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    GeForce 920M vs GeForce GT 640

    If you are going to buy a new graphics card and are choosing between GeForce 920M and GeForce GT 640, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce 920M stacks up against GeForce GT 640, check out specs charts below.
    GeForce 920M Check Price
    GeForce GT 640 Check Price

    GeForce 920M is a Laptop Graphics Card

    Note: GeForce 920M 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 920M here:

    GeForce 920M Laptops

    Main Specs

      GeForce 920M GeForce GT 640
    Power consumption (TDP) 33 Watt 65 Watt
    Interface PCIe 3.0 x8 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3 DDR3
    Maximum RAM amount 4 GB 2 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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    • GeForce GT 640 has 96% more power consumption, than GeForce 920M.
    • GeForce 920M is connected by PCIe 3.0 x8, and GeForce GT 640 uses PCIe 3.0 x16 interface.
    • GeForce 920M has 2 GB more memory, than GeForce GT 640.
    • GeForce 920M is used in Laptops, and GeForce GT 640 - in Desktops.
    • GeForce 920M and GeForce GT 640 are build with Kepler architecture.
    • Core clock speed of GeForce 920M is 52 MHz higher, than GeForce GT 640.
    • GeForce 920M and GeForce GT 640 are manufactured by 28 nm process technology.
    • Memory clock speed of GeForce 920M is 18 MHz higher, than GeForce GT 640.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p − 1−2
    QHD / 1440p 0−1 0−1
    low / 720p 1−2 14−16
    medium / 1080p 0−1 5−6
    The average gaming FPS of GeForce GT 640 in Assassin's Creed Odyssey is 1400% more, than GeForce 920M.

    Full Specs

      GeForce 920M GeForce GT 640
    Architecture Kepler Kepler
    Code name N16V-GM-S GK107
    Type Laptop Desktop
    Release date 27 January 2015 5 June 2012
    Pipelines 384 384
    Core clock speed 954 MHz 902 MHz
    Transistor count 915 million 1,270 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 30.53 28.86
    Floating-point performance 297.6 gflops 692.7 gflops
    Length 145 mm
    Memory bus width 64 Bit 128 Bit
    Memory clock speed 1800 MHz 1782 MHz
    Memory bandwidth 14.4 GB/s 28.51 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.6
    OpenCL 1.2 1.2
    Vulkan 1.1.126 1.1.126
    CUDA + 3.0
    Bus support PCI Express 3.0
    Bitcoin / BTC (SHA256) 40 Mh/s 24 Mh/s
    Optimus +
    GPU Boost 2.0
    GameWorks +
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