The reference card is quadro fx 580. I am upgrading from Radeon x1950 pro to one of the following quadro cards: fx 380 or fx 570. I need you to classify them by "power" (how well will they perform in 3ds Max and Adobe cs5). Also how much improvement can I expect from each if I buy it? And of course how much more powerful is the 580 if compared to the other two? Another thing, the link ( http://www.ipspty.com.au/files/pny.pdf ) shows that the 570 is much more powerful, although it's memory flow is almost two times slower, that I can not understand, so i'm asking someone to explain it to me. Sorry for my bat english, not my mother tongue.