Looking at the benchmarks of the two leading SSDs on today's market, Samsung 840 Pro and the Vector, I notice something odd between them. Samsung had faster reads than writes. While the Vector had roughly equal write/read throughput.

467.3MB/s: Samsung 840 Pro
490.5MB/s: OCZ Vector

515.3MB/s: Samsung 840 Pro
497.0MB/s: OCZ Vector

Benchmark used is Blackmagicdesign's Disk Speed Test.

My guess is that this was purposely done. For reasons I do not know and would like to know through your comments below.