mbps

Rps is likely misspelled.

Rps has no English definition.

As a noun Mbps is

megabit per second, a measure of data transfer rate.

As an initialism MBps is

megabytes per second.

In computing terms the difference between mbps and rpm

is that mbps is megabytes per second while rpm is rPM Package Manager, or formerly Red Hat Package Manager, a package management system used by some distributions of the Linux operating system – most importantly those by Red Hat.

As an initialism MBps

is megabytes per second.

As a proper noun rpm is

alternative capitalization of RPM|lang=en.

As initialisms the difference between ntu and mbps

is that ntu is nephelometric turbidity units while mbps is (computing) megabytes per second.

Megabyte is a initialism of mbps.

As a noun megabyte

is megabyte (about a million bytes).

As an initialism mbps is

(computing) megabytes per second.