well at 1600 x 1200 x 32 , with the A.I Traffic, there like 500.000 flighter world wide per day, you've got live stream weather from the internet, every airport has thier own sceduals, there is alot more to it, it's actually not a game it's a Simulation program, it really has it's own sector. I use AGP textureing yes a fact FalconFly

I really tested it with 1 OpteronDP 244 and with 2 it's lots faster, my FS2004 folder is 4.75 GB big, they say you can make it as big as you want really, there is alot going on that simulation world, air traffic control, docking and boarding situations things like this also make it alittle hazzardous.