A good point - that can be checked on Win8 using PerfMon: http://www.thewindowsclub.com/how-to-use-perfmon-performance-monitor-windows , selecting the counter Logical Disk...Average Disk Queue Length as a first cut. My understanding is an average value over 2 probably means a bottleneck.

>Perhaps the problem is not CPU-bound but rather IO-bound? (i.e. the bottleneck is in disc I/O rather than lack of "number-crunching" ability of CPU)
>
>>I am Using Ghost Script to convert PS to PDF files.
>>
>>On my I3 machine having 4 GB 1333 FSB RAM and 7200 RPM HDD I could convert 100 Files in 25 Seconds.
>>
>>I have now bought I7 4770 k processor with 16 GB 1600 FSB RAM with SSD Drive and Intel Most Recomended Mother board For the processor.
>>But the performance is not much significant.
>>
>>In my I3 CPU Usage Graph reached up to 70-75 % but in I7 I see it only around 15-20 % which means that my CPU is not working to its optimization.
>>
>>What should I do to get the best optimization. How to check whether my RAM,SSD/HDD,Mother Board are running to their optimization or not ?
>>
>>How could I make my machine work fast for my above conversion task
>>regards