7447A/7448 debate
I see the debate is still raging about the lack of an upgrade to the 7448 CPU in the new PowerBooks. Some further research on Freescale's site raises a few more points:
1. The 7448 doesn't have a "buy from distributor" button on the following page, so maybe it isn't available yet:
http://www.freescale.com/webapp/sps/site/taxonomy.jsp?nodeId=0162468rH3bTdG8653
That would certainly stop Apple offering it in the new PowerBooks! They had to update them somehow - imagine what would have happened if they hadn't released new PowerBooks last week. I think some people would have exploded!
😀
2. According to the following page the 7448 tops out at 1.7GHz and the performance per MHz is the same as the 7447A:
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPC7448&nodeId=0162468rH3bTdG8653
1.67GHz to 1.7GHz is a lousy 30MHz speed increase, and I'm sure loads of people would have moaned just as much about that!
😀
The tiny clock speed increase, extra L2 cache, slightly faster FSB and minor AltiVec improvements offered by the 7448 would probably have yielded such a small performance improvement (a couple of percent?) that it wasn't worth Apple spending loads of R&D on it. Perhaps instead they chose to reduce the price.
3. Apple managed to improve the battery life without using the 7448.
What we need is a huge step-change in performance like the G5 offered over the G4 when it was first released, i.e. FSB running at 50% of CPU clock speed, advanced 64-bit architecture, Serial ATA, etc. We're only going to get that with the Intel PowerBooks because the G4 design is going nowhere.
Given the current PowerBook situation, if Apple has any sense (and I'm sure they have lots!) they'll release Intel versions of them before anything else. My money's on June 2006 with no further upgrades to the current PPC line in the mean time, because Apple will surely be devoting all their portable R&D efforts to the new IntelBooks (I really hope they don't call them that though!!).
Of course we don't know for certain if that'll happen, so the bottom line is: If you need a new PowerBook now, buy one now and enjoy it. If you don't, wait a few months and see what turns up.