The german website 3DCenter.de has tested & compared the Anti-Aliasing quality between a Geforce 4 Ti and the brand new Matrox Parhelia. They have tested it with the following settings: GForce 4 TI = 4x Anti Aliasing Matrox Parhelia = 16x Anti-Aliasing It looks like that the Matrox card has some bad problems with the Anti-Aliasing. The main article is in german but you will see the difference in the pictures. Move your mouse over the pictures and you will see it. The first picture shows the GF4 Ti and the 2nd after mouse over the Matrox card. Read the article over here.
Download the testtool over here.