Something to do with PCI-E lanes or different controller performance?
But the difference is very small. For the price and space of dedicated RAID card get better CPU, RAM or Video and use on-board RAID. Unless dedicated card provides additional modes or features.
See, the night I ordered it was the night I got my intel raid going, which I was working on for days, turned out I had to clear cmos and default my UEFI LOL. By then, I was like screw it, I ain't gonna cancel the order, well, it come too where I did need it for my old maxtor as per explained above "new intel drivers made the drive obsolete", so it worked out. And even now I am using hyperduo which is pretty badass for 44 bucks. ssd+hhd= best performance=faster than ssd alone and faster than hdd alone
. And then I have my raid0 storage on the intel with two 5400 RPM, with everything enabled, the raid card, the intel raid utility, windows boots up as like before 10 seconds=fast.
Man, windows7 just rules imho.
All new tech is just crazy...
PC come from a long ways, and it just blows my mind.