Xvid Encoding:
We tested video encoding performance using VirtualDub-MPEG version 1.6.15 and a multi-threaded version of the Xvid codec, along with the LAME MT MP3 encoder for encoding audio. We did a two-pass encode of a 15-minute 276MB digital TV recording with a target file size of 100MB.
  
    
    
      - 
        Shuttle SS21T (AMD FX62, onboard SiS Mirage 1 video)
      
- 
        Shuttle SS21T (AMD FX62, 7600 GT)
      
- 
        AOpen XC Cube EU965 (Intel X6800, onboard GMA950 video)
      
- 
        AOpen XC Cube EU965 (Intel X6800, 7600 GT)
      
- 
        Shuttle SD37P2 (Intel X6800, 7900 GTX)
      
- 
        Asus Crosshair (AMD FX62, 7900 GTX)
      
      
        - 
          
            1024.0
           
- 
          
            990.0
           
- 
          
            727.0
           
- 
          
            701.0
           
- 
          
            687.0
           
- 
          
            955.0
           
 
    Time in Seconds (lower is better)
   
 
The benefits of the Intel Core 2 processor are evident here, with a near five minutes longer encoding time taken on the SS21T rather than the SFF systems three times more expensive. However the comparative AMD FX-62 ATX system is only 30 to 60 seconds faster, with some of this attributed to the more advanced engineering and the rest to the better memory performance.
MP3 Encoding:
We used LAME MT for our audio encoding test - it's the multi-threaded version of the popular LAME MP3 encoder. We ran tests with both Intel's and Microsoft's compilers - naturally, the Intel compiler resulted in some performance increases on Intel's processors. We converted all 18 tracks from Moby's popular Play album to a 192kbps variable bit-rate MP3.
  
    
    
      - 
        Shuttle SS21T (AMD FX62, onboard SiS Mirage 1 video)
      
- 
        Shuttle SS21T (AMD FX62, 7600 GT)
      
- 
        AOpen XC Cube EU965 (Intel X6800, onboard GMA950 video)
      
- 
        AOpen XC Cube EU965 (Intel X6800, 7600 GT)
      
- 
        Shuttle SD37P2 (Intel X6800, 7900 GTX)
      
- 
        Asus Crosshair (AMD FX62, 7900 GTX)
      
      
        - 
          
            175.0
           
- 
          
            175.0
           
- 
          
            185.0
           
- 
          
            110.0
           
- 
          
            110.0
           
- 
          
            175.0
           
 
    Time in Seconds (lower is better)
   
 
  
    
    
      - 
        Shuttle SS21T (AMD FX62, onboard SiS Mirage 1 video)
      
- 
        Shuttle SS21T (AMD FX62, 7600GT)
      
- 
        AOpen XC Cube EU965 (Intel X6800, onboard GMA950 video)
      
- 
        AOpen XC Cube EU965 (Intel X6800, 7600GT)
      
- 
        Shuttle SD37P2 (Intel X6800, 7900GTX)
      
- 
        Asus Crosshair (AMD FX62, 7900 GTX)
      
      
        - 
          
            174.0
           
- 
          
            174.0
           
- 
          
            172.0
           
- 
          
            100.0
           
- 
          
            100.0
           
- 
          
            174.0
           
 
    Time in Seconds (lower is better)
   
 
There is no performance difference between integrated and discrete graphics in both encoding tests, unlike the Intel-based AOpen XC Cube. In addition, the SS21T performs exactly as fast as the more expensive AMD FX-62 ATX system too.
MP3 Decoding:
  
    
    
      - 
        Shuttle SS21T (AMD FX62, onboard SiS Mirage 1 video)
      
- 
        Shuttle SS21T (AMD FX62, 7600 GT)
      
- 
        AOpen XC Cube EU965 (Intel X6800, onboard GMA950 video)
      
- 
        AOpen XC Cube EU965 (Intel X6800, 7600 GT)
      
- 
        Shuttle SD37P2 (Intel X6800, 7900 GTX)
      
- 
        Asus Crosshair (AMD FX62, 7900 GTX)
      
      
        - 
          
            45.0
           
- 
          
            42.0
           
- 
          
            36.0
           
- 
          
            34.0
           
- 
          
            33.0
           
- 
          
            39.0
           
 
    Time in Seconds (lower is better)
   
 
  
    
    
      - 
        Shuttle SS21T (AMD FX62, onboard SiS Mirage 1 video)
      
- 
        Shuttle SS21T (AMD FX62, 7600 GT)
      
- 
        AOpen XC Cube EU965 (Intel X6800, onboard GMA950 video)
      
- 
        AOpen XC Cube EU965 (Intel X6800, 7600 GT)
      
- 
        Shuttle SD37P2 (Intel X6800, 7900 GTX)
      
- 
        Asus Crosshair (AMD FX62, 7900 GTX)
      
      
        - 
          
            40.0
           
- 
          
            41.0
           
- 
          
            45.0
           
- 
          
            31.0
           
- 
          
            31.0
           
- 
          
            39.0
           
 
    Time in Seconds (lower is better)
   
 
Decoding speed drops a few seconds to the Intel system, despite having very similar hard drive performance scores. The AMD FX-62 ATX system only performs a slight bit faster though.
    
 
    
    
        
            
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