When I installed the Sapphire HD 7770 OC into my testbed and ran 3DMark 11, I found that there was only a few points difference between the score that Sapphire offered and what we saw out of the XFX HD 7770 Black Edition S Super Overclocked 1GB which we looked at the other day. Heading into GPU-Z I saw the reason the score was so close was because both cards where clocked extremely close to each other. We`ll cover the clocks in the next page when we look at the specifications of the card. Since it felt like a waste to just test the Sapphire card by itself when it`s score would be near identical to the XFX model, I decided to pull the XFX card back out and throw it alongside our Sapphire one and see what CrossFire performance was like."
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips