I wouldn't bother trying to get much of an overclock out of the AMD X2 chips. Although I'm definitely getting more than 10% from a 2.4GHz overclock to 3.2GHz on my Core2Duo. The 8800GTX hasn't hit the limit yet. As long as you've researched and aren't over-aggressive with overclocking based on other user's results, you can safely overclock most hardware. Going back to the original P2 days, I've never had anything break from overclocking. Just keep your eye on temperature and stability.. and use good judgement on when to stop pushing it.