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    GeForce GT 640M vs GeForce GTX 670M

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 640M and GeForce GTX 670M. 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 GT 640M and GeForce GTX 670M. 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 GT 640M Check Price
    GeForce GTX 670M Check Price

    GeForce GT 640M and GeForce GTX 670M are Laptop Graphics Cards

    Note: GeForce GT 640M and GeForce GTX 670M 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 670M here:

    GeForce GT 640M Laptops
    GeForce GTX 670M Laptops

    Main Specs

      GeForce GT 640M GeForce GTX 670M
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 3 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 670M has 134% more power consumption, than GeForce GT 640M.
    • GeForce GT 640M is connected by PCIe 3.0 x16, and GeForce GTX 670M uses MXM-B (3.0) interface.
    • GeForce GTX 670M has 1 GB more memory, than GeForce GT 640M.
    • Both cards are used in Laptops.
    • GeForce GT 640M is build with Kepler architecture, and GeForce GTX 670M - with Fermi.
    • GeForce GT 640M is manufactured by 28 nm process technology, and GeForce GTX 670M - by 40 nm process technology.
    • Memory clock speed of GeForce GT 640M is 300 MHz higher, than GeForce GTX 670M.

    Game benchmarks

    high / 1080p 0−1 8−9
    ultra / 1080p 0−1 5−6
    QHD / 1440p 0−1 0−1
    low / 720p 10−12 18−20
    medium / 1080p 2−3 10−11
    The average gaming FPS of GeForce GTX 670M in Assassin's Creed Odyssey is 133% more, than GeForce GT 640M.

    Full Specs

      GeForce GT 640M GeForce GTX 670M
    Architecture Kepler Fermi
    Code name N13P-GS N13E-GS1-LP
    Type Laptop Laptop
    Release date 22 March 2012 22 March 2012
    Pipelines 384 336
    Core clock speed 598 MHz
    Boost Clock 645 MHz
    Transistor count 1,270 million 1,950 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 33.5 billion/sec
    Floating-point performance 480.0 gflops 803.7 gflops
    Memory bus width 128bit 192bit
    Memory clock speed 1800 - 4000 MHz 1500 MHz
    Memory bandwidth 72.0 GB/s
    Shared memory - -
    DirectX 12 API 12 API
    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 384 336
    Bus support PCI Express 2.0, PCI Express 3.0 PCI Express 2.0
    SLI options +
    HDMI + +
    HDCP + +
    Maximum VGA resolution Up to 2048x1536 Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 18 Mh/s 53 Mh/s
    Laptop size medium sized large
    Optimus + +
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