Megahertz vs. Megabyte — What's the Difference?

One million cycles per second. Used especially as a radio-frequency unit. Also called megacycle.

The megabyte is a multiple of the unit byte for digital information. Its recommended unit symbol is MB. The unit prefix mega is a multiplier of 1000000 (106) in the International System of Units (SI).

A unit equal to one million cycles per second.

A unit of computer memory or data storage capacity equal to 1,048,576 (220) bytes.

One million periods per second

One million bytes. See Usage Note at gigabyte.

One million (10⁶, or 1,000,000) bytes or 1,000 kilobytes.

A mebibyte.

A unit of information equal to one million (1,048,576) bytes