Windows: Hard drive benchmarks can help ensure not that your new drive is performing as well as it should. DiskMark is a freeware Windows utility that allows you to quickly measure your hard drive benchmark stats.
After installing the utility you select a hard drive, choose a amount of space to measure (1GB is the default) and decide if you want to customise the amounts of read and write rounds and runs. A 1GB test takes less than five minutes and gives you a useful benchmark.
DiskMark is a freeware utility for Windows Vista and Windows 7.