Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.
What have you set voltage to in bios?
Do you have vcore on manual or auto,as some boards over compensate when in auto mode.
The G0 is the lower power model which is the one to get.