{"id":4931,"date":"2013-11-05T11:45:02","date_gmt":"2013-11-05T11:45:02","guid":{"rendered":"https:\/\/www.techopedia.com\/definition\/central-processing-unit-cache\/"},"modified":"2013-11-25T12:45:59","modified_gmt":"2013-11-25T12:45:59","slug":"central-processing-unit-cache","status":"publish","type":"definition","link":"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache","title":{"rendered":"Central Processing Unit Cache"},"content":{"rendered":"<h2><span id=\"what_does_central_processing_unit_cache_mean\">What Does Central Processing Unit Cache Mean?<\/span><\/h2>\n<p>Central processing unit cache (CPU cache) is a type of cache memory that a computer processor uses to access data and programs much more quickly than through host memory or random access memory (RAM). It enables storing and providing access to frequently used programs and data.<\/p>\n<p>CPU cache is also known as processor cache.<\/p>\n<h2><span id=\"techopedia_explains_central_processing_unit_cache\">Techopedia Explains Central Processing Unit Cache<\/span><\/h2>\n<p>The CPU cache is one of the most commonly used types of cache memory. Typically, the CPU cache is embedded directly on or close to the processor. <\/p>\n<p>When looking for data or a program, the CPU will first check in the CPU cache. The CPU cache generally has less capacity than the main RAM, but due to its better internal structure and close proximity to the CPU, it has faster processing capabilities; thus, it delivers requested data more quickly. <\/p>\n<p> There are three major types of CPU cache: <\/p>\n<ul>\n<li> Instruction cache<\/li>\n<li><span style=\"font-size: 10pt\">Data cache <\/span><\/li>\n<li><span style=\"font-size: 10pt\">Translation lookaside buffer (TLB)<\/span><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>What Does Central Processing Unit Cache Mean? Central processing unit cache (CPU cache) is a type of cache memory that a computer processor uses to access data and programs much more quickly than through host memory or random access memory (RAM). It enables storing and providing access to frequently used programs and data. CPU cache [&hellip;]<\/p>\n","protected":false},"author":7813,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_lmt_disableupdate":"","_lmt_disable":"","om_disable_all_campaigns":false,"footnotes":""},"definitioncat":[217],"class_list":["post-4931","definition","type-definition","status-publish","format-standard","hentry","definitioncat-hardware"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.8 (Yoast SEO v23.8) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Central Processing Unit Cache (CPU Cache)? - Definition from Techopedia<\/title>\n<meta name=\"description\" content=\"This definition explains the meaning of Central Processing Unit Cache and why it matters.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Central Processing Unit Cache\" \/>\n<meta property=\"og:description\" content=\"This definition explains the meaning of Central Processing Unit Cache and why it matters.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\" \/>\n<meta property=\"og:site_name\" content=\"Techopedia\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/techopedia\/\" \/>\n<meta property=\"article:modified_time\" content=\"2013-11-25T12:45:59+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@techopedia\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\"},\"author\":{\"name\":\"Margaret Rouse\",\"@id\":\"https:\/\/www.techopedia.com\/#\/schema\/person\/f5dd538e31ee352d105b8af36c4268a5\"},\"headline\":\"Central Processing Unit Cache\",\"datePublished\":\"2013-11-05T11:45:02+00:00\",\"dateModified\":\"2013-11-25T12:45:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\"},\"wordCount\":165,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.techopedia.com\/#organization\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache#respond\"]}],\"articleSection\":\"\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\",\"url\":\"https:\/\/www.techopedia.com\/definition\/6659\/central-processing-unit-cache-cpu-cache\",\"name\":\"What is Central Processing Unit Cache (CPU Cache)? 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