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    Radeon R7 250X vs Radeon R7 M340

    If you are going to buy a new graphics card and are choosing between Radeon R7 250X 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 R7 250X stacks up against Radeon R7 M340, check out specs charts below.
    Radeon R7 250X Check Price
    Radeon R7 M340 Check Price

    Radeon R7 M340 is a Laptop Graphics Card

    Note: Radeon R7 M340 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 R7 M340 here:

    Radeon R7 M340 Laptops

    Main Specs

      Radeon R7 250X Radeon R7 M340
    Power consumption (TDP) 80 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors 1 x 6-pin None
    Memory type GDDR5 DDR3
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 2x mini-DisplayPort No outputs
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    • Radeon R7 250X is connected by PCIe 3.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • Radeon R7 M340 has 2 GB more memory, than Radeon R7 250X.
    • Radeon R7 250X is used in Desktops, and Radeon R7 M340 - in Laptops.
    • Radeon R7 250X is build with GCN 1.0 architecture, and Radeon R7 M340 - with GCN.
    • Radeon R7 250X and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon R7 250X is 625 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 10−12 0−1
    ultra / 1080p 6−7 −
    QHD / 1440p 1−2 0−1
    low / 720p 24−27 1−2
    medium / 1080p 14−16 0−1
    The average gaming FPS of Radeon R7 250X in Assassin's Creed Odyssey is 2400% more, than Radeon R7 M340.

    Full Specs

      Radeon R7 250X Radeon R7 M340
    Architecture GCN 1.0 GCN
    Code name Cape Verde Meso Pro DDR3
    Type Desktop Laptop
    Release date 13 February 2014 16 June 2015
    Pipelines 640 320
    Core clock speed 1021 MHz
    Boost Clock 1000 MHz 1021 MHz
    Transistor count 1,500 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 38.00 17.16
    Floating-point performance 1,216 gflops 549.1 gflops
    Length 210 mm
    Memory bus width 128 Bit 128 Bit
    Memory clock speed 1625 MHz 1000 MHz
    Memory bandwidth 96 GB/s 16 GB/s
    Shared memory -
    Shader Model 5.1 5.1
    OpenGL 4.6 4.4
    OpenCL 1.2 Not Listed
    Vulkan +
    FreeSync + +
    Bus support PCIe 3.0 PCIe 3.0
    HDMI +
    Bitcoin / BTC (SHA256) 152 Mh/s 74 Mh/s
    Eyefinity + +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Design reference
    CrossFire +
    DDMA audio +
    Compute units 6
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