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    GeForce GT 645M vs Radeon Pro 580X

    Find out if it is worth upgrading your current GPU setup by comparing GeForce GT 645M and Radeon Pro 580X. Here you can take a closer look at graphics cards specs, such as core clock speed, memory type and size, display connectors, etc. The price, overall benchmark and gaming performances are usually defining factors when it comes to choosing between GeForce GT 645M and Radeon Pro 580X. Make sure that the graphics card has compatible dimensions and will properly fit in your new or current computer case. Also these graphics cards may have different system power recommendations, so take that into consideration and upgrade your PSU if necessary.
    GeForce GT 645M Check Price
    Radeon Pro 580X

    GeForce GT 645M is a Laptop Graphics Card

    Note: GeForce GT 645M 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 GT 645M here:

    GeForce GT 645M Laptops

    Main Specs

      GeForce GT 645M Radeon Pro 580X
    Power consumption (TDP) 32 Watt 150 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 8 GB
    Display Connectors No outputs No outputs
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    • Radeon Pro 580X has 368% more power consumption, than GeForce GT 645M.
    • Both video cards are using PCIe 3.0 x16 interface connection to a motherboard.
    • Radeon Pro 580X has 6 GB more memory, than GeForce GT 645M.
    • GeForce GT 645M is used in Laptops, and Radeon Pro 580X - in Desktops.
    • GeForce GT 645M is build with Kepler architecture, and Radeon Pro 580X - with GCN 4.0.
    • GeForce GT 645M is manufactured by 28 nm process technology, and Radeon Pro 580X - by 14 nm process technology.
    • Memory clock speed of Radeon Pro 580X is 4980 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 35−40
    ultra / 1080p 0−1 24−27
    QHD / 1440p 0−1 18−20
    4K / 2160p − 10−12
    low / 720p 12−14 60−65
    medium / 1080p 2−3 45−50
    The average gaming FPS of Radeon Pro 580X in Assassin's Creed Odyssey is 880% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M Radeon Pro 580X
    Architecture Kepler GCN 4.0
    Code name N13P-GS Polaris 20
    Type Laptop Workstation
    Release date 22 March 2012 18 March 2019
    Pipelines 384 2304
    Core clock speed 1100 MHz
    Boost Clock 1200 MHz
    Transistor count 1,270 million 5,700 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 22.7 billion/sec 172.8
    Floating-point performance 544.5 gflops
    Memory bus width 128bit 256 Bit
    Memory clock speed 1800 MHz 6780 MHz
    Memory bandwidth 217.0 GB/s
    Shared memory -
    DirectX 12 API 12 (12_0)
    Shader Model 5.1 6.4
    OpenGL 4.5 4.6
    OpenCL 1.1 2.0
    Vulkan 1.1.126 1.2.131
    CUDA +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0
    HDMI +
    HDCP +
    Maximum VGA resolution Up to 2048x1536
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s
    Laptop size medium sized
    Optimus +
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