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    GeForce 940MX vs GeForce GTX 580

    When comparing GeForce 940MX and GeForce GTX 580, 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 940MX and GeForce GTX 580 is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce 940MX Check Price
    GeForce GTX 580 Check Price

    GeForce 940MX is a Laptop Graphics Card

    Note: GeForce 940MX 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 940MX here:

    GeForce 940MX Laptops

    Main Specs

      GeForce 940MX GeForce GTX 580
    Power consumption (TDP) 23 Watt 244 Watt
    Interface PCIe 3.0 x8 PCIe 2.0 x16
    Supplementary power connectors None One 6-pin and One 8-pin
    Memory type DDR3, GDDR5 GDDR5
    Maximum RAM amount 4 GB 1536 MB
    Display Connectors No outputs 2x DVI, 1x mini-HDMI
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    • GeForce GTX 580 has 960% more power consumption, than GeForce 940MX.
    • GeForce 940MX is connected by PCIe 3.0 x8, and GeForce GTX 580 uses PCIe 2.0 x16 interface.
    • GeForce GTX 580 has 1532 GB more memory, than GeForce 940MX.
    • GeForce 940MX is used in Laptops, and GeForce GTX 580 - in Desktops.
    • GeForce 940MX is build with Maxwell architecture, and GeForce GTX 580 - with Fermi.
    • Core clock speed of GeForce GTX 580 is 422 MHz higher, than GeForce 940MX.
    • GeForce 940MX is manufactured by 28 nm process technology, and GeForce GTX 580 - by 40 nm process technology.
    • Memory clock speed of GeForce 940MX is 1996 MHz higher, than GeForce GTX 580.

    Game benchmarks

    high / 1080p 7−8 21−24
    ultra / 1080p 4−5 14−16
    QHD / 1440p 0−1 8−9
    4K / 2160p − 6−7
    low / 720p 16−18 40−45
    medium / 1080p 8−9 27−30
    The average gaming FPS of GeForce GTX 580 in Assassin's Creed Odyssey is 200% more, than GeForce 940MX.

    Full Specs

      GeForce 940MX GeForce GTX 580
    Architecture Maxwell Fermi
    Code name N16S-GTR-B/S GF110
    Type Laptop Desktop
    Release date 10 March 2016 9 November 2010
    Pipelines 384 512
    Core clock speed 1122 MHz 1544 MHz
    Boost Clock 1242 MHz
    Transistor count 1,870 million 3,000 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 23.83 49.4 billion/sec
    Floating-point performance 762.6 gflops 1,581.1 gflops
    Length 10.5" (267 mm) (26.7 cm)
    Memory bus width 64 Bit 384 Bit
    Memory clock speed 4000 MHz 2004 MHz (4008 data rate)
    Memory bandwidth 40.1 GB/s 192.4 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.2
    OpenCL 1.2 1.1
    Vulkan 1.1 N/A
    CUDA + +
    CUDA cores 512
    Bus support PCI Express 3.0 PCI-E 2.0 x 16
    Height 4.376" (111 mm) (11.1 cm)
    SLI options +
    Multi monitor support +
    HDMI +
    Maximum VGA resolution 2048x1536
    Audio input for HDMI Internal
    Bitcoin / BTC (SHA256) 102 Mh/s 142 Mh/s
    Laptop size medium sized
    Optimus +
    GPU Boost 2.0
    GameWorks +
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