Originally posted by: Walternowi
According to this
http://www.amdcompare.com/us-en/desktop...x?opn=ADA3200DAA4BP&&opn=ADA3200DKA4CG
BP is an E3 stepping, and CG is an E4 stepping. E3 chips have been demonstrated as good overclockers, whereas E4 is relatively poor in terms of overclockability.