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    GeForce 940M vs GeForce GTX 580M

    In this comparison between GeForce 940M and GeForce GTX 580M you will find out which graphics card performs better in today's games. Bear in mind that third-party versions may have more efficient cooling and higher clock speeds. This will increase cards' performance, though not by much. In addition to raw power you should also take into account the dimensions. Thicker models simply will not fit into a small mini-ITX case. The resolution of your monitor also affects the choice, since 4K gameplay requires a more powerful GPU. And don't overspend on the graphics card. Other parts of your build may also need to be upgraded, save some money for the CPU or power supply. For some people GeForce 940M will be the best choice, for others GeForce GTX 580M will be their preference. Study the comparison tables below and make your choice.
    GeForce 940M Check Price
    GeForce GTX 580M Check Price

    GeForce 940M and GeForce GTX 580M are Laptop Graphics Cards

    Note: GeForce 940M and GeForce GTX 580M 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 940M or GeForce GTX 580M here:

    GeForce 940M Laptops
    GeForce GTX 580M Laptops

    Main Specs

      GeForce 940M GeForce GTX 580M
    Power consumption (TDP) 75 Watt 100 Watt
    Interface PCIe 3.0 x8 MXM-B (3.0)
    Supplementary power connectors None
    Memory type DDR3 GDDR5
    Maximum RAM amount 4 GB 2 MB
    Display Connectors No outputs No outputs
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    • GeForce GTX 580M has 33% more power consumption, than GeForce 940M.
    • GeForce 940M is connected by PCIe 3.0 x8, and GeForce GTX 580M uses MXM-B (3.0) interface.
    • GeForce 940M has 2 GB more memory, than GeForce GTX 580M.
    • Both cards are used in Laptops.
    • GeForce 940M is build with Maxwell architecture, and GeForce GTX 580M - with Fermi.
    • Core clock speed of GeForce 940M is 452 MHz higher, than GeForce GTX 580M.
    • GeForce 940M is manufactured by 28 nm process technology, and GeForce GTX 580M - by 40 nm process technology.
    • Memory clock speed of GeForce 940M is 500 MHz higher, than GeForce GTX 580M.

    Game benchmarks

    high / 1080p 2−3 10−12
    ultra / 1080p 1−2 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 12−14 24−27
    medium / 1080p 4−5 14−16
    The average gaming FPS of GeForce GTX 580M in Assassin's Creed Odyssey is 180% more, than GeForce 940M.

    Full Specs

      GeForce 940M GeForce GTX 580M
    Architecture Maxwell Fermi
    Code name N16S-GT-S/B N12E-GTX2
    Type Laptop Laptop
    Release date 12 March 2015 28 June 2011
    Pipelines 384 384
    Core clock speed 1072 MHz 620 MHz
    Boost Clock 1176 MHz
    Transistor count 1,870 million 1,950 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 28.22 39.7 billion/sec
    Floating-point performance 903.2 gflops 952.3 gflops
    Memory bus width 64 Bit 256 Bit
    Memory clock speed 2000 MHz 1500 MHz
    Memory bandwidth 14.4 GB/s 96.0 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 N/A
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 3.0 PCI-E 2.0
    SLI options +
    3D Blu-Ray +
    3D Gaming +
    Bitcoin / BTC (SHA256) 101 Mh/s 40 Mh/s
    Laptop size medium sized large
    Optimus + +
    GPU Boost 2.0
    GameWorks +
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