Version 2.36.0 fixes the issue, but it wasn't released until weeks after we had our hands on the first Tiger Lake retail laptops. Be sure to update to the latest version or else the number of EUs and potentially fillrate speeds may not be reported correctly.
https://www.notebookcheck.net/Older-GPU-Z-versions-have-been-reporting-incorrect-Tiger-Lake-Iris-Xe-values.512472.0.html