@njeneb:The AMD Phenom x64is a quad core and in fact TG2 creates four rendering threads pushing the usage to 100%... the processor is very fast, but it also creates much heat! when rendering I hear the fans speeding up and throwing a lot of hot air out of the case!
Personally I've never been an AMD fanboy, I always had Intel, in fact this wasn't on my computer, actually I borrowed a currently unused machine from my university lab for rendering!
If you want the raw power for a desktop system, I would go hands down for the new Intel Core i7, it beats AMD in every benchmark and embed some really advanced technologies like HyperThreading, TurboBoost and Demand-Based Switching:
http://www.pcauthority.com.au/Feature/135063,head-to-head--amd-phenom-ii-vs-intel-core-i7.aspx... and for comparing the new i7 against old Core 2 Duo models, take a look here:
http://ark.intel.com/Compare.aspx?ids=35605,35428,37151,@domdib:Yes, you're right, the GI Surface Details toggle was a mistake, because I actually had no close ground object, so it is useless... thanks!
PS:
the post with settings by "j_petrucci" is also mine, it was the old name of my account that is now deleted... sorry for the confusion!