djkny said:Bogus rumor. Nothing new until 2005.
I was looking up info on this 7448 chip and found this... Is Mac OS Rumors a reliable site? Anyway's this shows that another site to somewhat confirm the speed of the 1.6Ghz processor chip and it being 7448 (whatever benefits that bring).
"Mac OS Rumors: Freescale PowerPC G4s, new ATi GPUs demoed for Apple"
September 21, 2004
It's been a big week for Apple, according to sources.
Both Freescale Semiconductor (formerly the bulk of Motorola's Semiconductor Sector, now spun off into an independent entity) and ATi visited Cupertino this week to demonstrate their latest technologies, soon to ship in new Macs...
...As for Freescale, they demonstrated two G4-class CPUs that are nearly ready for Apple's use in iBooks and eMacs -- the 1.6GHz PowerPC 7447B which is optimal for desktop (eMac) use, and the PowerPC 7448 which ships initially at up to 1.6GHz, is optimized for laptop (iBook) use through a series of revisions to the PPC 7447 core. Performance lost to the changes is made up for by a 1MB on-chip L2 cache.
EDIT: also found this...
AppleInsider: Freescale 7448
...claims that the 7448 is 90nm w/ 1MB on-die L2 cache