The G.Skill Pi Series DDR2 memory will immediately turn some heads, once you look at the required voltage to run the kit at 1066 MHz and beyond. There is no other kit out there that is being advertised with such an attribute at this speed, but you have to exercise some caution. Make sure you get a board with great memory compatibility, as not every board with the listed chip set will work. Maybe, try to avoid combo chip sets, which can handle both DDR2 and DDR3, as the ASUS P5KC did not manage to run the Pi Series kit properly.
Besides this, the memory is truly unique. Some may be a bit disappointed by the fact, that they won't manage to squeeze a lot more out of these with higher voltage, but G.Skill has chosen to sell these at the highest possible setting with a low voltage, instead of going for tightest CL with high voltage. The attributes of the Pi Series kit are only possible if the memory is independent of any change in voltage. While we have the PC2-8800 kit here, G.Skill has already announced the PC2-9600, which requires 2.1V to run. This coincides with our result of this kit, which manages the same setting at 2.0V.
No matter which G.Skill Pi Series kit you go for, you can be certain to get some great performing memory, with that magical 4 GB capacity, giving you the best of both worlds. G.Skill was lacking a true "Series" of memory with which it could identify itself, having a lot of different offerings simply defined by model numbers and different color heat spreaders, but the Pi Series changes all that and does a great job.