If you're still hung about that discussion, then let me rephrase my whole stance on that matter. There's more to judging performance than whether a product has a specific part over the other (i.e. product A has dram, and product B does not). It is more important to objectively look at graphs and charts that are created through normalized tests to determine if the performance of the product is worth the asking price of the item. On a side note, I'm not trying to run people over, but it is too common of a sight to see people use marketing jargon and phrases instead of using objective data sets to base their opinions on or write in a matter of a neutral position and people take things way too personal when I challenge their statement. A simple clarification backed by credible/reputable information would have ended my doubts on the matter. My reason to why I think it's a beginner's guide is because it's not super technical and I would say doesn't touch/mention on the more indepth ideas, or even just provide other readings to go beyond what this guide covers. The word "beginner's" is not to describe a new person just starting to understand the topic, but more like the "start" of the topic of SSDs.