Methinks AJE has a rather nasty memory leak in so much as that it constantly crashes on my pc. With main settings set to normal it can happen in the very first turn and when I turn down memory to 10%, remove borders, lowest textures, load textures at start it sometimes can take up to 15 minutes. Crash however it will. Here is the latest error report from a game that crashed on the very first turn.
My own specs meanwhile are I5-2000k 3.30 ghz, 8gb ram, amd radeon hd6900 with windows 7 home premium. Drive defragged, drivers in order and playing new games like Borderlands 2 and Battlefield 3 with high settings without a hitch.