Firstly a big thanks to all the positive feedback here - you guys make it worthwhile. :thumbsup:
Is it possible to add FSx or even Silent Hunter 4 into your benchmarking efforts?
Sorry, I don't have those games.
Does the GTS see any texture thrashing at those rezs/AA levels due to the difference in RAM (640/768)?
I don't believe so.
i am guessing if one runs at 16x12 or below, the GTS is the best bang-for-buck ... at higher resolutions, the GTX or Ultra is a "must", price be damned.
I would tend to agree with your assessment. If you stick to 1600x1200 with 4xAA (or lower) the GTS should be fine in most situations but if you want to go higher the more power the better, especially if you use the more exotic AA modes.
Finally, did you ever consider GTS sli - or didn't want to deal with noise/heat issues?
No, I cannot justify Crossfire/SLI on any level. Even if my motherboard supported SLI instead of picking up a second GTS it was far better for me to sell my existing GTS and put the money towards the Ultra. Even if a pair of GTSes are a bit faster than the Ultra I'd still much rather have a single card solution.
Did you every try OCing your GTS and testing it against the stock Ultra?
No (and I can't do it now because I've sold it) but even with overclocking I'd imagine the Ultra would still be far ahead. In particular its massive memory bandwith advantage is what's providing such astonishing 16xS performance.