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Samsung 860 Pro 1TB SATA III SSD Review

By: Jon Coulter | SSDs in Storage | Posted: Jan 23, 2018 3:00 pm
TweakTown Rating: 98%Manufacturer: Samsung

70/30 Mixed Workload Test (Sledgehammer)

 

Version and / or Patch Used: Iometer 2014

 

Heavy Workload Model

 

This test hammers a drive so hard we've dubbed it "Sledgehammer". Our 70/30 Mixed Workload test is designed to simulate a heavy-duty enthusiast/workstation steady-state environment. We feel that a mix of 70% read/30% write, full random 4K transfers best represents this type of user environment. Our test allows us to see the drive enter into and reach a steady state as the test progresses.

 

Phase one of the test preconditions the drive for 1 hour with 128K sequential writes at QD32. Phase two of the test runs a 70% read/30% write at QD32, full random 4K transfer workload on the drive for 1 hour. We log and chart (phase two) IOPS data at 5-second intervals for 1 hour (720 data points). 60 data points = 5 minutes.

 

samsung-860-pro-1tb-sata-iii-ssd-review_46

 

What we like about this test is that it reflects reality. Everything lines up, as it should. Consumer drives don't outperform Enterprise-Class SSDs that were designed for enterprise workloads. Consumer drives based on old technology are not outperforming modern Performance-Class SSDs, etc.

 

The 860 Pro doesn't outright win this test, but it does two things better than any of the drives in our test pool. The 860 Pro delivers the tightest, most consistent pattern we've ever seen from a SATA SSD. The 860 Pro is also trending upward at the highest rate we've seen to date. We are of the opinion that if we were to run this test for a longer period of time, the 860 Pro may surpass all of the SSDs on our chart when running in a steady-state.

 

 

 

Sustained Sequential Write

 

Version and / or Patch Used: Iometer 2014

 

Heavy Workload Model

 

We write to the drive for 1 hour with 128K sequential writes at QD32. We log and chart megabytes per second data at 5-second intervals for 1 hour (720 data points). 60 data points = 5 minutes.

 

samsung-860-pro-1tb-sata-iii-ssd-review_47

 

MLC flash always delivers consistency that cannot be matched by TLC flash. This testing proves that the 860 Pro will never slow down or be subject to variability when writing sequential data. The 2TB 850 Pro delivers 2 MB/s better performance, but we are confident that is due to its capacity advantage.

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