It's been a while since we looked at Samsung's 2.5" 840 EVO drives. On launch day, we tested the 750GB and the 250GB. This went dark after that, until the mSATA drives arrived. With so many different capacity sizes available, we felt as if we only covered part of the story. Today, we're circling back and filling in one of the gaps with the 512GB class model.
If you didn't know already, the Samsung 840 EVO drives are selling like crazy. Depending on which report you read, Samsung has a large chunk of the consumer SSD market share. In some countries, one out of every two consumer SSDs sold is from Samsung. There is a good reason for that. Despite the initial fears, TLC flash (at least the TLC that Samsung is building), has endurance that is better than first expected.
The flash is low cost, and thus Samsung's TLC based drives are also low cost. The 500GB model we're looking at today is down to around $300, a magic price point for CPUs, motherboards, and other components like SSDs.
We covered Samsung's MEX controller, Turbo Write, and Rapid Mode cache in an introduction article last July. If you would like to learn more about the underlying technology, start here.
We're diving right into this review with a brief follow up on the technology on the next page.