With volume retail availability scheduled for this October, Trident has a while to improve the performance of their XP4 part to meet their performance goals. The XP4 T3 is clocked 20% higher than the part we benchmarked today and with memory that's running 20 - 40% faster than the T2 we tested as well.
Currently the T2 is running at around 60% of the speed of a Ti 4200 (which itself is around 80% of the speed of a Ti 4600), so it is quite feasible that a XP4 T3 could deliver performance on par with the GeForce4 Ti 4200. As for the $79 XP4 T2, there's a lot of potential for that part to deliver performance on par with the Radeon 9000 Pro.
Basically we're at a "wait and see" point with Trident but there is the potential for the XP4 to deliver on all of their claims. The only problem that Trident may face is that by the time the XP4 T3 ships, a GeForce4 Ti 4200 should be priced at a very competitive level. As usual, only time will tell but Trident's current demonstration has removed some of our initial skepticism about the XP4.