Sequential Read Performance
The 2TB Patriot P200 needs a heavier workload to reach peak throughput performance. It's common for flash-based drives to need more work to reach the highest performance possible but the P200 requires more than others to surpass 500 MB/s. Another way to say this is the P200 is slower than most other SSDs with a one, two and four files read from the drive at the same time compared to the other drives in the charts today.
You will quickly notice a lack of diverse 2TB products in our charts today. We've brought in the leading 2TB options from our lab and they all feature DRAM for the flash translation layer. The P200 isn't the first 2TB DRAMless SATA SSD, but it's one of the first to become widely available.
Sequential Write Performance
With so much data to keep track of, large DRAMless SATA SSDs show inconsistent write performance. What we see is similar to the early planar (2D) TLC SSDs when it comes to the quality of service.
Sustained Sequential Write Performance
You can see the inconsistency in our sequential write across the entire user available space of the P200. To increase endurance, the P200 uses the data fold method. All incoming data must first pass through a SLC cache and then "fold" into the TLC. On large data writes, the fold and the still incoming data can butt heads for resources. That shows up as the larger dips or declines in performance as the fold takes place and the peaks show when ample cache is again ready to accept incoming data at a higher pace.