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    GeForce GTX 680MX vs Radeon R7 M340

    In this comparison between GeForce GTX 680MX and Radeon R7 M340 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GTX 680MX will be the best choice, for others Radeon R7 M340 will be their preference. Study the comparison tables below and make your choice.
    GeForce GTX 680MX Check Price
    Radeon R7 M340 Check Price

    GeForce GTX 680MX and Radeon R7 M340 are Laptop Graphics Cards

    Note: GeForce GTX 680MX 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 GeForce GTX 680MX or Radeon R7 M340 here:

    GeForce GTX 680MX Laptops
    Radeon R7 M340 Laptops

    Main Specs

      GeForce GTX 680MX Radeon R7 M340
    Power consumption (TDP) 122 Watt
    Interface PCIe 3.0 x8
    Supplementary power connectors None
    Memory type GDDR5 DDR3
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs
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    • Radeon R7 M340 has 2 GB more memory, than GeForce GTX 680MX.
    • Both cards are used in Laptops.
    • GeForce GTX 680MX is build with Kepler architecture, and Radeon R7 M340 - with GCN.
    • Core clock speed of Radeon R7 M340 is 301 MHz higher, than GeForce GTX 680MX.
    • GeForce GTX 680MX and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680MX is 1500 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 21−24 0−1
    ultra / 1080p 12−14 −
    QHD / 1440p 7−8 0−1
    4K / 2160p 5−6 −
    low / 720p 40−45 1−2
    medium / 1080p 27−30 0−1
    The average gaming FPS of GeForce GTX 680MX in Assassin's Creed Odyssey is 4100% more, than Radeon R7 M340.

    Full Specs

      GeForce GTX 680MX Radeon R7 M340
    Architecture Kepler GCN
    Code name Meso Pro DDR3
    Type Laptop Laptop
    Release date 23 October 2012 16 June 2015
    Pipelines 1536 320
    Core clock speed 720 MHz 1021 MHz
    Boost Clock 1021 MHz
    Transistor count 3540 Million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 92.2 billion/sec 17.16
    Floating-point performance 549.1 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 2500 MHz 1000 MHz
    Memory bandwidth 160 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan +
    CUDA +
    FreeSync +
    CUDA cores 1536
    Bus support PCI Express 3.0 PCIe 3.0
    SLI options +
    3D Vision +
    Bitcoin / BTC (SHA256) 57 Mh/s 74 Mh/s
    Laptop size large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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