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In telecommunications and computing, bit rate (bitrate or as a variable R) is the number of bits that are conveyed or processed per unit of time. [1]The bit rate is expressed in the unit bit per second (symbol: bit/s), often in conjunction with an SI prefix such as kilo (1 kbit/s = 1,000 bit/s), mega (1 Mbit/s = 1,000 kbit/s), giga (1 Gbit/s = 1,000 Mbit/s) or tera (1 Tbit/s = 1,000 Gbit/s). [2]
The ISQ symbols for the bit and byte are bit and B, respectively.In the context of data-rate units, one byte consists of 8 bits, and is synonymous with the unit octet.The abbreviation bps is often used to mean bit/s, so that when a 1 Mbps connection is advertised, it usually means that the maximum achievable bandwidth is 1 Mbit/s (one million bits per second), which is 0.125 MB/s (megabyte per ...
16 Gbit/s: 2 GB/s: Thunderbolt: 2 × 10 Gbit/s: 2 × 1.25 GB/s: 2011 USB 3.2 SuperSpeed+ (aka USB 3.2 Gen 2×2 USB4 Gen 2×2, USB4 Gen 3×1) [45] 20 Gbit/s: 2.424 GB/s: 2017 Thunderbolt 2: 20 Gbit/s: 2.5 GB/s: 2013 FPGA Mezzanine Card Plus (FMC+) [46] 28 Gbit/s: 3.5 GB/s: 2019 External PCI Express 2.0 ×8: 32 Gbit/s: 4 GB/s: USB4 Gen 3×2 [47 ...
For example, a data bus eight-bytes wide (64 bits) by definition transfers eight bytes in each transfer operation; at a transfer rate of 1 GT/s, the data rate would be 8 × 10 9 B/s, i.e. 8 GB/s, or approximately 7.45 GiB/s. The bit rate for this example is 64 Gbit/s (8 × 8 × 10 9 bit/s).
3 MB: A three-minute song (133 kbit/s) 650–900 MB – a CD-ROM; 1 GB: 114 minutes of uncompressed CD-quality audio at 1.4 Mbit/s; 16 GB: DDR5 DRAM laptop memory under $40 (as of early 2024) 32/64/128 GB: Three common sizes of USB flash drives; 1 TB: The size of a $30 hard disk (as of early 2024)
Memory bandwidth is the rate at which data can be read from or stored into a semiconductor memory by a processor.Memory bandwidth is usually expressed in units of bytes/second, though this can vary for systems with natural data sizes that are not a multiple of the commonly used 8-bit bytes.
CFexpress Type B: XQD form factor (38.5 mm × 29.8 mm × 3.8 mm), PCIe 3.0 x2 (1.97 GB/s), NVMe 2.0 2019 ? CFexpress Type A: 20 mm × 28 mm × 2.8 mm, PCIe 3.0 x1 (1.0 GB/s), NVMe [citation needed] CFexpress Type C: 54 mm × 74 mm × 4.8 mm, PCIe 3.0 x4 (4.0 GB/s), NVMe [citation needed] – – – – PCIe 3.0 x8 (8.0 GB/s), NVMe MultiMediaCard
Bit Calculator – a tool providing conversions between bit, byte, kilobit, kilobyte, megabit, megabyte, gigabit, gigabyte BitXByteConverter Archived 2016-04-06 at the Wayback Machine – a tool for computing file sizes, storage capacity, and digital information in various units