what is overclocking?

chanu0011

Honorable
Apr 12, 2014
87
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10,640
Hello everyone......i have i5-3330 processor and it supports intel hd graphics 2500...but i am not satisfied with it..i wanna upgrade to intel hd 4000 graphics...which processor should i choose?..my mother board is intel DZ75ML-45K..it has LGA1155 socket and supports 2nd and 3rd intel i3,i5,i7 processors...if i choose k processors like i5-3570k/i7-3770k it may lead to overclocking.pls help