Thanks for running the tests Crap.
From what I can see in those screen shots it looks like my greedy eyeballs are going to be with stuck the single monitor due to my quality over quantity obsession...
I was planning on buying a 3rd card in the not so distant future, but if I'm going to be limited by the VRAM I'm no longer seeing the point. :(
Hopefully EVGA's costumer support department has it In there hearts to allow me to do the StepUp to the 3GB models since I just bought the two cards in April.
Edit:
Just got off the phone with EVGA and because it's a non-reference card they are saying no...

Edit2:
StepUp was the reason I went with EVGA. lol Guess I've learned my lesson.
From looking on eBay the going rate for used GTX 580sc 1.5GB cards is $350-$375. So I'd be looking at about $500 (loss of $300) to upgrade to 2 3GB cards + down time and a another $600 for a 3rd card. In addition to upgrading my monitor setup... If I could afford to go with 3 30" panels I could justify the cost but going to 3 1080/1200 docent make sense dollar wise. Nor dose adding a 3rd 1.5GB card if I'm going to be limited by the frame buffer and have to lose the high AA settings by increasing my resolution...
I was going to ask you to run some tests @2560x1600 but I already know the answer and it's no since metro uses 1330MB with every thing set to max @1920x1080 except for AA being set to AAA instead of 4xMSAA.
I have a source that I can borrow 3x1920x1080 monitors from so I'll have to do some personal testing to see if I can stand the lower AA settings before I finalize my decision on weather or not to go tri-sli/multi-monitor.
Thanks again for running the tests and and your very insightful thread. I know how important and over looked VRAM is. Thank you.
PS: I'm still amazed after reading this thread that 3GB is not the standard amount of VRAM on these cards...
PPS: Sorry for ranting in your thread...
post edited by chutesandladders - 2011/05/13 03:05:37