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    Radeon R7 M340 vs UHD Graphics 620

    If you are going to buy a new graphics card and are choosing between Radeon R7 M340 and UHD Graphics 620, 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 R7 M340 stacks up against UHD Graphics 620, check out specs charts below.
    Radeon R7 M340 Check Price
    UHD Graphics 620 Check Price

    Radeon R7 M340 and UHD Graphics 620 are Laptop Graphics Cards

    Note: Radeon R7 M340 and UHD Graphics 620 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 R7 M340 or UHD Graphics 620 here:

    Radeon R7 M340 Laptops
    UHD Graphics 620 Laptops

    Main Specs

      Radeon R7 M340 UHD Graphics 620
    Power consumption (TDP) 15 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x1
    Supplementary power connectors None
    Memory type DDR3 LPDDR3/DDR4
    Maximum RAM amount 4 GB 32 GB
    Display Connectors No outputs No outputs
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    • Radeon R7 M340 is connected by PCIe 3.0 x8, and UHD Graphics 620 uses PCIe 3.0 x1 interface.
    • UHD Graphics 620 has 28 GB more memory, than Radeon R7 M340.
    • Both cards are used in Laptops.
    • Radeon R7 M340 is build with GCN architecture, and UHD Graphics 620 - with Gen. 9.5.
    • Core clock speed of Radeon R7 M340 is 721 MHz higher, than UHD Graphics 620.
    • Radeon R7 M340 is manufactured by 28 nm process technology, and UHD Graphics 620 - by 14 nm process technology.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p − 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 12−14
    medium / 1080p 0−1 3−4
    The average gaming FPS of UHD Graphics 620 in Assassin's Creed Odyssey is 1200% more, than Radeon R7 M340.

    Full Specs

      Radeon R7 M340 UHD Graphics 620
    Architecture GCN Gen. 9.5
    Code name Meso Pro DDR3 Kaby-Lake-Refresh GT2
    Type Laptop Laptop
    Release date 16 June 2015 1 September 2017
    Pipelines 320 24
    Core clock speed 1021 MHz 300 MHz
    Boost Clock 1021 MHz 1150 MHz
    Transistor count 950 million 189 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 17.16 27.60
    Floating-point performance 549.1 gflops
    Memory bus width 128 Bit 64/128 Bit
    Memory clock speed 1000 MHz
    Memory bandwidth 16 GB/s
    Shared memory - +
    DirectX 12 (12_1)
    Shader Model 5.1 6.4
    OpenGL 4.4 4.6
    OpenCL Not Listed 2.1
    Vulkan + 1.1.103
    FreeSync +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 74 Mh/s
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Quick Sync +
    Compute units 6
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