There are obvious errors in the 3.5" Hard Drive Charts under the "interface performance" section. You may need to select "View All Products" to view the drives in question.
There are two ATA/133 Hitachi T7K500's in the 180MB/sec range:
Those results are impossible for the ATA/133 interface, which has a maximum potential throughput of 133MB/sec. It appears that someone mistakenly keyed in results for the wrong drives when creating the charts. And I suspect the drives to which those results actually belong are the two Hitachi T7K500 SATA 3Gbps models listed in the 80MB/sec range (surrounded by PATA drives):
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