Here is our test kit:

The kit looks great and comes with the OCZ XTC heat spreaders. When I started running the modules I found that they can run far tighter timings than 5-6-6-15 and was able to get them all the way up to 570MHz (1.14GHz or 1140MHz) with 4-4-4-12 timings. Here is a CPU-Z 1.36 screen shot of them at 570MHz.

At 2.4V they were not 100% stable at the settings but damn close.

I ended up having to reduce the frequency to PC2-8888 with 4-4-4-12 2T with 2.55Volts. The memory is 100% stable at these speeds and was able to pass five full loops with the RST Pro2 memory tester at these settings. The memory runs $449.99 which isn't bad considering Corsair's PC2-8888C4 Dominator modules feature an MSRP $599.