I really dont think so, 64bit PCI is server only.
Both these cards are crap and overpriced, tigerdirect.ca gave me a 5200 for 25 $...
the 32 bit is 64 MB (DDR SDRAM)
the 64 bit is 128MB (DDR SDRAM)
and no the 64bit is not server only
But i was wrong the one hes linked to is only 32 bit