Gigabyte Per Second (GB/s)

ComputingCurrent unit

1,000,000,000 bytes per second (8 Gbps). Memory and fast SSD bandwidth.

1 gigabyte per second = 8,000,000,000 bits per second (exactly).

1 gigabyte per second = 8,000,000,000 bits per second

About the gigabyte per second

The gigabyte grew out of the same habit of rounding 1,024 to 1,000. In 1998 the IEC published binary prefixes, reserving gigabyte for the decimal value of 1,000,000,000 bytes and naming 1,073,741,824 bytes a gibibyte. Disk makers have used decimal capacities since the first disk drive, which is why a drive sold as 400 GB can appear as about 372 GB in Windows, while macOS, iOS and Android report decimal sizes.

A gigabyte per second is 1,000,000,000 bytes per second, equal to 8 Gbit/s. At that rate a 25 GB single-layer Blu-ray worth of data transfers in 25 seconds, and one hour of standard-definition video at 2.2 Mbit/s, about 1 GB, would pass in a single second. A 10 Gigabit Ethernet link, by comparison, tops out near 1.25 GB/s. Memory and storage interfaces tend to be described in this unit because their bandwidth is far beyond what ordinary networks offer.

Sources: Wikipedia: Gigabyte; Wikipedia: 10 Gigabit Ethernet; NIST: Prefixes for binary multiples

Gigabyte Per Second conversion chart

1 gigabyte per second expressed in every other data transfer rate unit:

Unit1 gigabyte per second
Bps8,000,000,000
Kbps8,000,000
Mbps8,000
Gbps8
MB/s1,000
Tbps0.008
B/s1,000,000,000
KB/s1,000,000
MiB/s953.6743164
Kibit/s7,812,500
Mibit/s7,629.394531
Gibit/s7.450580597
KiB/s976,562.5
GiB/s0.9313225746

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