Lexar NM790 4TB SSD Review

The PCMark 10 Full System Drive Benchmark uses a wide-ranging set of real-world traces from popular applications and common tasks to fully test the performance of the fastest modern drives. The benchmark is designed to measure performance of fast system drives using the SATA bus at the low end and devices connected via PCI Express at the high end.

The goal of the benchmark is to show meaningful real-world performance differences between fast storage technologies such as SATA, NVMe, and Intel’s Optane. The Full System Drive Benchmark uses 23 traces, running 3 passes with each trace. It typically takes an hour to run.

Traces used:

Booting Windows 10.
Adobe Acrobat – starting the application until usable.
Adobe Illustrator – starting the application until usable Adobe Premiere Pro – starting the application until usable.
Adobe Photoshop – starting the application until usable.
Battlefield V – starting the game until the main menu.
Call of Duty Black Ops 4 – starting the game until the main menu.
Overwatch – starting the game until main menu.
Using Adobe After Effects.
Using Microsoft Excel.
Using Adobe Illustrator.
Using Adobe InDesign.
Using Microsoft PowerPoint.
Using Adobe Photoshop (heavy use).
Using Adobe Photoshop (light use).
cp1 Copying 4 ISO image files, 20 GB in total, from a secondary drive to the target drive (write test).
cp2 Making a copy of the ISO files (read-write test).
cp3 Copying the ISO to a secondary drive (read test).
cps1Copying 339 JPEG files, 2.37 GB in total, to the target drive (write test).
cps2 Making a copy of the JPEG files (read-write test).
cps3 Copying the JPEG files to another drive (read test).

The 4TB Lexar NM790 displayed strong performance in PCMark10's Full System Drive Benchmark. It averaged 307MB/s for the six Adobe startup traces, the fastest being the 385MB/s for the startup test of Premiere Pro. For the Adobe usage traces it averaged 592MB/s for the five tests, with the fastest being the 1,285MB/s for the Adobe Photoshop heavy usage trace.

The drive averaged 867MB/s for the three gaming tests, the fastest being Battlefield V at 1,109MB/s. When it came to the file transfers, the fastest was the cp1 Write test at 3,977MB/s with the drive averaging 2,351MB/s for the six file transfer tests.

With an overall bandwidth figure of 589.5MB/s, the 4TB Lexar NM790 slots into the fifth spot on the results chart but it is the fastest consumer Gen4 drive we've seen in this test.

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