M.2 vs mSATA case study – Crucial M500 240GB & Plextor M6e 256GB
Plextor M6e 256GB – CPU vs PCH results
Although the sequential speeds are similar between the CPU and PCH results, we can see that the 4K results are much better when we switch to the CPU lanes. The final result in Anvil is almost 20% higher using CPU PCI-E lanes instead of PCH lanes.
The results from the Plextor M6e are in a totally different class compared to the Crucial M500. In the ATTO Disk Benchmark the results are similar between CPU and PCH lanes.
In CrystalDiskMark we see again big difference at 4K transfers between the PCH and CPU lanes. Here we see also an increase in the sequencial read speed from 728MB/s to 750MB/s.