Kingston didn't introduce anything ultranew in the HyperX DDR3 SO-DIMM, but tuned it nicely and achieved a very good result which is mainly ultra-low latencies. Almost any DDR tuning referring to latency and speed brings in more temperature and so does Kingston HyperX. Bytheway the speed of HyperX is 1066 MHz, probably not shocking, but consider this: in Kingston they managed to pre-program their DDR3 SO-DIMM with 5 – 5 – 5 – 15 memory timngs. For example Mushkin 1066 MHz has 7 – 7 – 7 -20 timings and G.Skill has 9 – 9 – 9 – 24 but it is of 1333 MHz. back to DDR temp: HyperX cooling metal heat-spreaders are little bit different now and the question is how good they are in a tight space of a laptop. Kingston made the HyperX memory larger than most of opponents have on their's– 4 GB (2 x 2 GB) and the required voltage is 1.5 V.
For those of you, who got interested in Kingston HyperX DDR3 SO-DIMM, be ready to face a 228 USD price tag. This is a lot more than Mushkin and G.Skill, both of them cost 119.99 USD and Mushkin 2 x 1 GB is only 76.99, but rumors say there are way cheaper HyperXs on the web so search for product number KHX8500S3ULK2/4G.