Benchmark: Crystal Disk Mark
But if the ATTO results were so strong, why does the drive drop down the charts in Crystal Disk Mark?
Well, this particular benchmark involves repeated transfers of incompressible data and consequently doesn't allow the Force Series 3 drive to use SandForce's patented DuraWrite technology - an on-the-fly compression algorithm that reduces the size of the data written to the drive.
This is a worst-case scenario for SandForce drives, and as expected performance takes a significant hit. With half the number of die per memory device, the 120GB Force Series 3 scores considerably lower than a 240GB OCZ Vertex 3.