What does timing on the ram and voltage mean for example i am looking at the difference between these 2 G. Skill rams
this ram has a timing of 9-9-9-24-2N and voltage is 1.5
http://www.newegg.com/Product/Produ...0231277&cm_re=g._skill-_-20-231-277-_-Product
and this rams timing is 7-8-7-24-2N and voltage is1.65
http://www.newegg.com/Product/Produ...0231303&cm_re=g._skill-_-20-231-303-_-Product
so which ram would be better
this ram has a timing of 9-9-9-24-2N and voltage is 1.5
http://www.newegg.com/Product/Produ...0231277&cm_re=g._skill-_-20-231-277-_-Product
and this rams timing is 7-8-7-24-2N and voltage is1.65
http://www.newegg.com/Product/Produ...0231303&cm_re=g._skill-_-20-231-303-_-Product
so which ram would be better