Western Digital has recently added new references to its range of hard drives. If the manufacturer formally does not communicate about this entry, the increased speed, lower weight and noise in rotation suggests that this is an increased density of the plates. So we have 1TB platters by Western Digital, long after Seagate announced such density in November 2011!
As the Caviar Green 5×00 rpm, there are six references available several months ago. They are all advertised for a throughput of 150MB/s, 21 dBA in rotation and a weight of 450g (cons 110 MB/s, and 23 dBA and 600g for previous versions):
- Caviar Green WD10EZRX : 1 TB, 64 MB cache
- Caviar Green WD7500AZRX : 750 GB, 64 MB cache
- Caviar Green WD5000AZRX : 500 GB, 64 MB cache
- Caviar Green WD5000AZDX : 500 GB, 32 MB cache
- Caviar Green WD3200AZRX : 320 GB, 64 MB cache
- Caviar Green WD3200AZDX : 320 GB, 32 MB cache
Have emerged recently four new references for Caviar Blue and Black. Despite the speed of 7200 rpm the dataflow is oddly the same or 150 MB/s (instead of 126 MB/s) while the noise is 29 dBA when rotating and the weight is 440g. Previously it was 28 dBA and 690g, and it is likely that the increase in noise comes from a thinner shell.
- Caviar Blue WD10EZEX : 1 TB, 64 MB cache
- Caviar Blue WD7500AZEX : 750 GB, 64 MB cache
- Caviar Black WD5003AZEX : 500 GB, 64 MB cache
- Caviar Blue WD5000AZLX : 500 GB, 32 MB cache
For now, the announced Caviar Red has the exclusivity in terms of 1TB platters for 2TB and 3TB capacities. They sudden take a significant advantage on the Green line as they are both more efficient in terms of throughput and have a quieter rotation:
- Caviar Red WD30EFRX : 3 TB, 64 MB, 145 MB/s, 23 dBA, 640g
- Caviar Green WD30EZRX : 3 TB, 64 MB, 123 MB/s, 24 dBA, 730g
- Caviar Red WD20EFRX : 2 TB, 64 MB, 145 MB/s, 23 dBA, 600g
- Caviar Green WD20EARX : 2 TB, 64 MB, 110 MB/s, 24 dBA, 640g
- Caviar Red WD10EFRX : 1 TB, 64 MB, 150 MB/s, 21 dBA, 450g
- Caviar Green WD10EARX : 1 TB, 64 MB, 110 MB/s, 23 dBA, 600g
We will salute the end of a very bad habit at Western: the change in number and density of the plates without changing the reference!