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    GeForce GTX 580M vs Radeon R9 M365X

    If you are going to buy a new graphics card and are choosing between GeForce GTX 580M and Radeon R9 M365X, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the GeForce GTX 580M stacks up against Radeon R9 M365X, check out specs charts below.
    GeForce GTX 580M Check Price
    Radeon R9 M365X Check Price

    GeForce GTX 580M and Radeon R9 M365X are Laptop Graphics Cards

    Note: GeForce GTX 580M and Radeon R9 M365X 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 M365X here:

    GeForce GTX 580M Laptops
    Radeon R9 M365X Laptops

    Main Specs

      GeForce GTX 580M Radeon R9 M365X
    Power consumption (TDP) 100 Watt
    Interface MXM-B (3.0) PCIe 3.0 x16
    Supplementary power connectors None
    Memory type GDDR5 GDDR5
    Maximum RAM amount 2 MB 4 GB
    Display Connectors No outputs No outputs
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    • GeForce GTX 580M is connected by MXM-B (3.0), and Radeon R9 M365X uses PCIe 3.0 x16 interface.
    • Radeon R9 M365X 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 M365X - with GCN.
    • Core clock speed of Radeon R9 M365X is 280 MHz higher, than GeForce GTX 580M.
    • GeForce GTX 580M is manufactured by 40 nm process technology, and Radeon R9 M365X - by 28 nm process technology.
    • Memory clock speed of GeForce GTX 580M is 375 MHz higher, than Radeon R9 M365X.

    Game benchmarks

    high / 1080p 10−12 6−7
    ultra / 1080p 6−7 4−5
    QHD / 1440p 1−2 0−1
    low / 720p 24−27 16−18
    medium / 1080p 14−16 8−9
    The average gaming FPS of GeForce GTX 580M in Assassin's Creed Odyssey is 55% more, than Radeon R9 M365X.

    Full Specs

      GeForce GTX 580M Radeon R9 M365X
    Architecture Fermi GCN
    Code name N12E-GTX2 Tropo
    Type Laptop Laptop
    Release date 28 June 2011 6 May 2015
    Pipelines 384 640
    Core clock speed 620 MHz 900 MHz
    Boost Clock 925 MHz
    Transistor count 1,950 million 1,500 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 39.7 billion/sec 37.00
    Floating-point performance 952.3 gflops 1,184 gflops
    Memory bus width 256 Bit 128 Bit
    Memory clock speed 1500 MHz 1125 MHz
    Memory bandwidth 96.0 GB/s 72 GB/s
    Shared memory - -
    DirectX 12 API
    Shader Model 5.1 5.1
    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
    Laptop size large medium sized
    Optimus +
    Eyefinity +
    HD3D +
    PowerTune +
    DualGraphics +
    ZeroCore +
    Switchable graphics +
    Mantle +
    Compute units 10
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