500GB Class Performance Testing
Sequential Read Performance
The 500GB KC2000 has a slow ramp up as we increase the queue depth in the sequential read test. The drive doesn't reach the same high peak performance as the ADATA SX8200 Pro with Micron flash. The drive delivers roughly similar performance to the HP EX920 with the previous generation SMI 8-channel controller.
Sequential Write Performance
In the sequential write test, the 500GB KC2000 gain trails the SX8200 Pro even though the Kingston drive has the hardware advantage of 12GB reserved in overprovisioning. The KC2000 does deliver superior performance over the EX920 in this test thanks to the improved data path on the SM2262EN.
Sustained Sequential Write Performance
The Toshiba 96L TLC flash has an advantage over the Micron flash in sustained write workloads. The Micron flash shows waves even in the SLC write area. The Toshiba flash is fairly steady in the SLC buffer area. When the drives move to native TLC speeds, the KC2000 with Toshiba memory is quite a bit faster.
Random Read Performance
The area we are most excited to see is the random read performance. This is what makes the SM2262EN SSDs so fast in applications and gaming. The 500GB KC2000 trails the SX8200 Pro by nearly 3,000 IOPS at QD1. The drive even trails the Crucial P1 with 4-bit per cell (QLC) memory in this test but only by a small margin.
This shows us that the massive low queue depth random read performance isn't just the controller but also the flash. The controller still plays a large part, with nearly 16,000 IOPS at QD1 the Kingston KC2000 is a very fast drive for consumer workloads.
Random Write Performance
The KC2000 delivers strong random write performance that matches the Samsung 970 EVO Plus step-for-step through our queue depth burst testing.
70% Read Sequential Performance
Historically, the SMI controllers don't give users strong sequential mixed workload performance. This is when you read and write data at the same time. There are a number of applications that use mixed workloads with video editing to multitasking at the top of the list. The Kingston KC2000 delivers just under 1,000 MB/s at QD2 but is slow to scale performance as we ramp up the demand on the drive.
70% Read Random Performance
Mixed random workloads are not a problem for the 500GB KC2000. The drive scales really well, as we press the drive through increased queue. The drive does still trail the SX8200 Pro.
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