IOMeter is another open source synthetic benchmarking tool which is able to simulate the various loads placed on hard drive and solid state drive technology.
We test with both random read and write 4k tests, as shown above. There are many ways to measure the IOPS performance of a Solid State Drive, so our results will sometimes differ from manufacturer’s quoted ratings. We do test all drives in exactly the same way, so the results are directly comparable.
The official random 4K figures for the 500GB drive are up to 98,000 IOPS for reads and 88,000 IOPS for writes. The review drive didn't quite make these top figures when tested, reads coming in just shy at 97,482 IOPS with writes a little further back on the official figure at 82,787 IOPS.