The Silicon Power P34A80 SSD Review: Phison E12 With Newer Firmwareby Billy Tallis on February 28, 2019 10:00 AM EST
AnandTech Storage Bench - The Destroyer
The Destroyer is an extremely long test replicating the access patterns of very IO-intensive desktop usage. A detailed breakdown can be found in this article. Like real-world usage, the drives do get the occasional break that allows for some background garbage collection and flushing caches, but those idle times are limited to 25ms so that it doesn't take all week to run the test. These AnandTech Storage Bench (ATSB) tests do not involve running the actual applications that generated the workloads, so the scores are relatively insensitive to changes in CPU performance and RAM from our new testbed, but the jump to a newer version of Windows and the newer storage drivers can have an impact.
We quantify performance on this test by reporting the drive's average data throughput, the average latency of the I/O operations, and the total energy used by the drive over the course of the test.
The Silicon Power P34A80 is insignificantly slower on The Destroyer than the earlier Phison E12-based drive. Both still rank as slightly slower than other high-end drives that use the same Toshiba/SanDisk 3D TLC, and significantly slower than the fastest TLC-based drives. However, the Phison E12 handles The Destroyer better than the Silicon Motion SM2262EN and offers more than twice the overall performance of the entry-level NVMe drives or Phison's first attempt at a high-end NVMe controller.
Average and 99th percentile latencies on The Destroyer have both regressed slightly with the newer Phison E12 firmware used by the P34A80, but it is still clearly delivering performance that places it in the top tier of high-end NVMe drives.
The average read latency on The Destroyer is unchanged by the new Phison E12 firmware, but the average write latency is no longer a stand-out winner. Instead, the P34A80's average write latency is merely on par with the other top NVMe drives on the market.
The 99th percentile read and write latency scores for the P34A80 are both worse than those from the Corsair MP510, but not by enough to knock the P34A80 out of the top tier of drives.
The energy consumed by the P34A80 over the course of The Destroyer is slightly more than that used by the Corsair MP510, but both are more efficient than most NVMe SSDs.