Speed ain't the issue, more write cycles are what is needed.
In server applications, without optimising for flash a drive lasts months. Slightly longer once optimised for flash.
Korean flash foundry king Samsung has announced the entry of 3-bit (TLC) flash in its V-NAND product line at the Flash Memory Summit. The product has 32 layers of TLC NAND, TLC being triple-level cell as opposed to the bulk of today’s business NAND products which use MLC or 2-level cell with 2 bits per cell. TLC NAND is both …
AnandTech had a review a while ago. From the review, it was pretty impressive all the way round:
http://www.anandtech.com/show/8216/samsung-ssd-850-pro-128gb-256gb-1tb-review-enter-the-3d-era
http://www.anandtech.com/show/8239/update-on-samsung-850-pro-endurance-vnand-die-size
They go into the technology pretty deeply.