Your questions have already been answered so my reply is almost like beating a dead horse.....
For FSX GHz is King. 3.0 GHz seems to be the sweet spot. Faster is better. Slower...... Don't go slower than 3 GHz.
Since you aren't going to overclock and quad cores cost more than dual cores, get the fastest dual core you can afford. The E8600 should do the trick.
For FSX GHz is King. 3.0 GHz seems to be the sweet spot. Faster is better. Slower...... Don't go slower than 3 GHz.
Since you aren't going to overclock and quad cores cost more than dual cores, get the fastest dual core you can afford. The E8600 should do the trick.