I don't know anything about Age of Empires online, looking for info on it right now, but being an RTS it is probably taxing on the CPU. The 6850 is actually plenty to run any game right now, obviously some would be lower detail settings, but that Pentium D literally is incapable of running a number of new games, it is going to hold the 6850 back in almost anything.
i am just confused about this because my brother has the following cpu on his hp latop
Intel Core2 Duo T7400 @ 2.16GHz 1,247 NA
with a mobile intel 4 series express chipset family 797mb for graphics prolly really really horrible... and 2gb ram, and he cannot really run this game, it lags on lowest graphics settings... so i dont know if it is because of ram graphics, or cpu, or all.... i dunno.
if it is because of cpu that he cannot play game without lag, then that would mean that the computer i want to buy with the even worse cpu that i am talking about above would not work for this game, so why do u think he cannot play, is it because of cpu?