I have an amd xp2600, 1gb of pc2700 sdram, and Nvidia Geforce 7600gs 512mb AGP8x, my 3dm ark score was 1684, i got 715 SM2.0 Score, 626 HDR score, and 691 CPU score. Does that seem like a reasonable score for the system i listed? I'm also upgrading to a Intel E6400, w/1gb of DDR667 ram, would...