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    Radeon HD 7970M vs Radeon R7 M340

    When choosing between Radeon HD 7970M 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 HD 7970M and Radeon R7 M340.
    Radeon HD 7970M Check Price
    Radeon R7 M340 Check Price

    Radeon HD 7970M and Radeon R7 M340 are Laptop Graphics Cards

    Note: Radeon HD 7970M 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 HD 7970M or Radeon R7 M340 here:

    Radeon HD 7970M Laptops
    Radeon R7 M340 Laptops

    Main Specs

      Radeon HD 7970M Radeon R7 M340
    Power consumption (TDP) 100 Watt
    Interface MXM-B (3.0) 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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    • Radeon HD 7970M is connected by MXM-B (3.0), and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • Radeon R7 M340 has 2 GB more memory, than Radeon HD 7970M.
    • Both cards are used in Laptops.
    • Radeon HD 7970M and Radeon R7 M340 are build with GCN architecture.
    • Core clock speed of Radeon R7 M340 is 171 MHz higher, than Radeon HD 7970M.
    • Radeon HD 7970M and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of Radeon HD 7970M is 3800 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 18−20 0−1
    ultra / 1080p 10−12 −
    QHD / 1440p 5−6 0−1
    4K / 2160p 4−5 −
    low / 720p 35−40 1−2
    medium / 1080p 21−24 0−1
    The average gaming FPS of Radeon HD 7970M in Assassin's Creed Odyssey is 3600% more, than Radeon R7 M340.

    Full Specs

      Radeon HD 7970M Radeon R7 M340
    Architecture GCN GCN
    Code name Wimbledon XT Meso Pro DDR3
    Type Laptop Laptop
    Release date 1 May 2012 16 June 2015
    Pipelines 1280 320
    Core clock speed 850 MHz 1021 MHz
    Boost Clock 1021 MHz
    Transistor count 2,800 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 68.00 17.16
    Floating-point performance 2,176 gflops 549.1 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 4800 MHz 1000 MHz
    Memory bandwidth 153.6 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 (11_1)
    Shader Model 5.1 5.1
    OpenGL 4.6 4.4
    OpenCL 1.2 Not Listed
    Vulkan 1.2.131 +
    FreeSync +
    Bus support PCIe 3.0
    Bitcoin / BTC (SHA256) 254 Mh/s 74 Mh/s
    Laptop size large
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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