Phison E12 NVMe PCIe 3.0 x4 Controller Preview: Phison Turns Things Up a Notch


ATTO Disk Benchmark is perhaps one of the oldest benchmarks going and is definitely the main staple for manufacturer performance specifications. ATTO uses RAW or compressible data and, for our benchmarks, we use a set length of 256mb and test both the read and write performance of various transfer sizes ranging from 0.5 to 8192kb. Manufacturers prefer this method of testing as it deals with raw (compressible) data rather than random (includes incompressible data) which, although more realistic, results in lower performance results.

ATTO shows off some impressive numbers. Here we see that the speed ratings are fairly conservative, instead of 3.2GB/s reads, we are hitting 3.4GB/s+. Write speeds are spot on at 3GB/s.


Crystal Disk Benchmark is used to measure read and write performance through a sampling of random data which is, for the most part, incompressible. Performance is virtually identical, regardless of data sample so we have included only that using random data samples.


Just like ATTO, we are seeing some beastly read speeds that exceed Phison’s spec. In CDM the E12 sample reached just over 3.4GB/s read and 3.1GB/s write speeds. 4K QD 1 performance is now revealed as well. For reads, we have results of 47MB/s for writes it hit 151MB/s.


The toughest benchmark available for solid state drives is AS SSD as it relies solely on incompressible data samples when testing performance. For the most part, AS SSD tests can be considered the ‘worst case scenario’ in obtaining data transfer speeds and many enthusiasts like AS SSD for their needs. Transfer speeds are displayed on the left with IOPS results on the right.

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In AS SSD, the Phison E12 averaged a score of 5080 points. As per usual, AS SSD shows slightly lower performance than ATTO and CDM. Sequential read speed came in at 3GB/s and sequential write came in at nearly 3GB/s as well. 4K performance looks to be a bit better here than in CDM, here it achieved 58MB/s read and 148MB/s write at QD1. It was also able to deliver over 500K IOPS read and nearly 300K IOPS write. During the copy benchmark, the E12 performed very well with the ISO result copying in just half a second, followed by the game copy coming in at one second flat.


Anvil’s Storage Utilities (ASU) is the most complete test bed available for the solid state drive today. The benchmark displays test results for, not only throughput but also, IOPS and Disk Access Times. Not only does it have a preset SSD benchmark, but also, it has included such things as endurance testing and threaded I/O read, write and mixed tests, all of which are very simple to understand and use in our benchmark testing.


Anvil Storage Utilities once again confirms all the performance numbers we have been seeing. Overall, the new E12 controller delivered an overall score of 14,832 points.

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