GeForceFX vs QuadroFX

From a developers standpoint, can someone enlighten me to the differences between the so-called “Desktop” and “Workstation” cards?

Can I expect the same performance known from the desktop card on the workstation card?
What additional features can I usually expect? ( Overlay buffers etc.)

See the article at http://www.nvidia.com/object/quadro_geforce.html

Thanks, that’s exactly what I was looking for.