On Jan 4, 2011, at 8:56 AM, Nestamicky wrote: > On 03/01/11 10:16 AM, Bruce Johnson wrote: >> Yes it DOES have to do with the video card. 10.4 offloads a bunch of >> processing to the video GPU if possible (and it's not just Core Video stuff). > Was this an error on Apple's side.
?? No this was a conscious design decision in 10.4 on the part of Apple, part of the really bug 'under-the-hood' improvements in 10.4. See John Siracusa's in depth review of 10.4: <http://arstechnica.com/apple/reviews/2005/04/macosx-10-4.ars/> the whole discussion of Quartz starting at page 13 is what I'm referring to. > Was it fixed in 10.5. No, it was significantly enhanced in 10.5. OSX offloads much more processing onto the video card, the Core Video, Core image technologies are much improved. > Why would they do this? Because Video card GPU's are VASTLY faster at these sorts of calculations than the CPU in the Mac. > Could this explain similar problems I have on my Sawtooth with 10.4 and a > good video card. Lots of questions, some of which are just thoughts. Possibly. More likely, however, is that the streaming videos we get today are simply bigger...most are now HD using very processor-dependent codecs. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
