The Tech Report reviews the DiamondMax 11, a very different drive from the 10.  Where the 10 shone in WinBench and file transfer, the 11 does not perform nearly as well.  The achilles heel of the 10 was single user multitasking, while the 11 beats out 10K Raptors on iPEAK multitasking tests. 
“The DiamondMax 11 has everything you’d expect from a current-generation desktop Serial ATA drive, including a fluid dynamic bearing motor to lower noise levels, 500GB of capacity, a 16MB cache, and support for 300MB/s transfer rates and Native Command Queuing (NCQ). Maxtor’s NCQ implementation has proven to be particularly potent in the past, as well; the DiamondMax 10 is approaching two years old, but it’s had no problem keeping up with the multitasking performance of even Western Digital’s most recent Raptors.”

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