AMD’s 4000 series has been exceptional in that not only has it exceeded NVIDIA at the high end while keeping the price down, but the budget offerings going all the way down to <$100 are good performers for the money as well. The new HD 4830 slots right in between the 46XX series ($70-80) and the 4850 (~$170). At around $130 or less, the Radeon HD 4830 provides DirectX 10.1 support and pretty decent performance. There’s a good review over at Hot Hardware with more info, but it’s pretty much what you expect. Support for everything you need and every dollar’s worth of performance but not more.

The graphics card market is stuffed to the gills right now and you can find competition and clear choices practically at every $10 interval. If you’re looking to upgrade, just set your own price, be it $100 or $500, and seek out the best deal for that money.
[image credit: Hot Hardware]