By Andrew Kim posted Jan 02nd 2012
Today, laptop memory is relatively inexpensive. Prices have fallen since 1066Mhz was considered "high-end laptop memory", and now most laptops come with 1333MHz memory as standard. In the past, the vast majority of laptop memory upgrades were done by gamers and enthusiasts who were willing to shell out the extra premium, while "everyday" users held back. Now, everyone can enjoy the benefits of upgrading their SODIMMs without experiencing sticker shock. This blog will demonstrate how to upgrade your SODIMMs, followed by a representation of the performance differences between stock laptop memory and Corsair Vengeance™ laptop memory.
Lenovo TP T420 (Samsung) 1333MHz 4GB SODIMM