I find it best to run an extention called "YouTube5" in Safari for my PowerBook. You can set the quality of the video you want it to load, let's say 480p. It will load the video in HTML5 at 480p. Replaces Flash in terms of YouTube and loads fairly fast. Extentions require a newer version of Safari that requires 10.5.8 or later. Plus, it will work on PPC and it is still being developed.
The one thing I have noticed on the PowerBook using YouTube5 is the fact that I have to let it buffer the video until it is at least 75% of the way done or it bogs down the video card and drops frames like crazy, and that's at 360p on a 30Mbps connection. But hey, it's let's you use the native YouTube home page, and not some 3rd party app.
The nice part about all the AlBooks are the fact they use the AirPort Extreme card (the later ones were integrated), which can still be used on most modern networks. It still works with my 6th Gen (802.11ac) AirPort Extreme without hiccups.
The one thing I have noticed on the PowerBook using YouTube5 is the fact that I have to let it buffer the video until it is at least 75% of the way done or it bogs down the video card and drops frames like crazy, and that's at 360p on a 30Mbps connection. But hey, it's let's you use the native YouTube home page, and not some 3rd party app.
The nice part about all the AlBooks are the fact they use the AirPort Extreme card (the later ones were integrated), which can still be used on most modern networks. It still works with my 6th Gen (802.11ac) AirPort Extreme without hiccups.