Transfer Rate Range

This chart shows you the range of platter-to-buffer transfer rates from the innermost track to the outermost track. In other words, it shows you the range of disk transfer rates of the hard drives (from minimum and maximum).

Surprisingly, the 6 TB Western Digital Green was actually slower than the 6 TB Western Digital Red across the board. This shows that the 6 TB Red has a higher (approximately 3.7%) spindle speed or areal density than the 6 TB Green. Still, that puts it far ahead of the 4 TB Western Digital Red and the 3 TB Western Digital Red.

Platter Transfer Rate Profile

The platter profile of the 6 TB Western Digital Green drive we received was very good. There were no noticeable dips in throughput that would signify a significant use of replacement sectors. Lots of them would point to poor platter quality.

We also compared its platter profile to that of the 6 TB Western Digital Red, which uses the same 1.2 TB platters. It is obvious that the 6 TB Red has a higher spindle speed than the 6 TB Green drive, even though Western Digital rates them both with a maximum sustained transfer rate of 175 MB/s.

The actual results show that the 6 TB Green drive delivered a peak transfer rate of about 173 MB/s, while the 6 TB Red drive hit about 188 MB/s.

The performance gap was maintained throughout the entire platter, which strongly points to either a higher spindle speed or a higher areal density as the reason for the difference in performance.

Business Disk WinBench 99

Surprisingly, the 6 TB Western Digital Green came in TOPS in this test, beating even the 4 TB Western Digital Black, the 4 TB Western Digital Red Pro and the 4 TB Western Digital Re - all 7200 RPM hard disk drives.

High-End Disk WinBench 99

In the High-End test though, the 6 TB Western Digital Green slumped to mid-place, coming in slower than even the 4 TB Western Digital Red.

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