The DigiTimes reports on possible Intel Yonah pricing at its launch in the first quarter of 2006:
X50 dual-core 2.16 GHz: US$637
X40 dual-core 2.00 GHz: US$423
X30 dual-core 1.83 GHz: US$294
X20 dual-core 1.66 GHz: US$241
Single-core 1.66 GHz: US$209
It's heartening to see (again) the specs of these chips, as they are likely to be used in future Mac laptops. The dual-core Yonah, with its 2 MB L2 cache and 667 MHz bus, should be competitive overall with a dual-core G5 970MP at a similar ballpark clockspeed. In other words, a Pentium M Yonah 17" PowerBook in 2006 could be as fast as one of the slower dual G5 Power Macs of today in many tasks (Rosetta translation notwithstanding). Impressive.
The single-core 1.66 GHz should also be quite a nice chip, likely sporting 1 MB L2 cache. It's significantly faster than the fastest current PowerBook G4 CPU, but is aimed at the budget market, perfect for the iBook. If Apple does release an iBook with this Celeron M Yonah 1.66 GHz, I may just update my current PowerBook Titanium 1.0 GHz to an iBook instead of a dual-core PowerBook.