We've spent a couple of months running Intel's ICH7R and NVIDIA's nForce4 Serial ATA RAID controllers through our exhaustive suite of storage tests, and the results are something to behold. We started with a single drive and worked our way up through RAID levels 0, 1, 10, 0+1, and 5 with two, three, and even four hard drives. Read on to see which RAID controller reigns supreme and how the different RAID levels compare in performance.

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