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    GeForce 920M vs GeForce GT 640M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce 920M and GeForce GT 640M. 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 920M and GeForce GT 640M. 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 920M Check Price
    GeForce GT 640M Check Price

    GeForce 920M and GeForce GT 640M are Laptop Graphics Cards

    Note: GeForce 920M and GeForce GT 640M 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 920M or GeForce GT 640M here:

    GeForce 920M Laptops
    GeForce GT 640M Laptops

    Main Specs

      GeForce 920M GeForce GT 640M
    Power consumption (TDP) 33 Watt 32 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Memory type DDR3 DDR3\GDDR5
    Maximum RAM amount 4 GB 2 GB
    Display Connectors No outputs No outputs
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    • GeForce 920M has 3% more power consumption, than GeForce GT 640M.
    • GeForce 920M is connected by PCIe 3.0 x8, and GeForce GT 640M uses PCIe 3.0 x16 interface.
    • GeForce 920M has 2 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce 920M and GeForce GT 640M are build with Kepler architecture.
    • GeForce 920M and GeForce GT 640M are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 920M and GeForce GT 640M is 1800 MHz.

    Game benchmarks

    high / 1080p 0−1 0−1
    ultra / 1080p − 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 10−12
    medium / 1080p 0−1 2−3
    The average gaming FPS of GeForce GT 640M in Assassin's Creed Odyssey is 1000% more, than GeForce 920M.

    Full Specs

      GeForce 920M GeForce GT 640M
    Architecture Kepler Kepler
    Code name N16V-GM-S N13P-GS
    Type Laptop Laptop
    Release date 27 January 2015 22 March 2012
    Pipelines 384 384
    Core clock speed 954 MHz
    Boost Clock 645 MHz
    Transistor count 915 million 1,270 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 30.53
    Floating-point performance 297.6 gflops 480.0 gflops
    Memory bus width 64 Bit 128bit
    Memory clock speed 1800 MHz 1800 - 4000 MHz
    Memory bandwidth 14.4 GB/s
    Shared memory - -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.2 1.1
    Vulkan 1.1.126 1.1.126
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 3.0 PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 40 Mh/s 18 Mh/s
    Laptop size medium sized
    Optimus + +
    GPU Boost 2.0
    GameWorks +
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