On Wed, Jan 21, 2004 at 06:54:36PM +0100, Gabriel Paubert wrote: > On Wed, Jan 21, 2004 at 05:27:32PM +0100, Sven Luther wrote: > > On Wed, Jan 21, 2004 at 05:20:16PM +0100, Vincent Hanquez wrote: > > > On Wed, Jan 21, 2004 at 04:27:47PM +0100, Sven Luther wrote: > > > > Are you sure ? Notice that the only difference between a 744x and the > > > > corresponding 745x is the absence of external L3 cache. In particular, > > > > there is no way to tell which version of the CPU is used from a software > > > > point of view. So, of using a 7445 or a 7455, and given the fact that > > > > the G4 iBook doesn't have external L3 cache (or does it), which one do > > > > you believe Apple did use in the iBook ? > > > > > > Hmm. report as 7455 by cpuinfo. > > > > Yeah, i know, my 7447 also reports as a 7457, and i know that it is a > > 7447, because it is written on the chip among other reasons. > > Well, the 744x chips are easy to tell from the 745x, because the former > have a smaller packages than the latter. The L3 cache interface takes > of the order of 100 pins you know....
Yeah. Cheaper to buy also. > > > But that's true there's no L3 cache on this one. > > > > Only difference trully. I think it would be nicer to report it as > > 7445/7457 or something such. > > A real geek would write this 74[45]7:-) Now is there a way to determine > this by attempting to read (or modify) l3cr? Not sure if this works. Friendly, Sven Luther
