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    Mobility Radeon HD 4850 vs Radeon HD 7870M

    When comparing Mobility Radeon HD 4850 and Radeon HD 7870M, 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 4850 and Radeon HD 7870M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Mobility Radeon HD 4850 Check Price
    Radeon HD 7870M Check Price

    Mobility Radeon HD 4850 and Radeon HD 7870M are Laptop Graphics Cards

    Note: Mobility Radeon HD 4850 and Radeon HD 7870M 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 4850 or Radeon HD 7870M here:

    Mobility Radeon HD 4850 Laptops
    Radeon HD 7870M Laptops

    Main Specs

      Mobility Radeon HD 4850 Radeon HD 7870M
    Power consumption (TDP) 45 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Memory type GDDR3 GDDR5
    Maximum RAM amount 1 GB 2 GB
    Display Connectors No outputs No outputs
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    • Mobility Radeon HD 4850 is connected by PCIe 2.0 x16, and Radeon HD 7870M uses PCIe 3.0 x16 interface.
    • Radeon HD 7870M has 1 GB more memory, than Mobility Radeon HD 4850.
    • Both cards are used in Laptops.
    • Mobility Radeon HD 4850 is build with Terascale 1 architecture, and Radeon HD 7870M - with GCN.
    • Core clock speed of Radeon HD 7870M is 300 MHz higher, than Mobility Radeon HD 4850.
    • Mobility Radeon HD 4850 is manufactured by 55 nm process technology, and Radeon HD 7870M - by 28 nm process technology.
    • Memory clock speed of Radeon HD 7870M is 3150 MHz higher, than Mobility Radeon HD 4850.

    Game benchmarks

    high / 1080p 3−4 6−7
    ultra / 1080p 1−2 4−5
    QHD / 1440p 0−1 0−1
    low / 720p 14−16 16−18
    medium / 1080p 5−6 8−9
    The average gaming FPS of Radeon HD 7870M in Assassin's Creed Odyssey is 50% more, than Mobility Radeon HD 4850.

    Full Specs

      Mobility Radeon HD 4850 Radeon HD 7870M
    Architecture Terascale 1 GCN
    Code name M98 Heathrow XT
    Type Laptop Laptop
    Release date 9 January 2009 24 April 2012
    Pipelines 800 640
    Core clock speed 500 MHz 800 MHz
    Transistor count 956 million 1,500 million
    Manufacturing process technology 55 nm 28 nm
    Texture fill rate 20.00 32.00
    Floating-point performance 800.0 gflops 1,024 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 850 MHz 4000 MHz
    Memory bandwidth 54.4 GB/s 64 GB/s
    Shared memory - -
    DirectX 10.1 (10_1) 12 (11_1)
    Shader Model 4.1 5.1
    OpenGL 3.3 4.6
    OpenCL 1.1 1.2
    Vulkan N/A 1.2.131
    Laptop size large large
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