Hi Allison, this was one of the first things I tried, it did not eliminate the problem, reduced it... but did not bring it back to the performance I had before the patch - which was everything set on high, plus some tweaks in NVCPL and v-sync turned on for a smooth 60FPS.
Windows 8 Pro x64 (RTM - OS Was released to MSDN and OEM on 8/15/2012)
i7 980x OC'd @ 4.33Ghz
3x GTX680 OC'd @ 1.1Ghz (WHQL 306.23)
KHX 16GB DDR3 @ 1.6Ghz
3x OCZ Agility 3 (240GB, 2x 120GB, NO RAID)
I turned off all shadows and put all my setting from medium to very low, frame rates still terrible