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    GeForce GT 645M vs Mobility Radeon HD 5830

    If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Mobility Radeon HD 5830, 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 GT 645M stacks up against Mobility Radeon HD 5830, check out specs charts below.
    GeForce GT 645M Check Price
    Mobility Radeon HD 5830 Check Price

    GeForce GT 645M and Mobility Radeon HD 5830 are Laptop Graphics Cards

    Note: GeForce GT 645M and Mobility Radeon HD 5830 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 GT 645M or Mobility Radeon HD 5830 here:

    GeForce GT 645M Laptops
    Mobility Radeon HD 5830 Laptops

    Main Specs

      GeForce GT 645M Mobility Radeon HD 5830
    Power consumption (TDP) 32 Watt 24 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    Memory type DDR3\GDDR5 DDR3, GDDR3
    Maximum RAM amount 2 GB 1 GB
    Display Connectors No outputs No outputs
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    • GeForce GT 645M has 33% more power consumption, than Mobility Radeon HD 5830.
    • GeForce GT 645M is connected by PCIe 3.0 x16, and Mobility Radeon HD 5830 uses PCIe 2.0 x16 interface.
    • GeForce GT 645M has 1 GB more memory, than Mobility Radeon HD 5830.
    • Both cards are used in Laptops.
    • GeForce GT 645M is build with Kepler architecture, and Mobility Radeon HD 5830 - with Terascale 2.
    • GeForce GT 645M is manufactured by 28 nm process technology, and Mobility Radeon HD 5830 - by 40 nm process technology.
    • Memory clock speed of GeForce GT 645M is 1000 MHz higher, than Mobility Radeon HD 5830.

    Game benchmarks

    high / 1080p 1−2 4−5
    ultra / 1080p 0−1 2−3
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 16−18
    medium / 1080p 2−3 6−7
    The average gaming FPS of Mobility Radeon HD 5830 in Assassin's Creed Odyssey is 80% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M Mobility Radeon HD 5830
    Architecture Kepler Terascale 2
    Code name N13P-GS Broadway
    Type Laptop Laptop
    Release date 22 March 2012 7 January 2010
    Pipelines 384 800
    Core clock speed 500 MHz
    Transistor count 1,270 million 1,040 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 22.7 billion/sec 20.00
    Floating-point performance 544.5 gflops 800.0 gflops
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 MHz 800 MHz
    Memory bandwidth 25.6 GB/s
    Shared memory - -
    DirectX 12 API 11.2 (11_0)
    Shader Model 5.1 5.0
    OpenGL 4.5 4.4
    OpenCL 1.1 1.2
    Vulkan 1.1.126 N/A
    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 large
    Optimus +
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