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    GeForce GT 645M vs Radeon RX 460

    If you are going to buy a new graphics card and are choosing between GeForce GT 645M and Radeon RX 460, 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 Radeon RX 460, check out specs charts below.
    GeForce GT 645M Check Price
    Radeon RX 460 Check Price

    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 RX 460
    Power consumption (TDP) 32 Watt 75 Watt
    Interface PCIe 3.0 x16 PCIe 3.0 x8
    Supplementary power connectors None
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 4 GB
    Display Connectors No outputs 1x DVI, 1x HDMI, 1x DisplayPort
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    • Radeon RX 460 has 134% more power consumption, than GeForce GT 645M.
    • GeForce GT 645M is connected by PCIe 3.0 x16, and Radeon RX 460 uses PCIe 3.0 x8 interface.
    • Radeon RX 460 has 2 GB more memory, than GeForce GT 645M.
    • GeForce GT 645M is used in Laptops, and Radeon RX 460 - in Desktops.
    • GeForce GT 645M is build with Kepler architecture, and Radeon RX 460 - with Polaris.
    • GeForce GT 645M is manufactured by 28 nm process technology, and Radeon RX 460 - by 14 nm process technology.
    • Memory clock speed of Radeon RX 460 is 5200 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 21−24
    ultra / 1080p 0−1 12−14
    QHD / 1440p 0−1 7−8
    4K / 2160p − 5−6
    low / 720p 12−14 40−45
    medium / 1080p 2−3 24−27
    The average gaming FPS of Radeon RX 460 in Assassin's Creed Odyssey is 500% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M Radeon RX 460
    Architecture Kepler Polaris
    Code name N13P-GS Polaris 11 / Baffin XT
    Type Laptop Desktop
    Release date 22 March 2012 8 August 2016
    Pipelines 384 896
    Core clock speed 1090 MHz
    Boost Clock 1200 MHz
    Transistor count 1,270 million 3,000 million
    Manufacturing process technology 28 nm 14 nm
    Texture fill rate 22.7 billion/sec 67.20
    Floating-point performance 544.5 gflops 2,150 gflops
    Length 170 mm
    Memory bus width 128bit 128 Bit
    Memory clock speed 1800 MHz 7000 MHz
    Memory bandwidth 112.0 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 +
    FreeSync +
    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 240 Mh/s
    Laptop size medium sized
    Optimus +
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