it kind of shows wrong values for me.
e.g. i'm playing at 120fps, and it shows 136-146fps, even though the steam fps overlay says it's running at a steady 120fps (limited by the ingame limiter).
am i doing sth wrong?
I also have exactly the same problem. Freesync 120Hz monitor with AMD 6700XT. Games are running at a solid 120fps and this is also reported at 120fps by Radeon software, however HWInfo64 framerate reading goes up and down anywhere from 100 to 140fps.