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    GeForce GT 640M LE vs Radeon R6 M340DX

    When comparing GeForce GT 640M LE and Radeon R6 M340DX, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640M LE and Radeon R6 M340DX is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640M LE Check Price
    Radeon R6 M340DX Check Price

    GeForce GT 640M LE and Radeon R6 M340DX are Laptop Graphics Cards

    Note: GeForce GT 640M LE and Radeon R6 M340DX 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 R6 M340DX here:

    GeForce GT 640M LE Laptops
    Radeon R6 M340DX Laptops

    Main Specs

      GeForce GT 640M LE Radeon R6 M340DX
    Power consumption (TDP) 20 Watt
    Interface PCIe 2.0 x16 IGP
    Memory type DDR3\DDR5 DDR3
    Maximum RAM amount 2 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 640M LE is connected by PCIe 2.0 x16, and Radeon R6 M340DX uses IGP interface.
    • Both cards are used in Laptops.
    • GeForce GT 640M LE is build with Fermi / Kepler architecture, and Radeon R6 M340DX - with GCN.
    • GeForce GT 640M LE and Radeon R6 M340DX are manufactured by 28 nm process technology.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p − 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 10−11
    medium / 1080p 0−1 3−4
    The average gaming FPS of Radeon R6 M340DX in Assassin's Creed Odyssey is 900% more, than GeForce GT 640M LE.

    Full Specs

      GeForce GT 640M LE Radeon R6 M340DX
    Architecture Fermi / Kepler GCN
    Code name N13P-LP Jet
    Type Laptop Laptop
    Release date 22 March 2012 3 June 2015
    Pipelines 384 704
    Boost Clock 1030 MHz
    Transistor count 585 million 690 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 24.72
    Floating-point performance 384.0 gflops
    Memory bus width 128bit
    Memory clock speed 1800 - 4000 MHz
    Shared memory - -
    DirectX 12 API 12 (11_1)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.1 1.2
    Vulkan N/A 1.2.131
    CUDA +
    CUDA cores Up to 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 14 Mh/s
    Laptop size medium sized medium sized
    Optimus +
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