data transfer rate

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data transfer rate

(Or "throughput") The ammount of data transferred in one direction over a link divided by the time taken to transfer it, usually expressed in bits or bytes per second.

Where data transfer is not continuous throughout the given time interval, the data transfer rate is thus an average rate that will be lower than the peak rate. The peak or maximum possible rate may itself be lower than the capacity of the communication channel used if the channel is shared, or part of the signal is not considered as data, e.g. checksum or routing information.

The other important characteristic of a channel is its latency.
This article is provided by FOLDOC - Free Online Dictionary of Computing (

data rate

(1) The speed at which data is transferred within the computer or between a peripheral device and the computer, measured in bytes per second. See transfer rate and space/time.

(2) The speed at which audio and video files are encoded (compressed), measured in bits per second (see bit rate).

(3) The transmission speed of a network. For example, 100Base-T Ethernet is rated at 100 Mbps (megabits per second). Also called "bit rate." See space/time.
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References in periodicals archive ?
Tatar also said, "The data transfer rate is the most important specification a customer should check before buying a CD-ROM drive...the faster the data transfer rate, the faster a multimedia application runs.
SAS supports data transfer rates of up to 3 Gb/s and full duplex, point-to-point connections so that each drive has a dedicated connection to the host.
For example, the data transfer rate for DLT drives is 5MB per second while that of the IBM 3590 Magstar is 9MB per second, a data-transfer rate that no optical media and drives and no low-cost magnetic storage media and drives can match.
In addition to its speedy 30OKB/second data transfer rate, the Multispin 38 is Multisession Kodak Photo CD capable and sports an average access time of 400 milliseconds.
But performance is more than access speed and data transfer rates. The driver software, which mediates between the drive and the CPU is another factor.
The first record, the 186Gbps data transfer rate (~23.25GBps) was achieved in a memory-to-memory transfer, while the second, 60Gbps (~7.5GBps) was achieved in a disk-to-disk transfer.
The memory board design provides a data transfer rate of up to 20 MB/sec.
Hitachi's second-generation 7200 RPM 2.5-inch product offers a 67-percent storage-capacity increase and a 33-percent performance improvement (sustained data transfer rate) over the previous generation.
The 300GB model has a spindle speed of up to 10,000 rpm and an internal data transfer rate of 132MB/s.
The company claims that the call represented the world's first call using HSPA+ and that a data transfer rate of 20Mb/s was achieved in a 5MHz channel.
The current generation DDR2 devices mounted on the DIMMs each have a CAS latency (CL) of 3-4-5, a burst length of 4 or 8 and 1.8 Volt operation with a data transfer rate of up to 533 Megabits per second (Mbps).