I recently bought the Nvidia 5500 for my computer but was thinking about taking it back and getting the 5700LE. I only have PCI slots on my motherboard so I'm limited on what I can get. Is the 5700LE actually better than the 5500 or should I go for something else altogether? Also, the 5500 is PNY and the 5700LE is Jaton, does this make a difference?