Extreme Hardware heeft een review gepost van de Guillemot Maxi Gamer Xentor 32. Hier een stukje over de overklokbaarheid van deze op 175/183MHz draaiende Ultra TNT2:
Before starting the overclocking tests, I first had to determine what clock and memory speed the Xentor 32 would reliably run at. The card ships set at 175 MHz clock and 183 MHz memory, and after a lot of experimenting (and rebooting) I was able to get it running very stable at the 183/200 MHz setting. These speeds shouldn't be taken as indicative of all Xentor 32 cards out there, since anything from the grade of the TNT2 Ultra chip, to the speed and brand of SDRAM will have an effect on the overclocking results. All during the overclock testing, Guillemot's cooling fan and heat sink were able to keep the TNT2 Ultra chip relatively cool, and even when I got lock-ups at high speeds, I felt that the overall grade of the TNT2 Ultra chip, and not heat, was the ultimate determinant of overclocking success.