That doesn't look like it was under load. If you look at the graphs, you'll see at the very right a little bump in temps coming in. If anything, it should show a drop in temps, as temps go from very high under load, to cooling down after the bench stops.

Also, you need to toggle each item in GPU-Z to show max.

So many people who post pics of GPU-Z don't seem to do it correctly, or do it in a misleading manor.