Many high-end motherboards hitting the market not only have RAID-5 connectivity onboard, but they are native solutions. Both nVidia's nForce4 SLI Intel Edition and Intel's own 955/945-series chipsets have the ability to process RAID-5 directly in their Southbridge controllers. Native solutions typically allow for very impressive performance, as they can bypass the PCI/PCI-X/PCIe busses completely and connect directly with the chipset. Of course, we were very curious to see how these solutions compared to the far more expensive add-in board solutions, not only in raw performance, but in terms of features and usability.
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