PNY Optima 4 GB (1x4GB DDR3-1066)

The PNY Optima 4 GB comes as a single module with 4GB of DDR3 on board. It is specced for 1066 MT/s with a CAS latency of 7, working out to a true latency of about 13.1ns. Operating voltage sits at 1.35V. 4GB gives you enough headroom for esports and everyday use; past 3600 MT/s, extra frequency brings diminishing returns.

PlanMyPC's builder flags compatibility problems automatically and tracks the latest memory kit deals from multiple stores. Support and warranty service run through PNY, with terms that vary by region. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build.