Lexar NM790 4TB SSD Review

1. Introduction2. Lexar NM790 4TB3. Testing Methodology4. CrystalDiskMark5. ATTO Disk Benchmark6. AS SSD7. 128KB Sequential Performance8. 4K Random Read v QD Performance9. 4K Random Write v QD Performance10. 4K 70/30 Mixed Performance11. 4K Random Performance QD1-QD812. Throughput13. PCMark 10 Full System Drive Benchmark14. 3DMark Storage Benchmark 15. Final Fantasy XIV Endwalker Official Benchmark16. Drive Temperatures17. Real Life File Transfers18. Closing Thoughts19. View All Pages

To test the real-life performance of a drive we use a mix of folder/file types and by using the FastCopy utility (which gives a time as well as MB/s result) we record the performance of drive reading from & writing to a 2TB Seagate FireCuda 510.

Transfer Details

• Windows 10 backup – 118GB.
• Data file – 100GB.
• BluRay Movie – 42GB.
• Windows 11 iso – 5.4GB.
• File folder – 50GB – 28,523 files.
• Steam folder – 222GB (8 games: Alien Isolation, Battlefield 4, BioShock Infinite, Crysis 3, Grand Theft Auto V, Shadow Of Mordor, Skyrim, The Witcher3 Wild Hunt).
• Movie demos 8K – 21GB – (11 demos).
• Raw Movie Clips 4K – 16GB – (9 MP4V files).
• Movie folder – 12GB – 15 files – (8 @ .MKV, 4 @ .MOV, 3 @ MP4).
• Photo Folder – 10GB – 304 files – (171 @ .RAW, 105 @ JPG, 21 @ .CR2, 5 @ .DNG).
• Audio Folder – 10GB – 1,483 files – (1479 @ MP3, 4 @ .FLAC files).
• Single large image – 5GB – 1.5bn pixel photo.
• 3D Printer File Folder – 4.25GB – (166 files – 105 @ .STL, 38 @ .FBX, 11 @ .blend, 5 @ .lwo, 4 @ .OBJ, 3@ .3ds).
• AutoCAD File Folder – 1.5GB (80 files – 60 @ .DWG and 20 @.DXF).

The drive averaged 4,232MB/s when writing the 14 transfer tests, with the fastest being the 6,012MB/s for the 100GB Data file transfer and the slowest being 644MB/s for the 50GB file folder transfer. Reading back the data the average was a little faster at 4,752MB/s. Once again the 100GB Data file transfer was the quickest at 6,471MB/s and the slowest at 1,164MB/s, the 50GB file folder transfer.

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