X4 Ray Tracing - Optimal CPU

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Just built this:

Intel i7 3770K Ivy Bridge 3.5GHz easily OC’d to 4.0 GHz on stock air cooler
32 GB CORSAIR DOMINATOR GT DDR3 1866 MHz (PC3 15000) CMT32GX3M4X1866C9
EVGA 680GTX 1084Mhz GPU, 2GB DDR5 (6208 MHz Memory Clock Speed)
GIGABYTE GA-Z77X-UD5H LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX
Fractal Design Arc Silent Insulated Case
Storage: 240GB OCZ Agility III, (2) 10k Raptors RAID 0 (striped), 1TB WD SATA III, CD/DVD:none
Corsair HX850W PSU
(3) Noctua NF-F12 PWM fans
(1) Noctua NF-P14 FLX fan @ 750 rpm ultra low noise


58 sec. (@ 4.0 GHz)

Amazingly quiet. I have to put my ear to the case to hear it running.