Plextor UltraPleX PX-40TS SCSI CD-ROM
2. Data Tests
Plextor PX-40TS SCSI CD ROM - Page 2
Data Tests
Test Method:
  I used CD Speed 99 v0.41b, SCSI Mechanic v2.1h (evaluation version) and 
  SiSoft Sandra 99 v3.5.0 to run Data tests. I run all tests with Sync Data Trasnfer 
  On & Off . All tests done with the same CD. 
CD Speed results: (Speed : Bigger is better, Seek Times : less is better, CPU Usage : less is better)
|  
       Speed (x)  | 
     
       Seek Time (ms)  | 
     
       CPU Usage (%)  | 
  ||||||||
|  
       Start  | 
     
       Average  | 
     
       End  | 
     
       Random  | 
     
       1/3  | 
     
       Full  | 
     
       1x  | 
     
       2x  | 
     
       4x  | 
     
       8x  | 
  |
|  
       Sync Off  | 
     
       18.19  | 
     
       18.22  | 
     
       18.21  | 
     
       87  | 
     
       90  | 
     
       135  | 
     
       5  | 
     
       10  | 
     
       20  | 
     
       41  | 
  
|  
       Sync On  | 
     
       18.67  | 
     
       31.75  | 
     
       41.93  | 
     
       83  | 
     
       92  | 
     
       128  | 
     
       1  | 
     
       3  | 
     
       7  | 
     
       14  | 
  
|  
       
  | 
  ||||||||||
SiSoft Sandra 99 results:
|  
       Drive Index  | 
     
       Track Speed (ppm)  | 
     
       Buffered Read (mb/s)  | 
     
       Sequential Read (mb/s)  | 
     
       Random Read (kb/s)  | 
     
       Average Access Time (ms)  | 
  |
|  
       Sync Off  | 
     
       2011  | 
     
       10091  | 
     
       93  | 
     
       2.856  | 
     
       744  | 
     
       108  | 
  
|  
       Sync On  | 
     
       3619  | 
     
       19437  | 
     
       110  | 
     
       5  | 
     
       797  | 
     
       113  | 
  
|  
       
  | 
  ||||||
SCSI Mechanic results: (I/O throughput : Bigger is better)
|  
       Random I/O  | 
     
       Sequential I/O  | 
     
       Same Sector I/O  | 
  |||||||
|  
       Min  | 
     
       Average  | 
     
       Max  | 
     
       Min  | 
     
       Average  | 
     
       Max  | 
     
       Min  | 
     
       Average  | 
     
       Max  | 
  |
|  
       Sync Off  | 
     
       509  | 
     
       711  | 
     
       891  | 
     
       1639  | 
     
       2777  | 
     
       2883  | 
     
       1032  | 
     
       1324  | 
     
       1646  | 
  
|  
       Sync On  | 
     
       220  | 
     
       701  | 
     
       888  | 
     
       1987  | 
     
       4709  | 
     
       6572  | 
     
       979  | 
     
       1188  | 
     
       1360  | 
  
Verdict of Data Tests:
  Plextor 40x really gives what it promises. Average transfer rate is 4.7Mb/S 
  and max is 6.5MB/s . As for seeks time it is really fast with 83ms (random). 
  Also since it is a scsi device it has low CPU usage. You have to ebable Sync 
  Data Tranfer for making the drive work in max speed..How good is the performance 
  ? (comparing to other CD Roms..) Into past i had made an roundup 
  between 3 drives (Teac 32x, Plextor 40x, Phillips 48x). If you go there you 
  will check that Plextor performed good..