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    Radeon Pro 555X vs Radeon R7 M340

    When choosing between Radeon Pro 555X and Radeon R7 M340, 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 Radeon Pro 555X and Radeon R7 M340.
    Radeon Pro 555X Check Price
    Radeon R7 M340 Check Price

    Radeon Pro 555X and Radeon R7 M340 are Laptop Graphics Cards

    Note: Radeon Pro 555X and Radeon R7 M340 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 Radeon Pro 555X or Radeon R7 M340 here:

    Radeon Pro 555X Laptops
    Radeon R7 M340 Laptops

    Main Specs

      Radeon Pro 555X Radeon R7 M340
    Power consumption (TDP) 75 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x8
    Supplementary power connectors None None
    Memory type GDDR5 DDR3
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Both video cards are using PCIe 3.0 x8 interface connection to a motherboard.
    • Radeon R7 M340 has 2 GB more memory, than Radeon Pro 555X.
    • Radeon Pro 555X is used in Mobile workstations, and Radeon R7 M340 - in Laptops.
    • Radeon Pro 555X is build with Polaris architecture, and Radeon R7 M340 - with GCN.
    • Core clock speed of Radeon R7 M340 is 166 MHz higher, than Radeon Pro 555X.
    • Radeon Pro 555X is manufactured by 14 nm process technology, and Radeon R7 M340 - by 28 nm process technology.
    • Memory clock speed of Radeon Pro 555X is 4080 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 16−18 0−1
    ultra / 1080p 10−11 −
    QHD / 1440p 4−5 0−1
    4K / 2160p 4−5 −
    low / 720p 30−35 1−2
    medium / 1080p 21−24 0−1
    The average gaming FPS of Radeon Pro 555X in Assassin's Creed Odyssey is 3100% more, than Radeon R7 M340.

    Full Specs

      Radeon Pro 555X Radeon R7 M340
    Architecture Polaris GCN
    Code name Polaris 21 Meso Pro DDR3
    Type Mobile workstation Laptop
    Release date 5 June 2017 16 June 2015
    Pipelines 768 320
    Core clock speed 855 MHz 1021 MHz
    Boost Clock 1021 MHz
    Transistor count 3,000 million 950 million
    Manufacturing process technology 14 nm 28 nm
    Texture fill rate 43.54 17.16
    Floating-point performance 549.1 gflops
    Memory bus width 128 Bit 128 Bit
    Memory clock speed 5080 MHz 1000 MHz
    Memory bandwidth 81.6 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 (12_0)
    Shader Model 6.4 5.1
    OpenGL 4.6 4.4
    OpenCL 2.0 Not Listed
    Vulkan 1.2.131 +
    FreeSync + +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 74 Mh/s
    Laptop size large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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