256GB Class Performance Testing
We rehashed the low-cost 256GB-class NVMe charts last used in the WD Blue SN500 NVMe review. The AORUS RGB is the most expensive drive of this group, but the others have had time to settle when the GIGABYTE isn't even available yet.
We've tested a number of Phison E12-based SSDs, and for the most part, the performance is similar across the board for drives of the same capacity. There are a few different firmware revisions shipping, and that plays a role. We do expect some changes with the addition of heat sinks and LEDs to extended IO and power consumption. The other E12 drive in our comparison group comes from the MyDigitalSSD BPX Pro tested with the initial release firmware.
Sequential Read Performance
There are some differences between the BPX Pro and the AORUS RGB M.2 in the sequential write test. None of the E12 drives we've tested thus far like our sequential read script for one reason or another. The queue depth (QD) 2 and 4 results always come out much lower than they should with our test, but not others.
Sequential Write Performance
There isn't a noticeable difference in the sequential write test between the two E12 drives. The BPX Pro line on the graph overshadows the AORUS from QD1 to QD128.
Sustained Sequential Write Performance
The newer firmware on the AORUS gives the drive a small advantage in the sustained write test for the first 40% of the user capacity. It important to note that neither drive suffers from thermal throttling writing to the entire user area (the full amount of the flash not set aside for overprovisioning). That would change with random data, but in a consumer environment users only read and write random data in small bursts.
Random Read Performance
The Phison E12 controller paired with 64L Toshiba BiCS FLASH delivers well over 10,000 random read IOPS at QD1. This is a good place to be for a low-cost NVMe drive but well behind products using the Silicon Motion, Inc. SM22262/SM2262EN controllers. The E12 drives, like the new AORUS, do make up for the lower random read performance at low queue depths by delivering more performance in sustained workloads.
Random Write Performance
The AORUS starts low in the random write test. The performance curve is quite a bit different from the BPX Pro. We heard Phison made some changes to the E12 series but didn't expect to see so much variation in the performance.
70% Read Sequential Performance
We can say the same for the 70% read sequential mixed workload test. The GIGABYTE AORUS RGN M.2 nearly reaches the same high throughput as the BPX Pro, but the performance curve is quite a bit different.
70% Read Random Performance
The 70% read random mixed workload test shows a substantial improvement in peak performance and very no deviation at low queue depths.