They will all end in the number one, to differentiate them from the current 90nm processors.
The chips are the 661 (3.6GHz), the 651 (3.4GHz), the 640 (3.2GHz) and the 631 (3GHz). All have 2MB of cache, 800MHz front side buses, and include a fan.
The prices will be around the same as the 90 nanometre chips. This shows that Intel is, in chip fab jargon, ramping up the 65 nanometre process. But, as we've already pointed out in previous stories, the 6XX family is not long for this world anyway, as Mr Conroe and his next generation are just round the corner anyway.