512GB Class Performance Testing
We pulled a number of low-cost NVMe SSDs into the charts today to compare to the Inland NVMe SSDs. In this section, we isolated the 512GB class models and paired the 256GB and 128GB drive in the following section.
Sequential Read Performance
Our wide mix of products for today's review comes out in our early synthetic testing. The 512GB Inland NVMe scores the lowest in this test across the queue depth (QD) range. The MyDigitalSSD SBX with older firmware performs much better in the critical low QD range in the read test.
Sequential Write Performance
Moving over to sequential writes the Inland scores nearly identical to the SBX and outperforms the Toshiba RC100 at QD1. As we scale the workload through queue depth, the Inland remains steady with right around 900 to 950 MB/s.
Sustained Sequential Write Performance
The firmware programming gives the Inland a large SLC cache for writing sequential data to the buffer. The performance doesn't fall off a cliff after just a few megabytes of data like some of the other products still shipping today with older controllers.
Random Read Performance
For most users, random performance is the most important metric from the four-corner tests. Having high random read performance at very low queue depths is what makes you PC feel fast. The best SATA SSDs, like the Samsung 860 EVO and Crucial MX500, deliver between 10,000 and 12,000 IOPS at QD1. Entry-level and mainstream SATA SSDs range between 5,000 and 7,000 IOPS. The 512GB Inland NVMe is right on the cusp of what we considered a premium SSD just a few years ago with nearly 10,000 random read IOPS at QD1. The performance is in line with the Samsung 850 Pro and SanDisk Extreme PRO SATA SSDs.
Random Write Performance
Large SLC buffers have largely minimized the importance of random write performance for most SSD shoppers. The buffers moved the performance so high under typical workloads that every drive is a relative winner.
70% Read Sequential Performance
Mastering mixed workloads often requires strong processing power to handle the incoming and outgoing data as well as the data management at the same time. Entry-level SSD market controllers usually use low core count processors, so this is often a weak area.
The 512GB Inland NVMe is superior to SATA SSDs in sequential mixed workloads. The drive is on the lower performance end compared to other NVMe SSDs though.
70% Read Random Performance
The same is true for mixed random performance. The Inland NVMe is faster than most if not all SATA SSDs but trails the more expensive popular NVMe products shipping today.
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