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    GeForce GT 645M vs GeForce GTX 460

    If you are going to buy a new graphics card and are choosing between GeForce GT 645M and GeForce GTX 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 GeForce GTX 460, check out specs charts below.
    GeForce GT 645M Check Price
    GeForce GTX 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 GeForce GTX 460
    Power consumption (TDP) 32 Watt 160 Watt
    Interface PCIe 3.0 x16 PCIe 2.0 x16
    Supplementary power connectors 6-pin & 6-pin
    Memory type DDR3\GDDR5 GDDR5
    Maximum RAM amount 2 GB 768 MB
    Display Connectors No outputs 2x DVI, 1x mini-HDMI
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    • GeForce GTX 460 has 400% more power consumption, than GeForce GT 645M.
    • GeForce GT 645M is connected by PCIe 3.0 x16, and GeForce GTX 460 uses PCIe 2.0 x16 interface.
    • GeForce GTX 460 has 766 GB more memory, than GeForce GT 645M.
    • GeForce GT 645M is used in Laptops, and GeForce GTX 460 - in Desktops.
    • GeForce GT 645M is build with Kepler architecture, and GeForce GTX 460 - with Fermi.
    • GeForce GT 645M is manufactured by 28 nm process technology, and GeForce GTX 460 - by 40 nm process technology.
    • Memory clock speed of GeForce GTX 460 is 1800 MHz higher, than GeForce GT 645M.

    Game benchmarks

    high / 1080p 1−2 10−12
    ultra / 1080p 0−1 6−7
    QHD / 1440p 0−1 1−2
    low / 720p 12−14 24−27
    medium / 1080p 2−3 14−16
    The average gaming FPS of GeForce GTX 460 in Assassin's Creed Odyssey is 240% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 645M GeForce GTX 460
    Architecture Kepler Fermi
    Code name N13P-GS GF104
    Type Laptop Desktop
    Release date 22 March 2012 12 July 2010
    Pipelines 384 336
    Core clock speed 675 MHz
    Transistor count 1,270 million 1,950 million
    Manufacturing process technology 28 nm 40 nm
    Texture fill rate 22.7 billion/sec 37.80
    Floating-point performance 544.5 gflops 907.2 gflops
    Length 8.25"(210 mm) (21 cm)
    Memory bus width 128bit 192 Bit
    Memory clock speed 1800 MHz 3600 MHz
    Memory bandwidth 86.4 GB/s
    Shared memory -
    DirectX 12 API 12 (11_0)
    Shader Model 5.1 5.1
    OpenGL 4.5 4.1
    OpenCL 1.1 1.1
    Vulkan 1.1.126 N/A
    CUDA + +
    CUDA cores 384
    Bus support PCI Express 2.0, PCI Express 3.0 16x PCI-E 2.0
    Height 4.376"(111 mm) (11.1 cm)
    SLI options +
    Multi monitor support +
    HDMI + +
    HDCP + +
    Maximum VGA resolution Up to 2048x1536 2048x1536
    Audio input for HDMI Internal
    3D Blu-Ray +
    Bitcoin / BTC (SHA256) 19 Mh/s 66 Mh/s
    Laptop size medium sized
    Optimus +
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