Samsung SSD 840 (250GB) Reviewby Kristian Vättö on October 8, 2012 12:14 PM EST
AS-SSD Incompressible Sequential Performance
The AS-SSD sequential benchmark uses incompressible data for all of its transfers. The result is a pretty big reduction in sequential write speed on SandForce based controllers, while other drives continue to work at roughly the same speed as with compressible data.
Incompressible sequential read/write speeds concur with our IOmeter tests: Read speed is great but write performance is distinctly previous gen.