» Wed Mar 09, 2011 8:56 am
The so-called Geforce 6 "Series" is / was in fact FOUR separate series, the 6200, 6500, 6600, and 6800. The slowest that will handle this game in a Medium Resolution without jerkiness would be the 6600 GT, save for the fact it was only offered in 128 MB versions, neither the 6200 nor the 6500 had the required core speed, RAM speed, or memory bandwidth. There were six different 6800s in that series, four of which were good, and two of which were crap (6800 SE, 6800 XT). There was some variation between AGP and PCIe v ersions, so that in one case, the GS was slower than the Vanilla card, and the reverse was for the other (but I forget now which was which, and the last new ones, 6800s, were sold off 5-6 years ago now).
The 8600 wasn't a "bad" card when new, although like all of the 8n00s, when it was new, the fan control firmware was defective, and that was not corrected for any 8n00s other than the 8800s. Time hasn't been kind to the 8600, particularly not when we look at what AMD has released since back then, for the same class (Mainline Gaming class).
However, as I did for the X1600 Pro versus the HD 5570, here is the 6800 GS vs the 8600. The mobile versions of the 8600 were almost uniformly worse off by anywhere from 15 to 30% of lost performance, and GPU Review has very few mobile cards' specifications in its database:
http://www.gpureview.com/show_cards.php?card1=354&card2=534