The Samsung 850 EVO 4TB SSD Review
by Billy Tallis on July 11, 2016 10:00 AM ESTAnandTech Storage Bench - Light
Our Light storage test has relatively more sequential accesses and lower queue depths than The Destroyer or the Heavy test, and it's by far the shortest test overall. It's based largely on applications that aren't highly dependent on storage performance, so this is a test more of application launch times and file load times. This test can be seen as the sum of all the little delays in daily usage, but with the idle times trimmed to 25ms it takes less than half an hour to run. Details of the Light test can be found here.
The 4TB 850 EVO is in a four-way tie for highest average data rate, and the Samsung drives in general score very well and quite close to the SATA interface limits.
The 4TB 850 EVO's average service time is not top notch, but is still reasonable for a high-end SATA drive.
Once again the latency of the 4TB isn't the best and isn't quite as good as the 1TB and 2TB counterparts, but it's still better than all the other TLC drives.
The power usage of the 4TB EVO is a bit worse than the 2TB model when fresh but is slightly better for a full drive, showing that this drive isn't worth having if you're barely going to use it.
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Lolimaster - Tuesday, July 12, 2016 - link
If you "work" with 4k raw videos you can afford the enterprise level SSD's with their multi petabyte endurance rating.mapesdhs - Wednesday, July 13, 2016 - link
Exactly. I know someone who's been testing 8K editing at a movie company, he was able to get over 8GB/sec from a good Enterprise PCIe device, with consistent performance being absolutely critical. He did try RAIDs of 850 Pros but they just couldn't handle it.AnnonymousCoward - Monday, July 11, 2016 - link
Look at the graph on this page...the Samsung showed bad sectors 4 times earlier than the others: http://techreport.com/review/27909/the-ssd-enduran...3 things matter to me with SSDs: cost, reliability, and UX performance.
DPUser - Monday, July 11, 2016 - link
That was 2-D TLC. The 850 uses much more robust 3-D NAND.AnnonymousCoward - Tuesday, July 12, 2016 - link
I guess we need updated data then :)ddriver - Monday, July 11, 2016 - link
Well, that's the 840 pro - old stuff... Also, it is possible that samsung have more strict criteria of when a sector becomes unreliable and requires reallocation.Palorim12 - Tuesday, July 12, 2016 - link
But in the end, didn't the 840 Pro outlast all the other drives?hojnikb - Monday, July 11, 2016 - link
That endurance rating is simply for segmentation purposes. In reality, drive should easily reach 4PB+ of writes, before crapping out.mdw9604 - Tuesday, July 12, 2016 - link
Can you explain? I'd like to buy one for a project I am working on, if this is true.mdw9604 - Tuesday, July 12, 2016 - link
I agree. I know its EVO...but write endurance on a drive that expensive is pretty bad.