Okay - I was a little premature. Now getting a reading (which is progress from just seeing 0%), and under load it nearly matches GPU-Z
On idle though, it bounces around all over the place - I've seen max readings of up to 38.4%, when doing nothing and its regularly reading 10-20%
Attached is a tiny screenshot of the difference, sorry I haven't formatted these, but both graphs are GPU utilization/load (y axis run 0-100%), x axis is time over 30s
Top graph is from GPU-Z GPU Load sensor, bottom is from HWiNFO GPU Utilization sensor over same time period (when idle)
On idle though, it bounces around all over the place - I've seen max readings of up to 38.4%, when doing nothing and its regularly reading 10-20%
Attached is a tiny screenshot of the difference, sorry I haven't formatted these, but both graphs are GPU utilization/load (y axis run 0-100%), x axis is time over 30s
Top graph is from GPU-Z GPU Load sensor, bottom is from HWiNFO GPU Utilization sensor over same time period (when idle)