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    Mobility Radeon HD 5870 Crossfire vs Radeon RX 640

    When choosing between Mobility Radeon HD 5870 Crossfire and Radeon RX 640, it is worth examining the specifications of the models in detail. Do they meet the recommended requirements of modern games and software? Storage capacity, form factor, TDP, available ports, warranty and manufacturer support are all important. For example, the size of a PC case can limit the maximum thickness and length of the card. Often, instead of the factory overclocked card and RGB backlight, it is better to choose a reference model with a more efficient GPU. And make sure that your current power supply unit has the correct connection pins (using adapters is not recommended). This GPUs compare tool is meant to help you to choose the best graphics card for your build. Let's find out the difference between Mobility Radeon HD 5870 Crossfire and Radeon RX 640.
    Mobility Radeon HD 5870 Crossfire Check Price
    Radeon RX 640 Check Price

    Mobility Radeon HD 5870 Crossfire and Radeon RX 640 are Laptop Graphics Cards

    Note: Mobility Radeon HD 5870 Crossfire and Radeon RX 640 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 5870 Crossfire or Radeon RX 640 here:

    Mobility Radeon HD 5870 Crossfire Laptops
    Radeon RX 640 Laptops

    Main Specs

      Mobility Radeon HD 5870 Crossfire Radeon RX 640
    Power consumption (TDP) 120 Watt 50 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3, GDDR3, GDDR5 GDDR5
    Maximum RAM amount 2x1 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort
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    • Mobility Radeon HD 5870 Crossfire has 140% more power consumption, than Radeon RX 640.
    • Radeon RX 640 has 2 GB more memory, than Mobility Radeon HD 5870 Crossfire.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 5870 Crossfire is build with Terascale 2 architecture, and Radeon RX 640 - with Polaris.
    • Core clock speed of Radeon RX 640 is 518 MHz higher, than Mobility Radeon HD 5870 Crossfire.
    • Mobility Radeon HD 5870 Crossfire is manufactured by 40 nm process technology, and Radeon RX 640 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 640 is 5000 MHz higher, than Mobility Radeon HD 5870 Crossfire.

    Game benchmarks

    high / 1080p 16−18 5−6
    ultra / 1080p 9−10 3−4
    QHD / 1440p 4−5 2−3
    low / 720p 30−35 16−18
    medium / 1080p 18−20 7−8
    The average gaming FPS of Mobility Radeon HD 5870 Crossfire in Assassin's Creed Odyssey is 128% more, than Radeon RX 640.

    Full Specs

      Mobility Radeon HD 5870 Crossfire Radeon RX 640
    Architecture Terascale 2 Polaris
    Code name Broadway-XT Polaris 12
    Type Laptop Laptop
    Release date 7 January 2010 12 August 2019
    Pipelines 1600 640
    Core clock speed 700 MHz 1218 MHz
    Boost Clock 1218 MHz
    Transistor count 2,200 million
    Manufacturing process technology 40 nm 14 nm
    Texture fill rate 38.98
    Memory bus width 128 Bit 64 Bit
    Memory clock speed 1000 MHz 6000 MHz
    Memory bandwidth 112.0 GB/s
    Shared memory - -
    DirectX DirectX 11, Shader 5.0 12 (12_0)
    Shader Model 6.4
    OpenGL 4.6
    OpenCL 2.0
    Vulkan 1.2.131
    FreeSync +
    Laptop size large large
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