December 2001: IDE HDD Roundup
|
 |
Maxtor D740X-6L |
Samsung SpinPoint SP2001H/ 4002H/ 80004H |
Western Digital Caviar WD1000BB |
Western Digital Caviar WD400BB/WD800BB |
Maxtor D540X-4D |
| Size |
20/ 40/ 60/ 80 GB
|
20/ 40/ 80 GB
|
100 GB
|
40/ 80 GB
|
20/ 40/ 60/ 80 GB
|
| Spindle speed |
7200 RPM
|
7200 RPM
|
7200 RPM
|
7200 RPM
|
5400 RPM
|
| Buffer size |
2 MB
|
2 MB
|
2 MB
|
2 MB
|
2 MB
|
| Heads |
1/ 2/ 3/ 4
|
1/ 2/ 4
|
6
|
3/ 6
|
1/ 2/ 3/ 4
|
| Discs |
1/ 1/ 2/ 2
|
1/ 1/ 2
|
3
|
2/ 3
|
1/ 1/ 2/ 2
|
| Latency |
4.2 ms
|
?
|
4.2 ms
|
4.2 ms
|
5.5 ms
|
| Average read access time |
8.5 ms
|
9 ms
|
8.9 ms
|
8.9 ms
|
12.0 ms
|
| Average track-to-track access time |
0.8 ms
|
?
|
2.0 ms
|
2.0 ms
|
2.0 ms
|
| Average full track access time |
17.8 ms
|
?
|
21.0 ms
|
21.0 ms
|
24.0
|
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