{"id":134148,"date":"2022-01-17T05:22:44","date_gmt":"2022-01-17T13:22:44","guid":{"rendered":"https:\/\/lifeboat.com\/blog\/2022\/01\/amds-upcoming-3d-v-cache-shown-to-improve-bandwidth-with-minimal-latency-increase"},"modified":"2022-01-17T05:22:44","modified_gmt":"2022-01-17T13:22:44","slug":"amds-upcoming-3d-v-cache-shown-to-improve-bandwidth-with-minimal-latency-increase","status":"publish","type":"post","link":"https:\/\/lifeboat.com\/blog\/2022\/01\/amds-upcoming-3d-v-cache-shown-to-improve-bandwidth-with-minimal-latency-increase","title":{"rendered":"AMD\u2019s upcoming 3D V-Cache shown to improve bandwidth with minimal latency increase"},"content":{"rendered":"<p><\/p>\n<p><iframe style=\"display: block; margin: 0 auto; width: 100%; aspect-ratio: 4\/3; object-fit: contain;\" src=\"https:\/\/www.youtube.com\/embed\/i7qr0wC9W9I?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope;\n   picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Highly anticipated: Speculation around AMD\u2019s new 3D V-Cache technology has swirled ever since Dr. Lisa Su gave us a sneak peek at Computex 2021. Since then, AMD and tech enthusiasts have remained cautiously optimistic regarding claims that the new chiplet-stacking approach can yield substantial performance gains with minimal impact to latency, responsiveness, and overall functionality. A recent test of an EPYC processor with V-Cache is giving early indication that AMD\u2019s performance uplift claims may just hold true.<\/p>\n<p>No one was quite sure what to expect when AMD announced their <a href=\"https:\/\/www.techspot.com\/news\/89890-amd-shows-off-stacked-3d-v-cache-chiplets.html\">3D V-Cache technology<\/a> at Computex last summer. While some enthusiasts saw the substantial increase in <a href=\"https:\/\/www.techspot.com\/article\/2066-cpu-l1-l2-l3-cache\/\">cache<\/a> as an exciting development, others in the community found themselves upset that the new offerings would not offer substantial increases in clock speed, improvements in power draw, etc. Last Friday tech news outlet Chips and Cheese published <a href=\"https:\/\/chipsandcheese.com\/2022\/01\/14\/amds-v-cache-tested-the-latency-teaser\/\">results<\/a> of their initial testing with one of AMD\u2019s new Milan-X processors with 3D V-Cache, the server-oriented EPYC 7V73X. And so far, things look promising.<\/p>\n<p>According to the site\u2019s summary, AMD has managed to substantially increase a processor\u2019s cache size (768MB) in comparison to the previous Milan family of processors (256MB). Testing by Chips and Cheese reports impressive performance from the stacked CPU and much larger L3 cache without incurring any significant increase to cache and memory latency. Initial testing shows the latency penalty keeping the increase somewhere between three to four cycles.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Highly anticipated: Speculation around AMD\u2019s new 3D V-Cache technology has swirled ever since Dr. Lisa Su gave us a sneak peek at Computex 2021. Since then, AMD and tech enthusiasts have remained cautiously optimistic regarding claims that the new chiplet-stacking approach can yield substantial performance gains with minimal impact to latency, responsiveness, and overall functionality. [\u2026]<\/p>\n","protected":false},"author":662,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1523],"tags":[],"class_list":["post-134148","post","type-post","status-publish","format-standard","hentry","category-computing"],"_links":{"self":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/134148","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/users\/662"}],"replies":[{"embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/comments?post=134148"}],"version-history":[{"count":0,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/posts\/134148\/revisions"}],"wp:attachment":[{"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/media?parent=134148"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/categories?post=134148"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lifeboat.com\/blog\/wp-json\/wp\/v2\/tags?post=134148"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}