I've tested in what I believe is the least intense environment in Battlefield 4, the testing range, the average FPS was 70-80, CPU temp peaked at 65 C, GPU temp peaked at 70 C (10 degrees below the target, 80 C).
OSD is acting up and won't load up on Battiefield 4 at the moment but I have looked around the temps with my 2nd screen, max CPU temp so far was 65 C, no thermal throttling.
I don't think that anything is downclocked, not certain however :\
I don't use 8x MSAA, I use the Ultra preset, it uses 4x MSAA.
I don't really like messing with the BIOS.
I do use the stock CPU cooler, I do plan to switch over to a liquid cooling system for the CPU sometime later.
As stated above it only peaked at 65 C.
I'm still trying to get OSD to work so I could throw a screenshot I guess.