Hi, After severely hours researching ive come to the conclusion that Nvidia's graphics cards always come out on top compared to ATI/amd's graphics card i was going to opt for crossfire but the more i researched the more i noticed a pattern emerge, Nvidia Sli always topple ATI crossfire and yet i still dont understand why they use gimmicks for graphics cards with the phrases "crossfire ready" or "Sli ready" i thought all you had to do was buy 2 identical cards (making sure you have enough room)and slot them into your pci slot or do you have to have special connectors?