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    GeForce GTX 870M vs Radeon R7 M340

    If you are going to buy a new graphics card and are choosing between GeForce GTX 870M 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 870M stacks up against Radeon R7 M340, check out specs charts below.
    GeForce GTX 870M Check Price
    Radeon R7 M340 Check Price

    GeForce GTX 870M and Radeon R7 M340 are Laptop Graphics Cards

    Note: GeForce GTX 870M 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 870M or Radeon R7 M340 here:

    GeForce GTX 870M Laptops
    Radeon R7 M340 Laptops

    Main Specs

      GeForce GTX 870M 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 6 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 870M is connected by MXM-B (3.0), and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • GeForce GTX 870M has 2 GB more memory, than Radeon R7 M340.
    • Both cards are used in Laptops.
    • GeForce GTX 870M is build with Kepler architecture, and Radeon R7 M340 - with GCN.
    • Core clock speed of Radeon R7 M340 is 80 MHz higher, than GeForce GTX 870M.
    • GeForce GTX 870M and Radeon R7 M340 are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 16−18 0−1
    ultra / 1080p 10−11 −
    QHD / 1440p 4−5 0−1
    low / 720p 35−40 1−2
    medium / 1080p 21−24 0−1
    The average gaming FPS of GeForce GTX 870M in Assassin's Creed Odyssey is 3600% more, than Radeon R7 M340.

    Full Specs

      GeForce GTX 870M Radeon R7 M340
    Architecture Kepler GCN
    Code name N15P-GT Meso Pro DDR3
    Type Laptop Laptop
    Release date 12 March 2014 16 June 2015
    Pipelines 1344 320
    Core clock speed 941 MHz 1021 MHz
    Boost Clock 967 MHz 1021 MHz
    Transistor count 3,540 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 108.3 17.16
    Floating-point performance 2,599 gflops 549.1 gflops
    Memory bus width 192 Bit 128 Bit
    Memory clock speed 1000 MHz
    Memory bandwidth 120.0 GB/s 16 GB/s
    Shared memory - -
    DirectX 12 (11_0)
    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 2.0, PCI Express 3.0 PCIe 3.0
    SLI options +
    HDMI +
    Bitcoin / BTC (SHA256) 82 Mh/s 74 Mh/s
    Laptop size large
    Standard memory configuration GDDR5
    eDP 1.2 signal support Up to 3840x2160
    LVDS signal support Up to 1920x1200
    DisplayPort Multimode (DP++) support Up to 3840x2160
    HDCP content protection +
    7.1 channel HD audio on HDMI +
    TrueHD and DTS-HD audio bitstreaming +
    H.264, VC1, MPEG2 1080p video decoder +
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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