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    GeForce GT 640M vs GeForce GTX 460M

    If you are going to buy a new graphics card and are choosing between GeForce GT 640M and GeForce GTX 460M, 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 GT 640M stacks up against GeForce GTX 460M, check out specs charts below.
    GeForce GT 640M Check Price
    GeForce GTX 460M Check Price

    GeForce GT 640M and GeForce GTX 460M are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce GTX 460M 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 GeForce GTX 460M here:

    GeForce GT 640M Laptops
    GeForce GTX 460M Laptops

    Main Specs

      GeForce GT 640M GeForce GTX 460M
    Power consumption (TDP) 32 Watt 50 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 1536 MB
    Display Connectors No outputs No outputs
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    • GeForce GTX 460M has 56% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 460M uses PCIe 2.0 x16 interface.
    • GeForce GTX 460M has 1534 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 460M - with Fermi.
    • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce GTX 460M - by 40 nm process technology.
    • Memory clock speed of GeForce GT 640M is 550 MHz higher, than GeForce GTX 460M.

    Game benchmarks

    high / 1080p 0−1 2−3
    ultra / 1080p 0−1 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 12−14
    medium / 1080p 2−3 5−6
    The average gaming FPS of GeForce GTX 460M in Assassin's Creed Odyssey is 50% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 460M
    Architecture Kepler Fermi
    Code name N13P-GS N11E-GS
    Type Laptop Laptop
    Release date 22 March 2012 3 September 2010
    Pipelines 384 192
    Core clock speed 1350 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 1,170 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 16.1 billion/sec
    Floating-point performance 480.0 gflops 518.4 gflops
    Memory bus width 128bit 192 Bit
    Memory clock speed 1800 - 4000 MHz 1250 MHz
    Memory bandwidth 60.0 GB/s
    Shared memory - -
    DirectX 12 API 12 API with Feature Level 12.1
    Shader Model 5.1 5.1
    OpenGL 4.5 4.5
    OpenCL 1.1 1.1
    Vulkan 1.1.126 N/A
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    SLI options +
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 33 Mh/s
    Laptop size medium sized large
    Optimus +
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