PowerColor is as always never late to arrive at the party, they submitted a Radeon HD 6850 for a test here at Guru3D.com and as such we'd be more than happy to bring you a full review on one of their newest products today, the PCS+ version of the Radeon HD 6850 that comes pre-overclocked.
PowerColor clocks it at towards 820 MHz for you, and if you feel a little brave then apply some tweaks yourself as that will get you over 900 MHz quite easily. The memory as well, standard you'll need to work with a 4000 MHz (effective data rate) memory clock frequency PowerColor takes that to 4400 MHz on this product. And sure, there as well is some room left to fool around with tweaking wise.
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