HDTach v3.0.4.0 

HD Tach will test the sequential read, random access and interface burst speeds of your attached storage device (hard drive, flash drive, removable drive, etc). All drive technologies such as SCSI, IDE/ATA, 1394, USB, SATA and RAID are supported. Test results from HD Tach can be used to confirm manufacturer specs, analyze your system for proper performance, and compare your performance with others. HD Tach is very easy to use, quick, and presents data in easy to read graphs, including the ability to compare two storage devices on screen at the same time for easy analysis.

Intel X25-M 'G2' 34nm 160GB SSD Review - Storage 33

No real differences here.  Both X25’s stay at the top of the chart.

Intel X25-M 'G2' 34nm 160GB SSD Review - Storage 34

We noted a slight increase in write speeds as compared to the first generation X25-M, but the improvement was only marginal.  It seems the ‘hard’ 80 MB/sec limit is still in place, only nudged a bit higher by Intel.

Intel X25-M 'G2' 34nm 160GB SSD Review - Storage 35

The X25-M G2 breaks the 0.1 ms barrier in HDTach.
The only other drives to hit that mark are the PCI-E based ioDrive and DDRDrive.

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