What is MHz used for?

What is MHz used for?

The megahertz, abbreviated MHz, is a unit of alternating current (AC) or electromagnetic (EM) wave frequency equal to one million hertz (1,000,000 Hz). The megahertz is commonly used to express microprocessor clock speed.

Is higher MHz better?

RAM frequency is measured in MHz and usually immediately follows the DDR version in the RAM spec. … This is why though higher frequency RAM is technically faster, that additional speed often does not translate into better actual real world performance.