Phenom II ddr III speed vs timings

[crazydiamond]

so lets say i was going to get the gd70 w/ a 955be and 8gb ram would you get:

1600mhz 7.6.6.24 1.9v kit
or
2000mhz 9.9.9.28 1.9v kit

they are both ocz kits, do you think they could run those tight timings at lower mhz? i know w/ ddr2 sometimes faster ram couldnt get the tight timings at lower speeds (think 1000mhz 5.5.5.15 kits that cant do 800mhz 4.4.4.12)

is ddr3 the same way? i was leaning toward the 2000mhz kit just figuring having the headroom cant hurt



edit to add: i wonder how your results would scale w/ more nb freq and even cpu