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.
Try GPU-Z to show default and current clocks. Also check that its running in PCI-16x. Its a big blow to 8800's if it runs in 8x or lower