just a quick update on patch performance from way(?)-under-spec land (1.5ghz powerbook 1gb/Radeon 9700 64mb).
I decided to up the game specs a bit. Large map, animations/effects on, and medium quality, everything else set low. Playing full-screen mode. Game started out pretty smooth, but has gotten slower. I only had some of the tutorial to judge speed pre-patch, but I'd guess at 1200AD on a large map is maybe still a smidge faster than pre-patch tutorial. It is still quite slow though, so that it takes a few seconds to scroll to the next unit. If you want speed and large maps and animation on a powerbook, I'm guessing you will be disappointed, but it plays well enough for my tastes (kept me up until 3am last night!)
Sounds (except for some unit/battle sounds?) still working reasonably well, although it seems like some are getting cut off, and maybe unrelated, but there may be a broken sound either when I scroll past a city or foriegn territory when the ambient music is playing. There's a quick, loud "bomp" sound in these instances. Wonder movies still playing well late into the game. I'm not sure what the battle animations are supposed to look like, but they always end with the loser getting thrown backwards so I guess they are working...
I had the game open from about 1pm to 3am without any crashes or major graphics problems...