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    Mobility Radeon HD 3870 X2 vs Radeon Pro 580X

    Find out if it is worth upgrading your current GPU setup by comparing Mobility Radeon HD 3870 X2 and Radeon Pro 580X. 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 Pro 580X. 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 Pro 580X

    Mobility Radeon HD 3870 X2 is a Laptop Graphics Card

    Note: Mobility Radeon HD 3870 X2 is only used in laptop graphics. It has 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 here:

    Mobility Radeon HD 3870 X2 Laptops

    Main Specs

      Mobility Radeon HD 3870 X2 Radeon Pro 580X
    Power consumption (TDP) 110 Watt 150 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type GDDR3 GDDR5
    Maximum RAM amount 512 MB 8 GB
    Display Connectors No outputs No outputs
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    • Radeon Pro 580X has 36% more power consumption, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is connected by PCIe 2.0 x16, and Radeon Pro 580X uses PCIe 3.0 x16 interface.
    • Mobility Radeon HD 3870 X2 has 504 GB more memory, than Radeon Pro 580X.
    • Mobility Radeon HD 3870 X2 is used in Laptops, and Radeon Pro 580X - in Desktops.
    • Mobility Radeon HD 3870 X2 is build with RV6xx architecture, and Radeon Pro 580X - with GCN 4.0.
    • Core clock speed of Radeon Pro 580X is 440 MHz higher, than Mobility Radeon HD 3870 X2.
    • Mobility Radeon HD 3870 X2 is manufactured by 55 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
    • Memory clock speed of Radeon Pro 580X is 5930 MHz higher, than Mobility Radeon HD 3870 X2.

    Game benchmarks

    high / 1080p 6−7 35−40
    ultra / 1080p 4−5 24−27
    QHD / 1440p 0−1 18−20
    4K / 2160p − 10−12
    low / 720p 16−18 60−65
    medium / 1080p 8−9 45−50
    The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 377% more, than Mobility Radeon HD 3870 X2.

    Full Specs

      Mobility Radeon HD 3870 X2 Radeon Pro 580X
    Architecture RV6xx GCN 4.0
    Code name M88-XT CF Polaris 20
    Type Laptop Workstation
    Release date 1 September 2008 18 March 2019
    Pipelines 640 2304
    Core clock speed 660 MHz 1100 MHz
    Boost Clock 1200 MHz
    Transistor count 666 million 5,700 million
    Manufacturing process technology 55 nm 14 nm
    Texture fill rate 10.56 172.8
    Floating-point performance 2x 422.4 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 850 MHz 6780 MHz
    Memory bandwidth 54.4 GB/s 217.0 GB/s
    Shared memory -
    DirectX 10.1 (10_1) 12 (12_0)
    Shader Model 4.1 6.4
    OpenGL 3.3 4.6
    OpenCL N/A 2.0
    Vulkan N/A 1.2.131
    Laptop size large
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