Well, it is absolutely amazing. Double the eye candy at twice the framerates! I am running my same old junker, celeron 1.7, 384mg ddr ram, gforce mx440 and it is spectacular. Averaging 17-20 fps everywhere!
Here is a direct comparison. My home airport, Boundary Bay (zbb) near Vancouver, BC. One of the bussiest little GA airports in Canada. In FS2002, they paid almost no attention. Well have a look now. Same time, place, weather and settings. And remember twice the framerates in fs2004. Chalk me up as a believer!!!
FS2002
FS2004