77 months ago
Is it worth it for the speed
Read speeds they are pretty much the same. However, the 840 Pro has around 520 mb/s write speeds while the 840 has around 130 mb/s. If you are downloading a lot, i recommend you take the 840 pro.
I have the Samsung 840 Pro Series 256GB and really love it. I would say go with the Pro 128gb and just get something like 2 or 3TB drive for storage.
The samsung 840 pro uses MLC flash, and the 840 uses cheaper TLC flash. (2 bits per cell vs. 3 bits per cell). The 840 is really just fine, but the 840 pro is a whole lot faster and has a better warranty.