Efficiency
Each PSU's efficiency is calculated by dividing the power it outputs by the power it uses to do so. We test at a range of load levels suitable to the PSU being reviewed.
  
    
    
      - 
        SilverStone ST1000-PT 1,000W
      
 
      - 
        Be Quiet! Dark Power Pro 10 850W
      
 
    
    
      
      
        
          0
        
        
          10
        
        
          20
        
        
          30
        
        
          40
        
        
          50
        
        
          60
        
        
          70
        
        
          80
        
        
          90
        
       
     
    Percentage (higher is better)
    
   
 
  
    
    
      - 
        SilverStone ST1000-PT 1,000W
      
 
      - 
        Be Quiet! Dark Power Pro 10 850W
      
 
    
    
    Percentage (higher is better)
    
   
 
  
    
    
      - 
        SilverStone ST1000-PT 1,000W
      
 
      - 
        Be Quiet! Dark Power Pro 10 850W
      
 
    
    
    Percentage (higher is better)
    
   
 
  
    
    
      - 
        SilverStone ST1000-PT 1,000W
      
 
      - 
        Be Quiet! Dark Power Pro 10 850W
      
 
    
    
    Percentage (higher is better)
    
   
 
     
    
    
        
            
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