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    GeForce GTX 680 vs Radeon R7 M340

    If you are going to buy a new graphics card and are choosing between GeForce GTX 680 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 GeForce GTX 680 stacks up against Radeon R7 M340, check out specs charts below.
    GeForce GTX 680 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

      GeForce GTX 680 Radeon R7 M340
    Power consumption (TDP) 195 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors Two 6-pin None
    Memory type GDDR5 DDR3
    Maximum RAM amount 2048 MB 4 GB
    Display Connectors 2x DVI, 1x HDMI, 1x DisplayPort No outputs
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    • GeForce GTX 680 is connected by PCIe 3.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • GeForce GTX 680 has 2044 GB more memory, than Radeon R7 M340.
    • GeForce GTX 680 is used in Desktops, and Radeon R7 M340 - in Laptops.
    • GeForce GTX 680 is build with Kepler architecture, and Radeon R7 M340 - with GCN.
    • Core clock speed of Radeon R7 M340 is 15 MHz higher, than GeForce GTX 680.
    • GeForce GTX 680 and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GTX 680 is 5000 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 35−40 0−1
    ultra / 1080p 21−24 −
    QHD / 1440p 16−18 0−1
    4K / 2160p 10−11 −
    low / 720p 60−65 1−2
    medium / 1080p 40−45 0−1
    The average gaming FPS of GeForce GTX 680 in Assassin's Creed Odyssey is 6100% more, than Radeon R7 M340.

    Full Specs

      GeForce GTX 680 Radeon R7 M340
    Architecture Kepler GCN
    Code name GK104 Meso Pro DDR3
    Type Desktop Laptop
    Release date 22 March 2012 16 June 2015
    Pipelines 1536 320
    Core clock speed 1006 MHz 1021 MHz
    Boost Clock 1058 MHz 1021 MHz
    Transistor count 3,540 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 128.8 billion/sec 17.16
    Floating-point performance 3,090.4 gflops 549.1 gflops
    Length 10.0" (25.4 cm)
    Memory bus width 256-bit GDDR5 128 Bit
    Memory clock speed 6000 MHz 1000 MHz
    Memory bandwidth 192.2 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.2 4.4
    OpenCL 1.2 Not Listed
    Vulkan 1.1.126 +
    CUDA +
    FreeSync +
    CUDA cores 1536
    Bus support PCI Express 3.0 PCIe 3.0
    Height 4.376" (11.1 cm)
    SLI options +
    Multi monitor support 4 displays
    HDMI +
    HDCP +
    Maximum VGA resolution 2048x1536
    Audio input for HDMI Internal
    Bitcoin / BTC (SHA256) 121 Mh/s 74 Mh/s
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Ethereum / ETH (DaggerHashimoto) 15 Mh/s
    Compute units 6
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