Toms Hardware reviewed the ViewSonic Elite XG320U 32-inch 4K Gaming Monitor
A quote from the article:
The ViewSonic Elite XG320U is the first Ultra HD monitor to include overclock up to 150 Hz. It also delivers a massive color gamut, HDR and Adaptive-Sync in a 32-inch IPS panel with premium build quality.ViewSonic Elite XG320U 32-inch 4K Gaming Monitor Review