So, I am looking at memory and I see different sticks from G-Skill. Ares, Ripjaws, and Sniper. All the specs are exactly the same, except for the timing. the ares and the Sniper are 9-9-9-24 and the Ripjaws are just 9-9-9. The price is also different. The Ripjaws being $5 more. Is there a difference between these sticks?