Beyond 3D heeft een review in elkaar gedraaid van de TNT2 kaart van Gigabyte, de GA-660. Dit kaartje is een 'standaard' TNT2, die een hogere core speed heeft dan een normaal geklokte Ultra TNT, namelijk 156MHz. Toch blijft ie 100% stabiel:
I wanted to see how much heat this thing could really take, so I figured I'd really need to push the board and keep doing so for several hours. The best way to do this is with very intensive 3D rendering. So I thought I'd crank set all the rendering features to max (trilinear filtering, high quality rendering), set the resolution to 1280x1024 and loop 3D Mark 99 Max's demo mode for several hours. After letting it run, I returned to find everything running normally. This is a very good sign that Gigabyte was successful at stabilizing the TNT2 at such a high clock. On thing I did notice was that the heatsink found under the chip would get extremely hot. Not hot to the point where it couldn't be touched, but very close. I'd almost have liked to see a fan on that part as well, though this might have been a bit of overkill.