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storage bandwidth

  1. The memory bandwidth is the data transfer rate of memory modules. It is the number of bits and bytes that can be transferred in a unit of time. The memory bandwidth therefore depends on the clock frequency and the word length. According to the bus widths, the word length can be 16, 32 or 64 bits, which corresponds to a word length of 2 bytes, 4 bytes or 8 bytes respectively. If the word length is multiplied by the clock frequency, the memory bandwidth is obtained, which is often also referred to simply as bandwidth. With a bus width of 4 bytes and a clock frequency of 200 MHz, this results in a memory bandwidth of 800 MB/s. The memory bandwidth is specified in bytes per second, kilobytes per second( KB/s), megabytes per second (MB/s) and gigabytes per second( GB/s).
  2. For digital oscilloscopes, the memory bandwidth or storable bandwidth takes the place of the bandwidth. This bandwidth value is determined from the sampling rate and the sampling theorem. According to this the maximum memory bandwidth is half the sampling rate. For example, a sampling rate of 500 MSample/s results in a memory bandwidth of 250 MHz.
Englisch: storage bandwidth
Updated at: 29.05.2010
#Words: 188
Links: memory, bandwidth (BW), data transfer rate (DTR), unit (U), clock (CLK)
Translations: DE

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