Desktop Test System
ATTO Baseline Performance
Version and / or Patch Used: 2.34
ATTO is an established method of measuring sequential throughput often used in marketing literature. Although it has very little value in measuring real-world performance, we can use it to verify the manufacturer's claims.
In ATTO, we fell short of Plextor's claims of 770 MB/s sequential read and 580 MB/s sequential write speeds. This doesn't come as a surprise to us and, after we explain why, it won't be a surprise to you.
PCI Express performance varies from one motherboard model to another. This isn't just an issue on consumer motherboards; we see the performance issues on workstations and servers, as well. Performance can also vary between lanes on the same motherboard.