Here's the deal. I have a Dell Dimension E310 that is now running at 3.4 Ghz P4. I will be upgrading the ram to 4GB, and have purchased the startech pci-e x1 to pci-e x16 adapter as my machine has only std pci, and one pci-ex1 slots. I am pretty sure that because the adapter "raises" the slot the card will go into that I will need a low profiler. Also, I know that the pci-ex16 card I put in there will not be running nearly at its full potential. That being said, what would be the optimal pci-ex16 card,(low profile), that I can slap in there and get somewhat decent performance with? Will I have any benefit with GDDR3, or GDDR5 memory with my super old get-up? Thanks.