{"id":25179,"date":"2026-03-02T14:09:10","date_gmt":"2026-03-02T14:09:10","guid":{"rendered":"https:\/\/www.europesays.com\/be-fr\/25179\/"},"modified":"2026-03-02T14:09:10","modified_gmt":"2026-03-02T14:09:10","slug":"le-lg-gram-book-15-sacrifie-les-performances-du-processeur-pour-un-ventilateur-beaucoup-plus-silencieux","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/be-fr\/25179\/","title":{"rendered":"Le LG Gram Book 15 sacrifie les performances du processeur pour un ventilateur beaucoup plus silencieux"},"content":{"rendered":"<p>\t\t<a href=\"https:\/\/www.notebookcheck.biz\/fileadmin\/_processed_\/webp\/Notebooks\/LG\/Gram_15U55T\/grambook15feature2-q82-w2560-h.webp\" title=\"Le LG Gram Book 15 pourrait \u00eatre l&#039;un des ordinateurs portables de 15,6 pouces les plus silencieux de m\u00e9moire r\u00e9cente\" data-caption=\"Le LG Gram Book 15 pourrait \u00eatre l&#039;un des ordinateurs portables de 15,6 pouces les plus silencieux de m\u00e9moire r\u00e9cente [&lt;a class=&quot;dbg&quot; target=&quot;_blank&quot; href=&quot;fileadmin\/Notebooks\/LG\/Gram_15U55T\/grambook15feature2.jpg&quot;&gt;full resolution&lt;\/a&gt;]\" rel=\"nofollow noopener\" target=\"_blank\"><img decoding=\"async\" src=\"https:\/\/www.europesays.com\/be-fr\/wp-content\/uploads\/2026\/03\/csm_grambook15feature2_49e3564e28.jpg\" loading=\"lazy\" width=\"240\" height=\"181\" alt=\"Le LG Gram Book 15 pourrait \u00eatre l'un des ordinateurs portables de 15,6 pouces les plus silencieux de m\u00e9moire r\u00e9cente\"\/><\/p>\n<p>\u24d8 Notebookcheck<\/p>\n<p><\/a>Le LG Gram Book 15 pourrait \u00eatre l&rsquo;un des ordinateurs portables de 15,6 pouces les plus silencieux de m\u00e9moire r\u00e9cente<\/p>\n<p>Le Core Ultra 7 255U du LG peut \u00eatre aussi lent que l&rsquo;ancien Core Ultra 7 155U, m\u00eame en mode Performance, mais le bruit du ventilateur atteint \u00e0 peine 30 dB(A).<\/p>\n<p class=\"bodytext\">Bien que nous <a href=\"http:\/\/www.notebookcheck.net\/LG-Gram-Book-15-has-one-of-the-worst-IPS-displays-in-the-series.1236874.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">nous ne sommes pas tr\u00e8s fans de l&rsquo;affichage<\/a> du <a href=\"http:\/\/www.notebookcheck.net\/LG-Gram-Book-15U55T-laptop-review-Way-too-many-cut-corners.1233770.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">LG Gram Book 15<\/a>nous devons admettre que l&rsquo;ordinateur portable \u00e0 petit budget trouve un \u00e9quilibre int\u00e9ressant en ce qui concerne les performances et le bruit des ventilateurs. LG a opt\u00e9 pour un processeur plus lent par rapport \u00e0 d&rsquo;autres ordinateurs portables \u00e9quip\u00e9s du m\u00eame processeur afin de r\u00e9duire le bruit du ventilateur de mani\u00e8re significative.&#13;<\/p>\n<p class=\"bodytext\">Comme le montrent les tableaux de comparaison ci-dessous, le Gram Book 15 fonctionnerait 20 \u00e0 25 % plus lentement que le Lenovo IdeaPad 5 2-en-1 16 ou le ThinkPad T14s 2-en-1, tous \u00e9quip\u00e9s du m\u00eame processeur <a href=\"http:\/\/www.notebookcheck.net\/Intel-Core-Ultra-7-255U-Processor-Benchmarks-and-Specs.943065.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">Core Ultra 7 255U<\/a> . En contrepartie, le bruit du ventilateur du LG est nettement plus silencieux, avec seulement 28 dB(A) sur un fond silencieux de 25 dB(A), m\u00eame en cas de chargements exigeants, alors que les mod\u00e8les Lenovo susmentionn\u00e9s atteindraient plus de 41 dB(A) dans des conditions similaires. Les utilisateurs qui privil\u00e9gient le silence de fonctionnement aux performances brutes pr\u00e9f\u00e9reront donc l&rsquo;approche de LG.&#13;<\/p>\n<p class=\"bodytext\">La r\u00e9duction de 25 % des performances est n\u00e9anmoins difficile \u00e0 ignorer, car elle efface essentiellement les avantages que le Core Ultra 7 255U aurait eus par rapport \u00e0 la g\u00e9n\u00e9ration pr\u00e9c\u00e9dente Core Ultra 7 155U. Par exemple, les benchmarks CPU sont tr\u00e8s proches entre le Gram Book 15 et le <a href=\"http:\/\/www.notebookcheck.net\/HP-Envy-x360-15-Core-Ultra-7-convertible-review-Disappointing-for-the-price.984950.0.html\" target=\"_self\" class=\"internal-link\" rel=\"nofollow noopener\">HP Envy x360 15<\/a> m\u00eame si ce dernier est \u00e9quip\u00e9 de l&rsquo;ancien Core Ultra 7 155U. Un mode \u00ab\u00a0ventilateur maximum\u00a0\u00bb sur le mod\u00e8le LG aurait \u00e9t\u00e9 une fonctionnalit\u00e9 int\u00e9ressante pour les propri\u00e9taires qui pr\u00e9f\u00e8rent des performances plus rapides de temps en temps.<\/p>\n<p>\t<a href=\"\"><img decoding=\"async\" src=\"https:\/\/www.europesays.com\/be-fr\/wp-content\/uploads\/2026\/03\/csm_allen_f86567444b.png\" loading=\"lazy\" width=\"120\" height=\"120\" alt=\"Allen Ngo\"\/><\/a><a href=\"\"><img decoding=\"async\" src=\"https:\/\/www.europesays.com\/be-fr\/wp-content\/uploads\/2026\/02\/1771639450_615_csm_ninh_duy_ee54bf9777.jpg\" loading=\"lazy\" width=\"120\" height=\"120\" alt=\"DeepL \/ Ninh Duy\"\/><\/a>Translator: <a href=\"\" class=\"j_name\">Ninh Ngoc Duy<\/a> &#8211; Editorial Assistant  &#8211; 718822 articles published on Notebookcheck since 2008<\/p>\n","protected":false},"excerpt":{"rendered":"\u24d8 Notebookcheck Le LG Gram Book 15 pourrait \u00eatre l&rsquo;un des ordinateurs portables de 15,6 pouces les plus&hellip;\n","protected":false},"author":2,"featured_media":25180,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[13584,12,13,18,17,12634,1498,14087,13582,1289,11554,14088,1285,9354,1287,13585,1286,73,71,75,72,76,74,1288],"class_list":{"0":"post-25179","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-sciences-et-technologies","8":"tag-arrow-lake","9":"tag-be","10":"tag-be-fr","11":"tag-belgique","12":"tag-belgium","13":"tag-book","14":"tag-display","15":"tag-fan-noise","16":"tag-gram","17":"tag-informations-sur-des-ordinateurs-portatifs","18":"tag-lg","19":"tag-noise-level","20":"tag-nouvelles","21":"tag-performance","22":"tag-rapport","23":"tag-review","24":"tag-revues","25":"tag-science","26":"tag-science-and-technology","27":"tag-sciences","28":"tag-sciences-et-technologies","29":"tag-technologies","30":"tag-technology","31":"tag-test"},"share_on_mastodon":{"url":"","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/25179","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/comments?post=25179"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/25179\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media\/25180"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media?parent=25179"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/categories?post=25179"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/tags?post=25179"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}