A-Data has done a very good job of tailoring a 4 GB kit for the enthusiast on a budget with the Vitesta Extreme Edition 4 GB 800+ MHz CL4. The kit was able to scale as high as 1066MHz at CL5, however it needed a toasty 2.4V to manage it stably. This would only be advisable for short benchmarking runs or perhaps longer time periods with adequate aftermarket cooling supplied. One noticeable advantage is the ability to run the kit at its stock rated 800 MHz, yet with the tight timings of CL3, requiring a tolerable 2.2V. While the kit did not clock phenomenally, it simply cannot be beat in its price class by other 4 GB dual channel kits.