GamePC.com heeft een review gebouwd rondom de Guillemot Xentor 32 met TNT2 chip op 175/183Mhz, iets hoger geklokt dan de Ultra TNT2 kaarten van o.a. Diamond en Asus. Helaas valt er in de review geen info te vinden over het overklokken van de Xentor32. Wel hebben ze een vergelijking met de Creative 3DBlaster TNT2 Ultra (op 150/183Mhz):
After the Blaster TNT2 Ultra turned in some dissappointing numbers during its testing, Guillemot's Xentor32 shows the performance increase that the increased core speed brings. The jump in core speed from 150 to 175 MHz is about 17%. While that did not translate directly into benchmark increases (expect at the 3D Mark 99 at 1280x1024 with 32-bit color), the Xentor32 shows a marked improvement over its bretheren. A roughly 10% increase in performance at higher resolutions (1024x768 and higher) is obtained with the faster Xentor32. Using Brett "3-Fingers" Jacob's Crusher demo, we can see how the TNT2 Ultra is indeed CPU limited. Since all the benchmarks are relatively the same at the lower 800x600 resolution, its obvious that the card is no longer the limiting factor. The CPU now becomes a bottleneck.