Do I need to install Intel rapid storage technology on this PC?

Hi all
I have formatted my hard drive and installed windows 8.1, my laptop is (Lenovo z5070 i5 ) it come with a DVD which has windows 8.1 drivers x64 bit
I found intel rapid storage technology driver and when I searched the web some people say that it's not nessecary to install it since most of new PCs can deal with SATA and RAID something like that:D excuse me I don't have enough information aboout Hard drives:D
so what should I do, should i install it or I don't need to?!

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