What is your budget? Here is what CAD users at
Cadalyst found (higher is better):
3dLabs Wildcat II 5110: Best performance of any card currently available at $2000,
ATI Fire GL2: 52.6 at $1200,
ELSA GLoria III: 38.4 at $1200,
Oxygen GVX420: 29.1 at $2500,
Oxygen GVX210: 28.2 at $2000 (old price),
3dLabs Wildcat 4110: 26.7 at $2200 (old price),
ELSA GLoria II: 24.9 at $700 (old price),
ATI Fire GL1: 23.8 at $700 (old price),
E&S Tornado 3000: 19.2 at $1300 (old price),
ATI Radeon32: 17.9 at $279,
Matrox G400: 15.6 at $210 (old price).
Ok, some of the prices are out of date, but this should help you with your choice. The ATI Fire GL2 will render over 3 times as fast as the Martox, but you need to fork over $1000 more. If you are paying employees $50000/year, $1000 is one week of work. If you feel a card that is 3 times as fast will save you more than one week of work, then it is actullay cheaper to buy the better card.