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    GeForce GT 640M vs Radeon R9 A375

    In this comparison between GeForce GT 640M and Radeon R9 A375 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 A375 will be their preference. Study the comparison tables below and make your choice.
    GeForce GT 640M Check Price
    Radeon R9 A375

    GeForce GT 640M is a Laptop Graphics Card

    Note: GeForce GT 640M 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 GeForce GT 640M here:

    GeForce GT 640M Laptops

    Main Specs

      GeForce GT 640M Radeon R9 A375
    Power consumption (TDP) 32 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 2 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.
    • GeForce GT 640M and Radeon R9 A375 have maximum RAM of 2 GB.
    • GeForce GT 640M is used in Laptops, and Radeon R9 A375 - in Desktops.
    • GeForce GT 640M is build with Kepler architecture, and Radeon R9 A375 - with GCN 1.0.
    • GeForce GT 640M and Radeon R9 A375 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce GT 640M is 1796 MHz higher, than Radeon R9 A375.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p 0−1 1−2
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 12−14
    medium / 1080p 2−3 4−5
    The average gaming FPS of Radeon R9 A375 in Assassin's Creed Odyssey is 33% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M Radeon R9 A375
    Architecture Kepler GCN 1.0
    Code name N13P-GS Venus
    Type Laptop Desktop
    Release date 22 March 2012 no data
    Pipelines 384 640
    Core clock speed 900 MHz
    Boost Clock 645 MHz 925 MHz
    Transistor count 1,270 million 1,500 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 37.00
    Floating-point performance 480.0 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 - 4000 MHz 4.5 GB/s
    Memory bandwidth 72 GB/s
    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 1.1.126 1.2
    CUDA +
    CUDA cores 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) 18 Mh/s
    Laptop size medium sized
    Optimus +
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