Lexar Professional NM800 Pro Heatsink 2TB SSD Review

To test 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 256GB Samsung SSD850 Pro.

100GB data file.
60GB iso image.
60GB Steam folder – 29,521 files.
50GB File folder – 28,523 files.
21GB 8K Movie demos.
12GB Movie folder – 24 files (mix of Blu-ray and 4K files).
11GB 4K Raw Movie Clips (8 MP4V files).
10GB Photo folder – 621 files (mix of png, raw and jpeg images).
10GB Audio folder – 1,483 files (mix of mp3 and .flac files).
5GB (1.5bn pixel) photo.
Blu-ray movie.

The drive handled our real-life file transfers without any problems. It averaged 527MB/s when writing large files and 458MB/s when reading the same data back. The fastest write transfer speed was the 549MB/s from the 60GB iso and BluRay movie. The fastest read performance was from the 5GB image transfer at 467MB/s. The slowest transfer for both reads and writes was the 50GB folder at 300MB/s and 248MB/s respectively.

To get a measure of how much faster PCIe NVMe drives are than standard SATA SSD's we use the same files but transfer to and from a 2TB Kioxia Exceria Plus drive:

Swapping over to an all NVMe architecture saw transfer speeds rocket and transfer times slashed as you might expect. Six out of the thirteen tests topped 3GB/s when writing the data and nine topped 2GB/s when reading the data back. The drive seemed to struggle a bit when reading the 100GB data file, however, the write performance was very good. The slowest transfers were once again came from the 50GB file folder with 931MB/s for reads and 715MB/s for writes.

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