Originally posted by Postal
1.43 GHz sounds a bit odd when you check the math: you'd only get to that number if the FSB was clocked at 168 MHz, which isn't entirely unfeasible but is also not 167 MHz either.
I'd heard a couple months back or so that the first 2003 PowerMacs might have a 200 MHz FSB on at least one of the higher-end models, which (if true) would make 1.5 GHz more likely for the top-end system.
Either way, I hope that these are the 'legendary' 0.13-micron G4s with the doubled L2 cache! G4s are very dependent on access to memory, so going to 512K could feel like a breath of fresh air. A proper DDR bus would be nice, but I'm a bit skeptical regarding that. Motorola is disturbingly well-known for dragging its heels.
That's probably because it won't be 1.43 GHz. Running on a 166.67 MHz memory bus, the multiplier/clock frequencies work out like this:
7.0: 1.166 GHz
7.5: 1.25 GHz
8.0: 1.33 GHz
8.5: 1.416 GHz
9.0: 1.5 GHz
Even if you carried out the 8.5 multiplier to 100 digits it wouldn't be enough to round it up to 1.43 GHz. So, take your pick for the next speed bump- 1.33, 1.416 (probably would be called 1.42), or 1.5.