Benchmark: ATTO
The ATTO benchmark shows of a drive's maximum throughput and backs up Intel's claims. The 300GB 320 Series SSD hits the upper limits of the SATA 3Gbps interface in the sequential read test, and sequential write performance is more than double that of the last-generation 160GB X25-M.
That would have been considered a mighty achievement just a few months ago, but the arrival of SATA 6Gbps drives keep Intel's 320 Series in the bottom half of the chart.