Sorry, I meant that on my machine, specifically, 4.0.2 is inferior to the 3.5-X builds I used to use. I don't know what all the fixes are that have gone in at this point since last year, but something changed to make it much harder for me to find optimal settings.
OS: Windows 7 Pro x64
CPU: Intel i5 4670K @ 4.3GHz
GPU: Nvidia GTX 260 core 216
RAM: Corsair Vengeance 8GB @1600MHz, 9-9-9-16-1N
MOBO: ASRock Z87M OC Formula
PSU: Corsair HX650
CPU: Intel i5 4670K @ 4.3GHz
GPU: Nvidia GTX 260 core 216
RAM: Corsair Vengeance 8GB @1600MHz, 9-9-9-16-1N
MOBO: ASRock Z87M OC Formula
PSU: Corsair HX650

