Ran a few more tests, without firefox on in the background (doh!).

I get 5 minutes 57 seconds.  Same with full raytracing on.

With the hex core, I get 8 colored render blocks working, then another 1 through 4 for the full 12 threads.

Water cooled and 128 GB Solid State C: drive, twin 1TB Sata 6 program and data drives.

 

Lotus 123 ~ S-Render ~ OS/2 WARP ~ IBM 8088 / 4.77 Mhz ~ Hercules Ultima graphics, Hitachi 10 MB HDD, 64K RAM, 12 in diagonal CRT Monitor (16 colors / 60 Hz refresh rate), 240 Watt PS, Dual 1.44 MB Floppies, 2 button mouse input device.  Beige horizontal case.  I don't display my unit.