Understood lol, the OP referred to playing at 1440x900. So the OP will possibly have better frame rates as opposed to 1920x1080 in most games.
Even at 1440x900 it isn't very good
1440x900 is similar resolution to 1280x1024;
1400*900 = 1260000 pixels
1280*1024 = 1310720 pixels
Note, that benchmark was done running around New Tristram. The actual frames per second number will be lower in combat.