Mr. Dee
macrumors 603
Steven Troughton-Smith for nostalgia purposes, posted a picture of his Intel Mac Developer Kit Apple loaned to developers for about $999. One of things he remembered being impressed with was how fast OS X was on it and the same for early commercial Intel Macs that came to market in 2006.If you recall, PPC was still had more powerful processing power than the then Xeon and P4 chips vs 970fx G5's when It's Tru3 was presented on WWDC stage for OSX ... Jobs stated OSX was 'singing' on Intel chipset. but the performance was less at that initial time of demo and initial roleout.
He noted this was partly due to how little the code was bloated back then. It’s a different story now, just the other day someone demoed Mojave booting on a 2018 MacBook Pro 15 inch and was disappointed with the slow boot times.