Yes true that, I am willing to upgrade to z77 eventually in the near future that is why I went on and upgraded my boot drives to raided SSDs.PowerPC wroteYes with the new intel drivers you get TRIM on the Z77, my question was more towards khaled as he's on the older chipset.
i had little brainfart when i posted my question, forgot that sata III offered 6Gbits/s, so you'll still be under the theoretical maximum in raid. Those are nice speeds! will be upgrading my ssd soon.
Fact is with raid the system got a small boost compared to single SSD but nothing near the potential boost you get with z77. So yes your question is in its place, the boost isn't that great on old chipset.