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CD Read Tests
Let's take a quick look at the test system specs before we begin with
testing. Keep in mind that performance may vary depending on the hardware
you use, particularly the speed of your hard drive. This is why I like to provide
full specs for comparison.
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Test System
Specifications |
| CPU:
|
Pentium 4 2.8GHZ @
3.5GHz |
| Motherboard: |
Abit IS7 |
| Memory: |
Corsair XMS3200 (1GB) |
| Hard Drive: |
Western Digital 36GB
Raptor (10000rpm) |
| Video Card: |
ATI Radeon 9600 |
| Power Supply: |
QTechnology Papst
Series |
1. CD-DVD Speed - Pressed CD
|
Test Results |
|
Transfer Speed
Average: 36.28x
Start: 20.57x
End: 48.18x |
|
Seek Times
Random: 113ms
1/3: 126ms
Full: 199ms |
|
CPU Usage
1X: 2%
2X: 3%
4X: 5%
8X: 8% |
The
SHW-1635s handled my pressed test CD very well, easily hitting its maximum
read rate of 48x. Seek times and CPU usage were about average.
2. CD-DVD Speed - CD-R
|
Test Results |
|
Transfer Speed
Average: 37.17x
Start: 21.78x
End: 49.09x |
|
Seek Times
Random: 117ms
1/3: 128ms
Full: 201ms |
|
CPU Usage
1X: 15%
2X: 5%
4X: 12%
8X: 18% |
The
transfer speeds where very impressive and the drive was able to reach 49x
read speeds. The only issue was with CPU Usage. They were
unusually high with this type of media. I tested with a few other
discs but still ended up with almost all in their double digits.
3. CD-DVD Speed - CDRW Media
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Test Results |
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Transfer Speed
Average: 26.03x
Start: 15.02x
End: 34.47x |
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Seek Times
Random: 171ms
1/3: 128ms
Full: 201ms |
|
CPU Usage
1X: 2%
2X: 4%
4X: 7%
8X: 11% |
Despite the odd results with CD-R media, the drive handled rewritable media
quite well. Its maximum transfer speed was just under 35x and CPU
Usage went back down to normal.
4. DAE - Advanced Quality Tests
Lite-On drives have always done well in the
area. The SHW-1635s is no exception. Average speed was a high
34x and it passed all on-the-fly copying tests. Also, unlike a
majority of drives, it passed all advanced tests, reading both the leadin
and leadout info on the disc.
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