For performance numbers, check out the motherboard vendors or adapter vendors websites for the different alternatives....
Keep in mind however that from a performance standpoint you may be comparing apples to oranges with SATA vs. Parallel SCSI as well as different adapters or ROCs may be tuned for different applications. For example, some ROCs or adapters are tuned for high throughput reads or writes while others may be tuned for lots of small I/O operations. If you are not sure where to look, check out the websites of Intel Corp., AMD Inc., LSI Corp., Atto Technology Inc. and Applied Micro Circuits Corp., among others.
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