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WD AV WD3200BVVT 8MB 320GB vs. Seagate Barracuda ST4000DM004 256MB 4TB + 8
Noise level
22 - 27 dB
23 - 24 dB
23 - 27 dB
26 - 28 dB
22 - 26 dB
23 - 26 dB
27 - 28 dB
25 - 28 dB
25 - 28 dB
Connection
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
S-ATA
Interface
S-ATA 3Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
S-ATA 6Gb/s
Dimensions (WxHxD)
Depth
100 mm
146.99 mm
147 mm
147 mm
146.99 mm
100.35 mm
146.99 mm
147 mm
147 mm
147 mm
Height
20.17 mm
26.1 mm
26.1 mm
20.2 mm
7 mm
26.11 mm
26.1 mm
26.1 mm
26.1 mm
Width
70 mm
101.6 mm
101.6 mm
101.6 mm
101.85 mm
69.85 mm
101.85 mm
101.6 mm
101.6 mm
101.6 mm
Form factor
2.5 inches
3.5 inches
3.5 inches
3.5 inches
3.5 inches
2.5 inches
3.5 inches
3.5 inches
3.5 inches
3.5 inches
Features
ERC (Error Recovery Control), NAS-optimized
ERC (Error Recovery Control), NAS-optimized
NAS-optimized
ERC (Error Recovery Control), NAS-optimized
ERC (Error Recovery Control), NAS-optimized
NAS-optimized
Cache size
8 MB
256 MB
64 MB
64 MB
256 MB
128 MB
64 MB
64 MB
64 MB
64 MB
Hybrid disk (SSHD)
No
No
No
No
No
Yes
No
No
No
No
Recording technology
SMR
CMR
CMR
SMR
CMR
CMR
CMR
SMR
Release year
2017
2012
2013
2017
2016
2016
2017
2014
2015
Operational Power Consumption (min-max)
0.25 - 3.7 W
2.7 - 4.1 W
3.3 - 4.5 W
3.9 - 5.1 W
0.5 - 1.8 W
3.95 - 4.8 W
6.4 W
3.4 - 5.3 W
3.4 - 5.3 W
Power consumption (standby)
0.25 W
0.4 W
0.4 W
0.3 W
0.13 W
0.5 W
5.2 W
0.4 W
0.4 W
Advanced Format (AF)
512e
512e
4Kn
4Kn
512e
512e
512e
Internal transfer rate
190 MB/s
147 MB/s
150 MB/s
220 MB/s
140 MB/s
263.38 MB/s
175 MB/s
150 MB/s
Mean Time Between Failure (MTBF)
1000000 h
1000000 h
1000000 h
1000000 h
1000000 h
1000000 h
Number of disks (platters)
2
3
4
1
2
3
3
5
4
Rotational speed
5400 RPM
5400 RPM
5400 RPM
5400 RPM
7200 RPM
5400 RPM
5900 RPM
7200 RPM
5400 RPM
5400 RPM
Storage capacity
0.32 TB
4 TB
3 TB
4 TB
2 TB
2 TB
4 TB
3 TB
6 TB
4 TB
Price/TB
156.25 £/TB
18.75 £/TB
22.67 £/TB
24.25 £/TB
21.5 £/TB
34.5 £/TB
23 £/TB
18.67 £/TB
25.83 £/TB
19.5 £/TB
Unrecoverable Read Error (URE)
1 per 10^14
1 per 10^14
1 per 10^14
1 per 10^15
1 per 10^14
1 per 10^14
1 per 10^14
1 per 10^14
1 per 10^14