The extreme preset is what should always be used regardless of the card. It's not like it matters if it has low framerates; it's not like you're playing 3DMark. Using the extreme preset exclusively does the best job of factoring out the CPU, and gives a number you can always compare with other vantage scores. None of the confusion about one person benching one card with X, another with P, comparing scores, etc.. things would be a lot simpler if people just used extreme. 2800 is pretty good, seeing as there were rumors about the 4870 only scoring 2700-2800 on the extreme preset.