{"id":697514,"date":"2022-01-13T14:55:00","date_gmt":"2022-01-13T13:55:00","guid":{"rendered":"https:\/\/www.tomshardware.fr\/?p=697514"},"modified":"2023-06-22T16:58:15","modified_gmt":"2023-06-22T14:58:15","slug":"micron-lance-les-premiers-ssd-qlc-a-176-couches","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/micron-lance-les-premiers-ssd-qlc-a-176-couches\/","title":{"rendered":"Micron lance les premiers SSD QLC 176 couches"},"content":{"rendered":"\n

Apr\u00e8s des SSD PCIe 4.0 dot\u00e9s de m\u00e9moire NAND 3D TLC 176 couches<\/a>, Micron pr\u00e9sente une nouvelle s\u00e9rie, cette fois bas\u00e9e sur de la m\u00e9moire QLC (quad-level cell<\/em>) 176 couches. L\u2019entreprise argue que sont les premiers SSD de ce type. Il s’agit de la s\u00e9rie Micron 2400.<\/p>\n\n\n\n

\"Image<\/a><\/figure><\/div>\n\n\n\n

La soci\u00e9t\u00e9 propose ses SSD 2400 sous trois formats M.2 : 22×30 mm, 2x42mm et 22x80mm. En ce qui concerne les capacit\u00e9s, trois choix \u00e9galement : 512 Go, 1 To et 2 To. Micron annonce des performances jusqu’\u00e0 deux fois sup\u00e9rieures \u00e0 celles de la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente (Micron 2210) ainsi qu\u2019une consommation d’\u00e9nergie en veille active inf\u00e9rieure de 50 %. Par rapport au QLC \u00e0 96 couches, le QLC \u00e0 176 couches offre un d\u00e9bit 33 % sup\u00e9rieur et une r\u00e9duction de la latence en lecture de 24 %. Concr\u00e8tement, les vitesses de lecture \/ \u00e9criture s\u00e9quentielles s\u2019\u00e9l\u00e8vent \u00e0 4500 Mo\/s et 4000 Mo\/s respectivement pour les SSD 2400 d\u2019une capacit\u00e9 de 2 To. Les d\u00e9bits d\u2019\u00e9criture et de lecture al\u00e9atoires sont de 650 000 et 700 000 IOPS. C\u00f4t\u00e9 endurance, c\u2019est une base de 150 TBW (TeraBytes Writing<\/em>) par tranche de 512 Go. Les sp\u00e9cifications sont rassembl\u00e9es dans le tableau ci-dessous.<\/p>\n\n\n\n

\"Image<\/a><\/figure><\/div>\n\n\n\n

Contr\u00f4leur Phison E26 : jusqu\u2019\u00e0 12 Go\/s<\/a><\/strong><\/p>\n\n\n\n

Des solutions “abordables”<\/h2>\n\n\n\n

Vous l\u2019avez constat\u00e9, ces SSD ne sont pas les plus v\u00e9loces du march\u00e9 et miseront certainement sur leur rapport prix \/ capacit\u00e9 pour s\u00e9duire les acheteurs.<\/p>\n\n\n\n

Jeremy Werner, vice-pr\u00e9sident et directeur g\u00e9n\u00e9ral de la division Stockage de Micron, d\u00e9clare : “Les SSD 2400 de Micron s’appuient sur notre leadership dans l’industrie de la NAND 176 couches pour mener la transition vers le stockage QLC. En renfor\u00e7ant notre leadership sur ce march\u00e9, nous nous attendons \u00e0 ce que les nouveaux SSD 2400 PCIe Gen4 acc\u00e9l\u00e8rent consid\u00e9rablement l’adoption du QLC dans les appareils clients, car ils permettent des options de conception plus larges et de grandes capacit\u00e9s \u00e0 des prix plus abordables.”<\/em><\/p>\n\n\n\n

Nous ignorons les tarifs pour le moment.<\/p>\n\n\n\n

Source : Micron<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Pas les plus v\u00e9loces des SSD, mais un rapport prix \/ capacit\u00e9 qui devrait \u00eatre attractif.<\/p>","protected":false},"author":87,"featured_media":697517,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[487,4068,4073],"tags":[496],"hubs":[],"class_list":["post-697514","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualite","category-informatique","category-ssd","tag-stockage"],"acf":{"display_mode":"medium-img","post_show_excerpt":true,"post_source":"","hide_sidebar":false,"hide_advertising":false},"yoast_head":"\nMicron lance les premiers SSD QLC 176 couches<\/title>\n<meta name=\"description\" content=\"Pas les plus v\u00e9loces des SSD, mais un rapport prix \/ capacit\u00e9 qui devrait \u00eatre attractif.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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