Batman Arkham Asylum
Although it is considered to be a game that works best when paired up with Geforce cards, AMD's Radeon cards are quite capable of delivering high framerate as well. The situation with HD 5830 is quite similar to the previous benchmarks, and despite the fact that it is slower than the HD 5850 card, it still manages to squeeze out playable framerate even at 2560x1600 resolution with 4xAA.
Left 4 Dead
In Left 4 Dead game, the HD 5830 manages to sneak really close to the Nvidia's GTX 275 and the gap is only 10FPS when 4xAA and 8xAF comes into game, but when those are disabled, AMD's HD 5830 even gives a higher framerate.