I think there are only a few differences
The A7N8X comes with a Game port bracket and a 9-pin COM cable and the -X does not
Wow...i'm stumped on this. The only other thing is the A7N8X has Twinback memory configuration. Supposidly this does something good to performance (according to Nvidia's marketing). Anyone have any idea?
According to newegg, the A7N8X is $12 more. Interesting...
I'm just your average habitual smiler =D