Also, I have yet to see a publication benchmark these cpus against each other in R3E RF2 AC or even ACC. It will only happen if some of us happens to own both.
It doesn't really matter which sim you choose, all of them are limited by the performance of 2 threads at maximum, so it's always single-threaded performance that gets you more fps. ACC does use a few more threads on top of that to a decent amount, but should not be limited by those even on a 6-core, non-HT i5. The most interesting comparison would be PCars 2, since it normally uses around 3 threads decently (plus, like ACC, a few more lightly), but for that reason, it is also a lot more GPU-bound than the other titles.
No, if you have 10% per core, then even overall it is 10%. Stop misleading people with unlogical math. You have two groups of 8 people, you sent them to gather supplies. One group returns after 10minuts, the other group returns after 11minutes (10%). By your logic you got the supplies from the second group 8 minutes later, because each person of that group took 10% more to return....