Bought a HD3850 few days ago to put in my ageing system (Sempron 2800+ @ 1.8ghz, 2GB DDR)
Replaced a 8600GT which played pro evo in medium fine at 1280x1024 with just lags on replays.
With this new card, it is unplayable! My screen res is 1280x1024.
Playing Pro Evo windowed at 1028x768 makes it runs too fast, but its not smooth, still quite jumpy. Same when fullscreened.
Running it at 1280x1024 windowed is the right speed, but it lags and randomly drops fps in normal gameplay. When fullscreened at 1280x1024 the game goes crazy. Takes about 15 seconds to respond to a button press. Quite annoying as this is the game that is played most on my pc.
COD4 and Battlefield 2 seem to run ok with lags just in the heaviest scenes.