I am looking at buying some of the G.Skill memory at newegg. The cheaper one does 2.5-4-4-8 at ddr 550 and the other for $40 more does 2.5-3-3-7 at ddr550. I was wondering if second set or timings is a lot faster than the first one at that speed. I guess what I am saying is for $40 should I get the more expensive memory?