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    GeForce GT 640 vs Quadro K4000M

    When comparing GeForce GT 640 and Quadro K4000M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 640 and Quadro K4000M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 640 Check Price
    Quadro K4000M Check Price

    Quadro K4000M is a Laptop Graphics Card

    Note: Quadro K4000M 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 Quadro K4000M here:

    Quadro K4000M Laptops

    Main Specs

      GeForce GT 640 Quadro K4000M
    Power consumption (TDP) 65 Watt 100 Watt
    Interface PCIe 3.0 x16 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors 1x DVI, 1x HDMI, 1x DisplayPort No outputs
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    • Quadro K4000M has 53% more power consumption, than GeForce GT 640.
    • GeForce GT 640 is connected by PCIe 3.0 x16, and Quadro K4000M uses MXM-B (3.0) interface.
    • Quadro K4000M has 2 GB more memory, than GeForce GT 640.
    • GeForce GT 640 is used in Desktops, and Quadro K4000M - in Mobile workstations.
    • GeForce GT 640 and Quadro K4000M are build with Kepler architecture.
    • Core clock speed of GeForce GT 640 is 302 MHz higher, than Quadro K4000M.
    • GeForce GT 640 and Quadro K4000M are manufactured by 28 nm process technology.
    • Memory clock speed of Quadro K4000M is 1018 MHz higher, than GeForce GT 640.

    Game benchmarks

    high / 1080p 2−3 10−11
    ultra / 1080p 1−2 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 14−16 21−24
    medium / 1080p 5−6 12−14
    The average gaming FPS of Quadro K4000M in Assassin's Creed Odyssey is 116% more, than GeForce GT 640.

    Full Specs

      GeForce GT 640 Quadro K4000M
    Architecture Kepler Kepler
    Code name GK107 N14E-Q3
    Type Desktop Mobile workstation
    Release date 5 June 2012 1 June 2012
    Pipelines 384 960
    Core clock speed 902 MHz 600 MHz
    Transistor count 1,270 million 3,540 million
    Manufacturing process technology 28 nm 28 nm
    Texture fill rate 28.86 48.08
    Floating-point performance 692.7 gflops 1,154 gflops
    Length 145 mm
    Memory bus width 128 Bit 256 Bit
    Memory clock speed 1782 MHz 2800 MHz
    Memory bandwidth 28.51 GB/s 89.6 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.6 4.6
    OpenCL 1.2 1.2
    Vulkan 1.1.126 1.1.126
    CUDA 3.0 +
    Bitcoin / BTC (SHA256) 24 Mh/s 37 Mh/s
    Laptop size large
    Optimus +
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