Memory Timings and Memory Bandwidth Explained
Gundeep Hora writes "We have just published our recent articles that explain system memory bandwidth and timings. These two are two of the most confused topics and our very own Aubrey Barrington has used his expertise to come up with in-depth yet simple articles that you easily follow. Our Memory Timings article can be found here AND our Memory Bandwidth article can be found here."
This article wasn't really all that great; older articles and memory roundups and anandtech.com and tomshardware.com have done a much better job of explaining CAS speeds and how they affect you.