I am also looking at an i7 980x processor, Gigabyte GA-X58A-UD7 m/b (usb 3.0 & SATA rev 3), 8gb ddr3 2200 mhz ram.
Thanks for any input!
If you mean what is found in 2012 and later, I cannot answer directly as I am still on 2011. I would assume so though.
I should be moving to 2013 after SP1 is released.
From what I have seen, it seems that the GeForce cards are a better option for Inventor these days. I have been directing customers towards them over Quadro and FireGL cards.
I almost always use the driver from the card manufacturers site over the drivers that Autodesk lists on their website as well.