announced its first DDR3 HyperX notebook SO-DIMM modules, the KHX8500S3ULK2/4G, which is a kit that consists of two 2GB modules. The modules come fitted with Kingston's blue HyperX heat spreaders, although we're not sure how much of a difference it'll make inside a notebook, as there won't be a lot of airflow around the memory modules.
The clock speed of the modules is 1,066MHz or PC8500, but what sets these modules apart is the low latency of 5-5-5-15 at 1.5V, which is far superior to any DDR3 SO-DIMMs on the market. However, you'll need a notebook which allows you to adjust the memory timing this low to be able to see any benefit from the lower latency, as well as the higher clock speed of the modules.
The MSRP for the kit is US$228 (€179/£155), which isn't exactly cheap, but with limited choice, these are the modules to go for if your notebook supports them and you're keen on trying to squeeze every bit of performance you possible can out of it.
You can find the press release here