T93,
Yes, the figures vary between variants. Best figures I can find (2012 DOT&E report) give the following for sustained G:
F-35A - 4.6
F-35B - 4.5
F-35C - 5
Note that the F-35C figure may be achieved at a lower speed than for the B and the A. (My error on sustained g in earlier post - sincere apologies).
KenV, I'd be a little surprised if the Advanced Super Hornet has more processing power (installed and operating) than the F-35. I was under the impression that the single company funded prototype focussed on the conformal tanks and weapons pod - I'm not aware that they've built a new avionics system as well. If you have any more info on this, please share it, I'd be really interested.
F-35 avionics architecture is quite radical and is designed to allow downstream upgrades in processors - but we will have to see how that pans out.
Best regards
Engines