About: Memory latency

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Memory latency is the time (the latency) between initiating a request for a byte or word in memory until it is retrieved by a processor. If the data are not in the processor's cache, it takes longer to obtain them, as the processor will have to communicate with the external memory cells. Latency is therefore a fundamental measure of the speed of memory: the less the latency, the faster the reading operation.

Attributes	Values
rdfs:label	Memory latency (en)
rdfs:comment	Memory latency is the time (the latency) between initiating a request for a byte or word in memory until it is retrieved by a processor. If the data are not in the processor's cache, it takes longer to obtain them, as the processor will have to communicate with the external memory cells. Latency is therefore a fundamental measure of the speed of memory: the less the latency, the faster the reading operation. (en)
foaf:depiction
dct:subject	Computer memory
Wikipage page ID	5016872 (xsd:integer)
Wikipage revision ID	1086109190 (xsd:integer)
Link from a Wikipage to another Wikipage	Memory bandwidth Interleaved memory SDRAM latency Multi-channel memory architecture Computer memory Byte CAS latency CPU cache Throughput Latency (engineering) Computer memory Central processing unit Burst mode (computing) SDRAM burst ordering
Link from a Wikipage to an external page	https://web.archive.org/web/20190625134739/http:/www.devhardware.com/c/a/Memory/Effects-of-Memory-Latency/ https://web.archive.org/web/20190913144156/http:/www.dewassoc.com/performance/memory/memory_latency.htm
sameAs	Memory latency Memory latency
dbp:wikiPageUsesTemplate	dbt:More_citations_needed dbt:More_footnotes dbt:Multiple_issues dbt:Reflist dbt:Short_description dbt:Comp-eng-stub dbt:Compu-hardware-stub
thumbnail	wiki-commons:Special:FilePath/Memory5EZ.jpg?width=300
Link from a Wikipa... related subject.	Memory timings dbpedia-el:Λανθάνων_χρόνος_προσπέλασης_μνήμης Memory timings Memory timings dbpedia-ru:Тайминги
has abstract	Memory latency is the time (the latency) between initiating a request for a byte or word in memory until it is retrieved by a processor. If the data are not in the processor's cache, it takes longer to obtain them, as the processor will have to communicate with the external memory cells. Latency is therefore a fundamental measure of the speed of memory: the less the latency, the faster the reading operation. Latency should not be confused with memory bandwidth, which measures the throughput of memory. Latency can be expressed in clock cycles or in time measured in nanoseconds. Over time, memory latencies expressed in clock cycles have been fairly stable, but they have improved in time. (en)
prov:wasDerivedFrom	wikipedia-en:Memory_latency?oldid=1086109190&ns=0
page length (characters) of wiki page	2096 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Memory_latency
is Link from a Wikipage to another Wikipage of	Memory-bound function Memory bandwidth Memory controller Memory divider Benchmark (computing) List of interface bit rates DNA Intel Atom Power10 Out-of-order execution Graphics Core Next Multi-channel memory architecture Computational RAM Fully Buffered DIMM Parallel computing Micro-thread (multi-core) Latency (engineering) DDR2 SDRAM Direct memory access Graphics processing unit Registered memory Hash table HyperTransport Vector processor Access time Solid-state drive Sony Toshiba IBM Center of Competence for the Cell Processor Spectre (security vulnerability) Random-access memory System on a chip Sixth generation of video game consoles Sun4d Socket G3 Memory Extender Simultaneous multithreading
is foaf:primaryTopic of	wikipedia-en:Memory_latency

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