<Tr> <Td> 1,000,000,000 bit / s </Td> <Td> rate = 1 Gbit / s (one gigabit or one billion bits per second) </Td> </Tr> <P> Binary prefixes are sometimes used for bit rates . The International Standard (IEC 80000 - 13) specifies different abbreviations for binary and decimal (SI) prefixes (e.g. 1 KiB / s = 1024 B / s = 8192 bit / s, and 1 MiB / s = 1024 KiB / s). </P> <P> In digital communication systems, the physical layer gross bitrate, raw bitrate, data signaling rate, gross data transfer rate or uncoded transmission rate (sometimes written as a variable R or f) is the total number of physically transferred bits per second over a communication link, including useful data as well as protocol overhead . </P> <P> In case of serial communications, the gross bit rate is related to the bit transmission time T b (\ displaystyle T_ (b)) as: </P>

The amount of data that can be transferred to or from memory per second