More technical details can be found in the following table.

Matrox changed their production from 0.25 µm to 0.18 µm for the G450 without increasing the clock speed. That's why all G450 cards can live without fans. It's quite obvious that Matrox is trying to maximize the yield. Both the unchanged clock speed and the smaller chip size contribute to lower costs.

Looking at the price for a 32 MB card, the Millennium G450 can only be characterized as competitive if the Dual Head Feature comes onto the scene. If you don't care about that, the new Matrox card is either too slow or far too expensive - a GeForce 2 MX board would then be the better choice.

If you are in the market for a dual monitor solution, I would think about a 16 MB version as well. If you don't need 3D at all, you can also live with the smaller video memory size. 16 MB are still enough to run two monitors e.g. at 1024x768x32 and ergonomic refresh rates. The prices for 16 MB bulk versions should level off at approximately $120.