I am using process explorer for monitoring cpu usage in 'tray' but would like to have same indicator to check if my gpu is idle or heavy working - as a try icon

I got gpu-z it has gpu temperature info, and 'gpu load' info, but this is just not to much handy dialog window, i would need something that will use just pixels in try as an indicator (and also should be a small to download) Does somebody know such thing?

tnx