OCC has published a new review on Corsair Dominator GT TW3X1600C6GT Memory

Overclocking the Dominator GT memory was tricky. I could get close to 2000MHz, however I had to really loosen the timings to the point that the bandwidth suffered a lot. It would not run anything stable at less than 9-9-9-22 timings and that was a big jump from the stock settings. So I took a different approach and left the timings at 6-6-6-18, pushing the reference clock up a little at a time until I could not boot and pass memtest86+ without any errors. I was at a wall at 215MHz above the reference clock even when I pushed the voltage of the Dominator GT set up a bit. When I ran some tests, it was stable and performed a lot better than when the timings were loosened with the higher speed. So for the overclocking tests, I will be running the Dominator GT set at 1720MHz with latencies of 6-6-6-18.

Corsair Dominator GT TW3X1600C6GT Memory Review