PS benefits more from CPU than VGA,so make sure you have a decent CPU(along with 3GB+ RAM) As for VGA,we don't have anything called nVIDIA HD 330, i think you meant Nvidia GT 330M,if so then yes its fine for PS.
There is an OEM GeForce GT 330 that is available for certain prebuilt systems. It is a desktop card.
The GeForce GT 330M is a mobile GPU for notebooks.
To activate CUDA acceleration the cuda_supported_cards.txt file for CS5 Premiere will need to be modified to support the GT 330. The graphics card must have at least 768 MB or more graphics memory.