"NVIDIA IS READY with its next mainstream chip as it has some gaps to fill this time round. The good thing is that none of the graphic companies are shipping any decent quantities of PCI Express cards and we received information from both Nvidia and ATI partners that some samples should come this week or next."

from what i understand, the nv 45 is the nv40 w/ a PCI bridge. in other words, i see this as being the same chip , all around w/ modifications.