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    GeForce GTX 680M vs Radeon R7 M340

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GTX 680M and Radeon R7 M340. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GTX 680M and Radeon R7 M340. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GTX 680M Check Price
    Radeon R7 M340 Check Price

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

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

    GeForce GTX 680M Laptops
    Radeon R7 M340 Laptops

    Main Specs

      GeForce GTX 680M 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 4 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 680M is connected by MXM-B (3.0), and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • GeForce GTX 680M and Radeon R7 M340 have maximum RAM of 4 GB.
    • Both cards are used in Laptops.
    • GeForce GTX 680M 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 680M.
    • GeForce GTX 680M and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680M is 800 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 GeForce GTX 680M in Assassin's Creed Odyssey is 3100% more, than Radeon R7 M340.

    Full Specs

      GeForce GTX 680M Radeon R7 M340
    Architecture Kepler GCN
    Code name N13E-GTX Meso Pro DDR3
    Type Laptop Laptop
    Release date 4 June 2012 16 June 2015
    Pipelines 1344 320
    Core clock speed 720 MHz 1021 MHz
    Boost Clock 758 MHz 1021 MHz
    Transistor count 3,540 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 80.6 billion/sec 17.16
    Floating-point performance 2,038 gflops 549.1 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 1800 MHz 1000 MHz
    Memory bandwidth 115.2 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126 +
    CUDA +
    FreeSync +
    CUDA cores 1344
    Bus support PCI Express 3.0 PCIe 3.0
    SLI options +
    Bitcoin / BTC (SHA256) 100 Mh/s 74 Mh/s
    Laptop size large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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