As predicted, the Apple laptops got speedbumps. The Powerbooks are now at 1.33GHz and 1.5GHz. I did a little bit of searching for some stats. The information is sort of hard to to pin down (cribbed from sysctl, dev notes, various spec sheets), corrections welcome.
| PB12″ Rev A | PB12″ Rev B | PB12″ Rev C | |
|---|---|---|---|
| Model | MPC7455 | MPC7457 | MPC7447A |
| Cache | 64K/256K/- | 64K/512K/- | 64K/512K/- |
| Freq | 867MHz | 1GHz | 1.33GHz |
| Bus | 133MHz | 133MHz | 166MHz |
| Typical Power | 12.9W | 15.8W | 18.0W |
| Max Power | 17.5W | 22.0W | 25.0W |
(Note, the 7457 is available at 1.1V w/ 8.3W and 11.5W poerw dissipation; the 7447A also has 1.1V models, but the specs max out at 1.17GHz — can anyone confirm whether the Powerbooks (Rev B, C) are running at 1.1V or 1.3V?)
It’ll probably be a while before we see actual performance data (if any). I’d specifically like to see data crunching improvements (better CPU/RAM, but still hobbled by inadequate bus?) vs battery-life (real-life usage and stress tested). Note, that the 7447A has dynamic frequency adjustment capabilities.
Waiting for:
- lower power dissipation
- better battery-life
- modern system bus
- better screen