On Nov 25, 2009, at 6:35 PM, Ted Treen wrote: > I'd be grateful if someone with greater techie knowledge than me could > advise me on whether the fact that my G5 is SATA1 so 150Mbs as opposed > to300Mbs SATA2 is going to mean the 1.5TB will not be noticeably > slower > in use.
In real use there is no difference in SATA 1.0 and SATA 2.0 for single HDs. There is also no difference in speed for RAID 0 (stripped) pairs of two HDs. The only place you might be able to see a real world difference would be a RAID 5 array of HDs. It also might be faster to use Solid-State Drives (SSDs) instead of mechanical HDs, but these are still very expensive. I know this from experience. I mistakenly thought that the SATA bus speed was a limitation, but it's really the latency of the HDs that is the limiting factor, and latency hasn't changed much at all. Also, some SATA1 controllers are essentially SATA2 with the exception of support for rarely used feature called SSC (Spread Spectrum Clocking), so an SATA1 & SATA2 controller could be pretty much identical. -- 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 g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
