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    GeForce GTX 580M vs Radeon R9 M395X

    In this comparison between GeForce GTX 580M and Radeon R9 M395X 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 GTX 580M will be the best choice, for others Radeon R9 M395X will be their preference. Study the comparison tables below and make your choice.
    GeForce GTX 580M Check Price
    Radeon R9 M395X Check Price

    GeForce GTX 580M and Radeon R9 M395X are Laptop Graphics Cards

    Note: GeForce GTX 580M and Radeon R9 M395X 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 GTX 580M or Radeon R9 M395X here:

    GeForce GTX 580M Laptops
    Radeon R9 M395X Laptops

    Main Specs

      GeForce GTX 580M Radeon R9 M395X
    Power consumption (TDP) 100 Watt 250 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors None None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 MB 4 GB
    Display Connectors No outputs No outputs
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    • Radeon R9 M395X has 150% more power consumption, than GeForce GTX 580M.
    • GeForce GTX 580M is connected by MXM-B (3.0), and Radeon R9 M395X uses PCIe 3.0 x16 interface.
    • Radeon R9 M395X has 2 GB more memory, than GeForce GTX 580M.
    • Both cards are used in Laptops.
    • GeForce GTX 580M is build with Fermi architecture, and Radeon R9 M395X - with GCN 3.
    • Core clock speed of Radeon R9 M395X is 103 MHz higher, than GeForce GTX 580M.
    • GeForce GTX 580M is manufactured by 40 nm process technology, and Radeon R9 M395X - by 28 nm process technology.
    • Memory clock speed of GeForce GTX 580M is 250 MHz higher, than Radeon R9 M395X.

    Game benchmarks

    high / 1080p 10−12 24−27
    ultra / 1080p 6−7 14−16
    QHD / 1440p 1−2 9−10
    4K / 2160p − 6−7
    low / 720p 24−27 45−50
    medium / 1080p 14−16 30−35
    The average gaming FPS of Radeon R9 M395X in Assassin's Creed Odyssey is 136% more, than GeForce GTX 580M.

    Full Specs

      GeForce GTX 580M Radeon R9 M395X
    Architecture Fermi GCN 3
    Code name N12E-GTX2 Amethyst XT
    Type Laptop Laptop
    Release date 28 June 2011 16 October 2014
    Pipelines 384 2048
    Core clock speed 620 MHz 723 MHz
    Transistor count 1,950 million 5,000 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 39.7 billion/sec 92.54
    Floating-point performance 952.3 gflops 2,961 gflops
    Memory bus width 256 Bit 256 Bit
    Memory clock speed 1500 MHz 1250 MHz
    Memory bandwidth 96.0 GB/s 160.0 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 6.3
    OpenGL 4.5 4.4
    OpenCL 1.1 Not Listed
    Vulkan N/A
    CUDA +
    FreeSync +
    CUDA cores 384
    Bus support PCI-E 2.0 PCIe 3.0
    SLI options +
    3D Blu-Ray +
    3D Gaming +
    Bitcoin / BTC (SHA256) 40 Mh/s 413 Mh/s
    Laptop size large large
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    TrueAudio +
    ZeroCore +
    Switchable graphics +
    Mantle +
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