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    GeForce GT 640M LE vs Radeon R7 M340

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M LE 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 GT 640M LE 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 GT 640M LE Check Price
    Radeon R7 M340 Check Price

    GeForce GT 640M LE and Radeon R7 M340 are Laptop Graphics Cards

    Note: GeForce GT 640M LE 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 GT 640M LE or Radeon R7 M340 here:

    GeForce GT 640M LE Laptops
    Radeon R7 M340 Laptops

    Main Specs

      GeForce GT 640M LE Radeon R7 M340
    Power consumption (TDP) 20 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3\DDR5 DDR3
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon R7 M340 uses PCIe 3.0 x8 interface.
    • Radeon R7 M340 has 2 GB more memory, than GeForce GT 640M LE.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon R7 M340 - with GCN.
    • GeForce GT 640M LE and Radeon R7 M340 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M LE is 800 MHz higher, than Radeon R7 M340.

    Game benchmarks

    high / 1080p 0−1 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 1−2
    medium / 1080p 0−1 0−1
    GeForce GT 640M LE and Radeon R7 M340 have the same average FPS in Assassin's Creed Odyssey.

    Full Specs

      GeForce GT 640M LE Radeon R7 M340
    Architecture Fermi / Kepler GCN
    Code name N13P-LP Meso Pro DDR3
    Type Laptop Laptop
    Release date 22 March 2012 16 June 2015
    Pipelines 384 320
    Core clock speed 1021 MHz
    Boost Clock 1021 MHz
    Transistor count 585 million 950 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 17.16
    Floating-point performance 384.0 gflops 549.1 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 1000 MHz
    Memory bandwidth 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 N/A +
    CUDA +
    FreeSync +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0 PCIe 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s 74 Mh/s
    Laptop size medium sized
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 6
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