That card is a pci express card, so it will fit in newer dells, but not the older ones which use AGP. THat card is crap though. 64mb? No. Get a nice 256mb Geforce FX 6600 with 128mb or 256mb ram. You will be much happier. they make them in both types, you need to figure out which one you need from the Dell computer model you own, which should be on the front of the CPU box.