green vs brown XP2500+ o/c

I've heard that the green one is a lot harder to o/c than the brown one. Is this true?

No, you don't mean brown/green color difference, you mean locked difference. There are processors of each color that are locked, but no green bartons that are unlocked. Look at the top of the chip. If you can see electrical traces below the surface, it is probably locked. If you can't make out any traces below the surface, and it is brown, your chip is guaranteed unlocked.

Thanks for your advice!
I was going through a local computer magazine and it dicussed about green and brown XP2500+'s overclockability. I wasn't sure if this magazine is just bsing