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EspañolMEGABIT PER SECOND
(Redirected from Megabit/s)
A 'megabit per second' (abbreviated as 'Mbps', 'Mbit/s', or 'mbps') is a unit of data transfer rates equal to 1,000,000 bits per second (this equals about 976 kilobits per second). Because there are 8 bits in a byte, a transfer speed of 8 megabits per second (8 Mbps) is equivalent to 1,000,000 'bytes' per second (approximately 976 KiB/s).
The bandwidth of consumer broadband internet services is often rated in Mbps.
Data streams representing compressed video are often measured in Mbit/s:
★ 2 Mbit/s — VHS quality
★ 8 Mbit/s — DVD quality
★ 55 Mbit/s — HDTV quality
More specific examples found on standard Comcast digital streams (transmitted in MPEG2 format):
★ 2-3 Mbit/s — a low-definition digital channel with a very clean signal
★ 5-6 Mbit/s — a low-definition digital channel with a digitized ("dirty") analog signal (or just an analog channel)
★ 8-12 Mbit/s — a medium to high-definition digital channel with DVD quality data (equivalent to HBO-HD)
★ 18-20 Mbit/s — a high-definition digital channel at 1080i (equivalent to Discovery HD)
Another example, Network cards and cables are typically available in 10/100/1000 Mbit/s. This means they can support a transfer rate of 10 or 100 or 1000 Mbit/s.
★ Megabit, a unit of information ''storage'' (as opposed to ''transmission'')
★ List of device bandwidths
★ Gigabit Ethernet
★ Megabyte per second (MB/s or MBps)
★ Gigabit per second (Gbit/s or Gbps)
★ Gigabyte per second (GB/s or GBps)
A 'megabit per second' (abbreviated as 'Mbps', 'Mbit/s', or 'mbps') is a unit of data transfer rates equal to 1,000,000 bits per second (this equals about 976 kilobits per second). Because there are 8 bits in a byte, a transfer speed of 8 megabits per second (8 Mbps) is equivalent to 1,000,000 'bytes' per second (approximately 976 KiB/s).
| Contents |
| Usage Examples |
| Interface and device speeds |
| See also |
Usage Examples
The bandwidth of consumer broadband internet services is often rated in Mbps.
Data streams representing compressed video are often measured in Mbit/s:
★ 2 Mbit/s — VHS quality
★ 8 Mbit/s — DVD quality
★ 55 Mbit/s — HDTV quality
More specific examples found on standard Comcast digital streams (transmitted in MPEG2 format):
★ 2-3 Mbit/s — a low-definition digital channel with a very clean signal
★ 5-6 Mbit/s — a low-definition digital channel with a digitized ("dirty") analog signal (or just an analog channel)
★ 8-12 Mbit/s — a medium to high-definition digital channel with DVD quality data (equivalent to HBO-HD)
★ 18-20 Mbit/s — a high-definition digital channel at 1080i (equivalent to Discovery HD)
Another example, Network cards and cables are typically available in 10/100/1000 Mbit/s. This means they can support a transfer rate of 10 or 100 or 1000 Mbit/s.
Interface and device speeds
| Interface | Megabits per second | Megabytes per second |
|---|---|---|
| USB, Low speed (1.0) | 1.5 Mbit/s | 0.18 MB/s |
| USB, Full speed (1.1) | 12 Mbit/s | 1.5 MB/s |
| USB, Hi speed (2.0) | 480 Mbit/s | 60 MB/s |
| Firewire 400 (IEEE 1394) | 400 Mbit/s | 50 MB/s |
| Firewire 800 (IEEE 1394b) | 800 Mbit/s | 100 MB/s |
| CD-ROM, 1x | 1.2 Mbit/s | 0.15 MB/s |
| CD-ROM, 52x | 62.4 Mbit/s | 7.8 MB/s |
| DVD-ROM, 1x | 11.1 Mbit/s | 1.3 MB/s |
| DVD-ROM, 16x | 177.3 Mbit/s | 21.1 MB/s |
| BD-ROM, 1x | 54.0 Mbit/s | 6.75 MB/s |
| SATA I | 1200 Mbit/s | 150 MB/s |
| SATA II | 2400 Mbit/s | 300 MB/s |
See also
★ Megabit, a unit of information ''storage'' (as opposed to ''transmission'')
★ List of device bandwidths
★ Gigabit Ethernet
★ Megabyte per second (MB/s or MBps)
★ Gigabit per second (Gbit/s or Gbps)
★ Gigabyte per second (GB/s or GBps)
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