Chances are the hyper threading helps, it does help in some games. As also evidenced by the benchmarks, clock speed also matters. That's also true of bf1, another multiplayer online game. If taking techspot's results yes the i7 got higher fps. People automatically say 'oh, hyper threading'. If looking at one i7 to another with a 1ghz clock speed difference came a 40fps difference as well. Hyper threading doesn't explain that since all the i7's are hyper threaded.
It's also difficult to get solid benchmark results for a game that's solely online multiplayer. People will say that predetermined scenarios like a built in 'benchmark' included in some games is unrealistic. It is, but it's also repeatable which is what benchmarks rely on to...