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    Radeon HD 6870 vs Radeon R9 M485X

    When comparing Radeon HD 6870 and Radeon R9 M485X, 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 Radeon HD 6870 and Radeon R9 M485X is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    Radeon HD 6870 Check Price
    Radeon R9 M485X Check Price

    Radeon R9 M485X is a Laptop Graphics Card

    Note: Radeon R9 M485X 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 Radeon R9 M485X here:

    Radeon R9 M485X Laptops

    Main Specs

      Radeon HD 6870 Radeon R9 M485X
    Power consumption (TDP) 151 Watt 250 Watt
    Interface PCIe 2.0 x16 MXM-B (3.0)
    Supplementary power connectors 2x 6-pin None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 1 GB 8 GB MB
    Display Connectors 2x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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    • Radeon R9 M485X has 65% more power consumption, than Radeon HD 6870.
    • Radeon HD 6870 is connected by PCIe 2.0 x16, and Radeon R9 M485X uses MXM-B (3.0) interface.
    • Radeon R9 M485X has 7 GB more memory, than Radeon HD 6870.
    • Radeon HD 6870 is used in Desktops, and Radeon R9 M485X - in Laptops.
    • Radeon HD 6870 is build with Terascale 2 architecture, and Radeon R9 M485X - with GCN 3.
    • Radeon HD 6870 is manufactured by 40 nm process technology, and Radeon R9 M485X - by 28 nm process technology.
    • Memory clock speed of Radeon R9 M485X is 3950 MHz higher, than Radeon HD 6870.

    Game benchmarks

    high / 1080p 10−12 24−27
    ultra / 1080p 6−7 14−16
    QHD / 1440p 1−2 10−11
    4K / 2160p − 6−7
    low / 720p 24−27 45−50
    medium / 1080p 12−14 30−35
    The average gaming FPS of Radeon R9 M485X in Assassin's Creed Odyssey is 136% more, than Radeon HD 6870.

    Full Specs

      Radeon HD 6870 Radeon R9 M485X
    Architecture Terascale 2 GCN 3
    Code name RV940 Barts Amethyst
    Type Desktop Laptop
    Release date 22 October 2010 14 May 2016
    Pipelines 1120 2048
    Core clock speed 723 MHz
    Boost Clock 900 MHz
    Transistor count 1,700 million 5,000 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 50.40 92.54
    Floating-point performance 2,016.0 gflops 2,961 gflops
    Length 220 mm
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 1050 MHz 5000 MHz
    Memory bandwidth 134.4 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 (12_0)
    Shader Model 5.0 6.3
    OpenGL 4.4 4.6
    OpenCL 1.2 2.0
    Vulkan 1.2.131
    Bus support PCIe 2.0 x16
    HDMI +
    Bitcoin / BTC (SHA256) 213 Mh/s
    Laptop size large
    Eyefinity +
    Design reference
    CrossFire +
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