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    GeForce GT 545 vs GeForce GT 645M

    When comparing GeForce GT 545 and GeForce GT 645M, we look primarily at benchmarks and game tests. But it is not only about the numbers. Often you can find third-party models with higher clock speeds, better cooling, or a customizable RGB lighting. Not all of them will have all the features you need. Another thing to consider is the port selection. Most graphics cards have at least one DisplayPort and HDMI interface, but some monitors require DVI. Before you buy, check the TDP of the graphics card - this characteristic will help you estimate the consumption of the graphics card. You may even have to upgrade your PSU to meet its requirements. An important factor when choosing between GeForce GT 545 and GeForce GT 645M is the price. Does the additional cost justify the performance hit? Our comparison should help you make the right decision.
    GeForce GT 545
    GeForce GT 645M 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 545 GeForce GT 645M
    Power consumption (TDP) 70 Watt 32 Watt
    Interface PCIe 2.0 x16 PCIe 3.0 x16
    Supplementary power connectors None
    Memory type DDR3 DDR3\GDDR5
    Maximum RAM amount 1536 MB 2 GB
    Display Connectors 1x DVI, 1x HDMI, 1x VGA No outputs
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    • GeForce GT 545 has 118% more power consumption, than GeForce GT 645M.
    • GeForce GT 545 is connected by PCIe 2.0 x16, and GeForce GT 645M uses PCIe 3.0 x16 interface.
    • GeForce GT 545 has 1534 GB more memory, than GeForce GT 645M.
    • GeForce GT 545 is used in Desktops, and GeForce GT 645M - in Laptops.
    • GeForce GT 545 is build with Fermi 2.0 architecture, and GeForce GT 645M - with Kepler.
    • GeForce GT 545 is manufactured by 40 nm process technology, and GeForce GT 645M - by 28 nm process technology.
    • Memory clock speed of GeForce GT 645M is 200 MHz higher, than GeForce GT 545.

    Game benchmarks

    high / 1080p 2−3 1−2
    ultra / 1080p 0−1 0−1
    QHD / 1440p 0−1 0−1
    low / 720p 12−14 12−14
    medium / 1080p 3−4 2−3
    The average gaming FPS of GeForce GT 545 in Assassin's Creed Odyssey is 20% more, than GeForce GT 645M.

    Full Specs

      GeForce GT 545 GeForce GT 645M
    Architecture Fermi 2.0 Kepler
    Code name GF116 N13P-GS
    Type Desktop Laptop
    Release date 14 May 2011 22 March 2012
    Pipelines 144 384
    Core clock speed 720 MHz
    Transistor count 1,170 million 1,270 million
    Manufacturing process technology 40 nm 28 nm
    Texture fill rate 17.28 22.7 billion/sec
    Floating-point performance 414.7 gflops 544.5 gflops
    Length 145 mm
    Memory bus width 192 Bit 128bit
    Memory clock speed 1600 MHz 1800 MHz
    Memory bandwidth 38.4 GB/s
    Shared memory -
    DirectX 12 (11_0) 12 API
    Shader Model 5.1 5.1
    OpenGL 4.6 4.5
    OpenCL 1.1 1.1
    Vulkan N/A 1.1.126
    CUDA 2.1 +
    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) 35 Mh/s 19 Mh/s
    Laptop size medium sized
    Optimus +
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