anyone know anything about pci physics cards for pc gaming?

Question

has anyone seen any comprehensive benchmarks on fps games for these cards? do they improve performance on 3d games? worth having?

Answer 1

Tom's Hardware seems to know a bit.
http://www.tomshardware.com/2006/07/19/is_ageias_physx_failing/page2.html

Do not expect significant frame rates improvement. Card's contribution is mainly in enhancing "effects physics".
http://www.tomshardware.com/2006/07/19/is_ageias_physx_failing/page5.html#could_physx_be_useless