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    Radeon Pro 455 vs Radeon R7 M340

    If you are going to buy a new graphics card and are choosing between Radeon Pro 455 and Radeon R7 M340, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon Pro 455 stacks up against Radeon R7 M340, check out specs charts below.
    Radeon Pro 455 Check Price
    Radeon R7 M340 Check Price

    Radeon Pro 455 and Radeon R7 M340 are Laptop Graphics Cards

    Note: Radeon Pro 455 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 455 or Radeon R7 M340 here:

    Radeon Pro 455 Laptops
    Radeon R7 M340 Laptops

    Main Specs

      Radeon Pro 455 Radeon R7 M340
    Power consumption (TDP) 35 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 455.
    • Radeon Pro 455 is used in Mobile workstations, and Radeon R7 M340 - in Laptops.
    • Radeon Pro 455 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 455.
    • Radeon Pro 455 is manufactured by 14 nm process technology, and Radeon R7 M340 - by 28 nm process technology.
    • Memory clock speed of Radeon Pro 455 is 4000 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 16−18 0−1
    ultra / 1080p 9−10 −
    QHD / 1440p 4−5 0−1
    4K / 2160p 4−5 −
    low / 720p 30−35 1−2
    medium / 1080p 20−22 0−1
    The average gaming FPS of Radeon Pro 455 in Assassin's Creed Odyssey is 3100% more, than Radeon R7 M340.

    Full Specs

      Radeon Pro 455 Radeon R7 M340
    Architecture Polaris GCN
    Code name Polaris 11 Meso Pro DDR3
    Type Mobile workstation Laptop
    Release date 27 October 2016 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 41.04 17.16
    Floating-point performance 1,313 gflops 549.1 gflops
    Memory bus width 128 Bit 128 Bit
    Memory clock speed 5000 MHz 1000 MHz
    Memory bandwidth 81.28 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) 163 Mh/s 74 Mh/s
    Laptop size large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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