TBH there realy isnt a good agp card for that resolution. A 3850 will be sweating hardcore at that res on min details. That resolution is pretty much top for a 3870 or an 8800gt512.
i disagree. i have a 7600GT agp (the DDR2 version too) and i can play all my games at 1680x1050 no problem. i can even manage about ~20fps in crysis on min details at that resolution. so saying that a 3850 will be "sweating hardcore" is not true.