The executive summary is that the Parhelia will run Doom, but it is not performance competitive with Nvidia or ATI.

Driver issue remain, so it is not perfect yet, but I am confident that Matrox will resolve them.

The performance was really disappointing for the first 256 bit DDR card. I tried to set up a "poster child" case that would stress the memory subsystem above and beyond any driver or triangle level inefficiencies, but I was unable to get it to ever approach the performance of a GF4.

The basic hardware support is good, with fragment flexibility better than GF4 (but not as good as ATI 8500), but it just doesn't keep up in raw performance. With a die shrink, this chip could probably be a contender, but there are probably going to be other chips out by then that will completely eclipse this generation of products.