ASUS vs. EVGA vs. MSI: Overclocking
Finally, the overclocking results. Unfortunately we did not have access to the ASUS DirectCU II Top card to do a proper overclocking test with that one. However we were able to do this with the standard DirectCU II model and as both feature an identical cooler, the potential is likely to be equal. We could get the ASUS card to 1105 MHz GPU (1170 MHz Boost) and 1802 MHz memory. With our Core i7 3960X running at 4.8 GHz that resulted in a 3DMark11 score of 9762 points.
The EVGA card managed to achieve identical settings: 1105 MHz GU and 1802 MHz memory. However, the Turbo of this card seems to be somewhat more agressively tuned, resulting in a final score of 10008 points for the EVGA card.
Then, MSI's contender. The N660Ti Power Edition 2GD5/OC achieved the highest clock frequencies: 1065 MHz GPU (1243 MHz Boost) and 1852 MHz for the memory. This resulted in combination with our overclocked Core i7 3960X in a 3DMark11 score of 10096points.