Ive managed to find 3D-NAND 850 EVO and PRO results... in a nutshell 3D NAND doubles endurance compared to 2D PLANAR (a far cry from Samsungs ten times figure)
basically:
a
TLC 3D NAND drive (EVO) is good for around 2,000 P/E cycles (a 250GB drive should last on average 23 years writing at 20GB per day)
an
MLC 3D NAND drive (PRO) is good for around 6,000 P/E cycles (a 250GB drive should last on average 70 years at 20GB writes per day)
Lifespan with 20GiB of Host Writes per Day with 1.5x Write Amplificationto roughly work out the life span for an EVO drive, simply DOUBLE the total capacity and change it from GB to TB and thats its ballpark lifespan
to roughly work out the life span for a PRO drive, simply times the total capacity by 6 and change it from GB to TB and thats its ballpark lifespan
over the past 2 years my AVERAGE use has been 45.45GB a day... but ive been using HIBERNATE havent I & streaming through the C:\Drive...even when i was sleeping the PC it still writes to the HIBS file (8Gb) for Hybrid Sleep - so ive disabled it, got Opera Portable installed in and running from a 1GB Ram Drive and my usage is now circa 7-15GB a day, some virus scanners such as Kaspersky like to dump a ton of writes when scanning too.. I only observed this in Kaspersky where near the end of its scan it started to dump over 10GB of writes in less than a minute so I cancelled it!
SSD LIFE is a good tool for monitoring your daily usage for a bit and grab your SMART statistics too...check the WEAR LEVELLING COUNT - the VALUE is the life left in percentage..so it starts at 100...mine after 33TB over 2 years is now 93% - the RAW VALUE is the total P/E cycles... mines 139, this means of the ballpark 2,000 for a TLC drive ive used 139 - this means on average, all the cells on the drive have been written too 139 times (ive filled the drive 139 times over)