Highest OS upgrade for G4 Mirror door-1.25Mhz?

Hi Mac friends...
Up to what Mac OS can support my old G4 Mirror door-1.25Mhz, 1.25GB ram and 80GB HDD? Is it 10.5.6? Plz help me knowing that.

Welcome,
Part of how well Leopard performs on your MDD depends on whether the video card supports Core Image. Run System Profiler (in Applications > Utilities) and select "Graphics/Displays" from the left-hand pane and your video card info including which video technologies are supported will appear in the main pane.
Sounds like plenty of people are running Leo without Core Image support, so that's not a show-stopper. It would be nice to have.

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