RARLAB – WinRar v3.61 has a multithreaded version of
the RAR compression algorithm, which improves the compression speed on
computers with several CPU, dual core CPU and processors with
hyperthreading technology. Multithreading is enabled by default, but
you can disable it in “General” part of “Settings” dialog.
You can see the trend can’t you? This board is just not measuring up in performance compared to the other boards involved in our testing. This is unusual, as we typically see very close scores at default settings.