On May 25, 2:20 am, Peter Haas <[email protected]> wrote: > > A dual 1.0 GHz QS 2002 (or the processor from one in a DA) takes > about 1 hour to encode a DVD5. > > A relatively fast Intel can do the same job in less than 12 > minutes ... an 8-to-1 advantage to Intel. > > The bottlenecks on the old G4s are hard to overcome: slow 133 MHz bus > v. 800 or even 1066 MHz on an Intel; huge caches on many C2D or C2Q > Intels; slow ATA/66 channels on a G4 v. 3.0 Gbps SATA on an Intel.
have you ever bothered to check Activity Monitor before leaping to a conclusion about what is actually the bottleneck? when i hear anyone say that the ATA controller (or even worse yet, the bus speed) is a bottleneck, i want to pull out some hair (very little left). 66MHz x 64bits = 528 MB/s, therefore the onboard ATA controller in a G4 is about 10-20x faster than the internal read/write of ANY single PATA HD, so it's NOT a bottleneck, the clunky old HD is the bottleneck!!! encoding a DVD means writing to the HD. before leaping to any wildly unjustified conclusions, maybe you should actually check the Activity Monitor. i'll bet you'll find that the processors on the 1gigDP are not maxed out. i put a SATA controller in my QS 1gigDP and a new 1TB HD with an internal read/write speed of 120MB/s, and it rips DVDs FASTER than my 3.3gig intel mac with a slower HD, because the processor speed is NOT the limiting factor. and for compressing the ripped DVD (which actually does max out the processors), the intel mac is LESS than 3 times faster than the QS 1gigDP. i have an intel mac ONLY because the software vendors have blackmailed me into buying one. the intel chip is grossly inferior to the PPC chips, and the newertech 7448 processors are faster than any G4 chip apple ever used, so an upgrade from OWC is not a bad option at all, so long as your software doesn't require the intel processor. -- 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
