The gibibyte is closely related to the gigabyte (GB), which is defined as 109 bytes = 1000000000bytes, but has been used as a synonym for gibibyte in some contexts (see binary prefix). In terms of standard gigabytes, 1GiB ≈ 1.074GB. 1024 gibibytes are equal to one tebibyte.
Binary prefixes are increasingly used in scientific literature and open source software. In product advertising and other non-scientific publications, the kilobyte sometimes refers to a power of ten and sometimes a power of two.