This isn’t really the kind of card you would normally overclock, but we know that some people will try and squeeze a few extra frames from their system. We used Sapphire’s excellent TriXX software as Catalyst Control Center only allows for limited overclocking with this particular card.
Even though we wouldn't expect many users to overclock a low end card like the 6670, we were able to achieve an impressive overclock of 15% on the core and 16% on the memory. With improved coolers from partners, we can see the overclocking ability of the HD 6670 improving a little more.