Here’s the thing regarding those benches, while the GTX470 is certainly the faster part, those number show that you’re going to get no real life playability difference.
Crysis Warhead: 25.7 FPS vs. 22.8 FPS.. who cares? Do you want to play that game with either of those cards at that res with those settings?
Crysis Warhead Min FPS: 17.6 FPS vs. 12.1 FPS Certainly an advantage to Nvidia, but one is almost a slide show and the other is somewhat less of a slide show.
You’re not going to have a very different playing experience on either one.
BattleForge: I’ll give Nvidia an edge here, 32.1 FPS vs. 27 FPS. Neither one is ideal, but in that range any extra FPS you can get will probably be noticed.
HAWX: 75 FPS vs. 67 FPS. Both are above 60 FPS, so no real life difference.
L4D: The 5850 is faster at 88.1 FPS vs. 80.1 FPS, but again no real difference, both are well above 60 FPS.
Battlefield Bad Company 2 Chase: The 5850 is faster again at 35.3 FPS vs. 34.7 FPS. In the mid 30’s any faster you can get will help, though I think it’d be pretty difficult to notice a difference between these two cards with less than 1 FPS separating them.
Battlefield Bad Company 2 Waterfall: Another ‘who cares?’ situation. The 470 is faster at 17.7 FPS vs. 12.3 FPS. Both are way to slow to matter.
S.T.A.L.K.E.R.: In this one I’d say the 470 is better, though too slow to really consider for this game at this resolution. The 470 is probably playable, the 5850 is maybe playable but I wouldn’t want to. Both are too slow to make someone who is buying a 30” monitor to game on happy. 24.4 FPS for the 470 vs. 20.7 FPS for the 5850.
Dirt2: I’d say you have two even cards here, that’s under a 1.5% difference, probably within the margin of error. 45 FPS for the 470, and 44.4 FPS for the 5850.
Mass Effect 2: Again, not a whole lot of difference, though slightly better performance from the 470. 41 FPS vs. 38.9 FPS, barely more than 2 FPS difference. Both look playable, though the 470 is a little faster.
Wolfenstein: The 5850 is faster at 54.9 FPS vs. 51.9 FPS. While neither gets to the magical 60 FPS number, both would be quite playable and the 5850 even a little faster.
So while the 470 is the faster part, we're not talking about much of a real world difference here. I agree that the 5850 is over priced right now given the 470's current pricing. Even though it doesn't matter much to you or myself (assuming it's within reason) some people like the lower power draw and lower heat output of the 5850. Some people (again, not me) need CUDA for some apps they use, so they could care less if the 5850 was cheaper. Different people buy for different reasons, but going strictly by performance I agree that the 5850 should be priced closer to $240-$250. So for whatever it's worth, though the 470 offers the better performance of the two, I'd say you'd be hard pressed to see a real difference between the two.