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    GeForce GT 640M vs Radeon R9 M385

    In this comparison between GeForce GT 640M and Radeon R9 M385 you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce GT 640M will be the best choice, for others Radeon R9 M385 will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    Radeon R9 M385 Check Price

    GeForce GT 640M and Radeon R9 M385 are Laptop Graphics Cards

    Note: GeForce GT 640M and Radeon R9 M385 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 or Radeon R9 M385 here:

    GeForce GT 640M Laptops
    Radeon R9 M385 Laptops

    Main Specs

      GeForce GT 640M Radeon R9 M385
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs No outputs
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    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon R9 M385 has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon R9 M385 - with GCN.
    • GeForce GT 640M and Radeon R9 M385 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M is 300 MHz higher, than Radeon R9 M385.

    Game benchmarks

    high / 1080p 0−1 10−12
    ultra / 1080p 0−1 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 10−12 24−27
    medium / 1080p 2−3 12−14
    The average gaming FPS of Radeon R9 M385 in Assassin's Creed Odyssey is 216% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon R9 M385
    Architecture Kepler GCN
    Code name N13P-GS Strato
    Type Laptop Laptop
    Release date 22 March 2012 16 June 2015
    Pipelines 384 896
    Boost Clock 645 MHz 1100 MHz
    Transistor count 1,270 million 2,080 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 56.00
    Floating-point performance 480.0 gflops 1,792 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 1500 MHz
    Memory bandwidth 76.8 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 6.3
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan 1.1.126
    CUDA +
    FreeSync +
    CUDA cores 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) 18 Mh/s
    Laptop size medium sized medium sized
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
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