Bjorn3D posted a review on the MSI HD7850 Power Edition Video Card

We recently covered the launch of Nvidia’s latest mid-range budget reference design GeForce GTX 660 graphics card, which turned out to be one of the best bang for the buck graphics cards available on the market as of Fall 2012. But of course, we were not quite satisfied with its overclocking potential and it’s cooler design. While the card was quiet, and did not exceed 74C at full load, it still could have a bit of improvement on the cooling and overclocking side. We’re sure manufacturers that decided to go with a non-reference designs will provide better cards for enthusiast gaming members and overclockers, but that will also come with a higher price tag of $239+.

  MSI HD7850 Power Edition Video Card Review