depends on what you want to do with it. I wouldnt say its a great Oc'er just because of its FSB speed. It has potential since it has a 9.5 multi, but it also appears as if you will need high voltage to achieve xtreme clocks. so this would obviously require extreme cooling maybe some ln2 or cascade.

I would imagine in almost all cases the 8400 will give you better overclock. from the above article they hit 3.6ghz (unstable though) at 1.55v. At 1.55v my e8400 comes close to hitting 4.8Ghz. Just my 2 cents.