DCS does seem to prefer using my last CPU core, roughly the same as your 70-80%
I can't see the difference, for example...between having 4 cores at 20% or one core at 80%?
My 7950 is being used to its maximum, both in GPU load and memory usage, and it's a huge leap in performance compared to the old engine.
Back ontopic, I pre ordered a rift, can't wait :thumbup: Have to wait until May though.