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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).
Thanks to its use of Advanced Format Technology, the 4 TB Western Digital Black (WD4003FZEX) edged out the 4 TB Western Digital Re (WD4000FYYZ), particularly at the innermost tracks where it was 12% faster. At the outermost tracks, the Black drive was only slightly (1.2%) faster than the Re drive.
Interestingly, the minimum transfer rate of 4 TB Western Digital Black (WD4003FZEX) is almost as fast as the maximum transfer rate of the 2 TB Western Digital AV-GP (WD20EVDS) we reviewed in 2010. HDD technology sure has progressed a fair bit over the last 4 years.
Platter Transfer Rate Profile
The platter profile of the 4 TB Western Digital Black (WD4003FZEX) drive we received look good. There were no marked dips in throughput that would signify a significant use of replacement sectors. Lots of them would point to poor platter quality.
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We also compared its platter profile to that of the 4 TB Western Digital Re (WD4000FYYZ). While both drives use the same 800 GB platters and spin at the same speed, they differ in one thing - Advanced Format Technology. The use of AFT allowed the 4 TB Western Digital Black (WD4003FZEX) to flatten the curve, by packing the bits into less space.
The results show this difference only because the inner 11-12% of the drive isn't being used. That is the space saved by using Advanced Format. If this drive was reformatted to use the old 512-byte sector, it would result in the platter profile as the 4 TB Western Digital Re (WD4000FYYZ).
Business Disk WinBench 99
The 4 TB Western Digital Black (WD4003FZEX) aced this test, coming in top - 20% faster than the 4 TB Western Digital Re (WD4000FYYZ) and the 2 TB Western Digital Caviar Black (6 Gbps).
Hard Disk Drive Model |
Capacity |
Business Disk |
Difference |
Useful Links |
|
Western Digital Black |
4 TB |
24.0 MB/s |
Baseline |
- |
|
Western Digital Caviar Green AFT |
2 TB |
22.1 MB/s |
- 7.9% |
||
Western Digital Re |
4 TB |
20.4 MB/s |
- 15.0% |
||
Western Digital Caviar Black (6 Gbps) |
2 TB |
20.0 MB/s |
- 16.7% |
||
Western Digital Red |
4 TB |
17.5 MB/s |
- 27.1% |
||
Western Digital AV-GP AFT |
3 TB |
16.5 MB/s |
- 31.3% |
||
Western Digital Caviar Green AFT (6 Gbps) |
3 TB |
16.3 MB/s |
- 32.1% |
||
Western Digital Red |
3 TB |
16.1 MB/s |
- 32.9% |
||
Samsung EcoGreen F4 |
2 TB |
13.3 MB/s |
- 44.6% |
||
Western Digital AV-GP |
2 TB |
12.2 MB/s |
- 49.2% |
||
High-End Disk WinBench 99
The WD Black came out top as well in the High-End Disk WinMark 99 test, edging out the 4 TB Western Digital Re (WD4000FYYZ).
Hard Disk Drive Model |
Capacity |
Business Disk |
Difference |
Useful Links |
|
Western Digital Black |
4 TB |
140.0 MB/s |
Baseline |
- |
|
Western Digital Re |
4 TB |
138.0 MB/s |
- 1.4% |
||
Western Digital Caviar Black (6 Gbps) |
2 TB |
126.0 MB/s |
- 10.0% |
||
Western Digital Red |
4 TB |
121.0 MB/s |
- 13.6% |
||
Western Digital Red |
3 TB |
114.0 MB/s |
- 18.6% |
||
Western Digital AV-GP AFT |
3 TB |
109.0 MB/s |
- 22.1% |
||
Western Digital Caviar Green AFT (6 Gbps) |
3 TB |
107.0 MB/s |
- 23.6% |
||
Samsung EcoGreen F4 |
2 TB |
106.0 MB/s |
- 24.3% |
||
Western Digital Caviar Green AFT |
2 TB |
101.0 MB/s |
- 27.9% |
||
Western Digital AV-GP |
2 TB |
64.9 MB/s |
- 53.6% |
||
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• Testing The 4 TB Western Digital Black |
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• Transfer Rate Range, Platter Profile |
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