The official rating of these modules is DDR3-1600 at 9-9-9-27, but with such oversized heatsinks, we're guessing they can go much further. Users of large CPU heatsinks might want to steer clear of these modules.

Like most other enthusiast modules, these also support Intel's XMP (Extreme Memory Profiles).

Test Setup
Processor Intel Core i7-970
Motherboard Asus Rampage III Gene
Graphics Card AMD Radeon HD 6870
Power Supply Cooler Master Silent Pro 1000W
Operating System Microsoft Windows 7 Ultimate 64-bit SP1
As the base clock has to be increased to reach specific memory frequencies, the CPU speed and QPI cannot be kept constant. Hence, on the next page, we note the base clock and CPU multiplier after the memory timings and speeds.
We will be using three benchmarks to compare the modules at stock and overclocked speeds:
  1. Super Pi Mod v1.5 – 32M
  2. wPrime v2.04 – 32M and 1024M
  3. SiSoftware Sandra Memory