We all know that two is better than one, we have dual core CPUs, dual GPU video cards, and if you really want to get the most out of your storage, a set of SSDs in RAID will boost your performance noticeably. We tested 6 different RAID stripe sizes and 3 different RAID configs in 4 different storage benchmarks, some synthetic, others real world operations. More than 1200 benchmarks results summed up in a few charts.
A good read, and really dedicated work running the tests! Thanks jmke!