 55 nm 28 nm
    Texture fill rate 10.56 56.00
    Floating-point performance 2x 422.4 gflops 1,792 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 850 MHz 1500 MHz
    Memory bandwidth 54.4 GB/s 76.8 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
    Laptop size large medium sized
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
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