Hm, lots of crap to read.
Unpark your CPU-cores with this tool:
http://www.coderbag.com/programming-c/disable-cpu-core-parking-utility
My rig:
i5-3570k 3,4 GHz clocked @ 4,2 GHz
8 GB 1600 MHz Corsair memory
GIGABYTE GTX 970 Gaming G1 Graphicscard
- i5 with parked cores results in a framelock at 40fps, ingame framecap 30/60 does not apply
- i5 with unparked cores (use tool) results in a unlocked framerate (or locked when using VSync), ingame framecap 30/60 does apply
Right now I run GW2 at maxed out settings and FXAA in a resolution of 3360×2100 (DSR with 20% smoothness). Framerate is dancing betweeen 60fps (vsync) and 40fps.
What does coreparking do?
Windows puts cores to sleep to save energy. The cores are unparked if high demand is present. But the switching of the parking mode does not work pretty well sometimes…. So just disable the feature.