Best upgrade from Radeon 4850 for $200?

[jakobjkraft]

5770 is an upgrade for a 4850. I've done it and I'm happy with the performance.
It's only one step up I'll grant you, but it is quiet and cool unlike a 4870 or 4890.
This is a good chart to see how the cards stack up in a good number of games.
http://www.techpowerup.com/reviews/MSI/GeForce_GT_240/30.html
4850 = 155% of a GTS 240
5770 = 202% of a GTS 240

So that means the 5770 is about 30% faster than the 4850 at stock.
A 5850 = 290% of a GTS 240
So it's about 87% faster.

I think I can live with that