Sorry for the delay Meithan - I obtained that FSB using a gigabyte DS4.
Was advised by a friend that they o/c massively... and it seems its true. The DS3 is the same i believe in o/c ability.
Its got My e660 has a sonic tower on it and idels at 28-30 dep on room temp fluctuations. never goes above 41 on any stress test ive run... and for every day use never goes above 35 deg.
I think there is still a fair bit of head room to push it harder... but i dont really see the point. 3.3 Ghz on air is fast enough for me...