Thats not exactly scientific benchmarks. How do you ensure that the CPU is in the same state each time? Meaning maybe when /if3 is executed there is nothing else going on in the CPU, where as when /if1 is executing, your anti-virus program is in the process of running an automated scan of all your files. Thats why benchmark programs cost several hundreds of not several thousands of dollars, because it isn't as simple as using a timer and counting which takes longer.