Hey everyone - we're aware of some issues introduced in Game Update 1.4 that may cause frame stuttering or performance problems (particularly on CrossFire or SLi setups). If you are experiencing these problems, please try disabling shadows. We are working on resolving these issues, but disabling shadows in the meantime may result in a performance increase. If you notice a performance increase after disabling shadows, please post to let us know (as some of you already have). We'll update you if we have any more information to share as we work on this issue. Thank you!
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)