﻿{"id":30158,"date":"2013-07-31T07:28:30","date_gmt":"2013-07-31T05:28:30","guid":{"rendered":"http:\/\/iphonejailbreak.fr\/?p=30158"},"modified":"2013-07-31T07:29:02","modified_gmt":"2013-07-31T05:29:02","slug":"galaxy-s4-samsung-triche-dans-les-benchmarks","status":"publish","type":"post","link":"http:\/\/iphonejailbreak.fr\/?p=30158","title":{"rendered":"Galaxy S4 : Samsung triche dans les benchmarks"},"content":{"rendered":"<p><a href=\"http:\/\/iphonejailbreak.fr\/?attachment_id=30159\" rel=\"attachment wp-att-30159\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft  wp-image-30159\" alt=\"0\" src=\"http:\/\/iphonejailbreak.fr\/wp-content\/uploads\/2013\/07\/06.jpg\" width=\"252\" height=\"177\" srcset=\"http:\/\/iphonejailbreak.fr\/wp-content\/uploads\/2013\/07\/06.jpg 360w, http:\/\/iphonejailbreak.fr\/wp-content\/uploads\/2013\/07\/06-300x210.jpg 300w\" sizes=\"(max-width: 252px) 100vw, 252px\" \/><\/a><\/p>\n<p>Samsung a-t-il \u00e9t\u00e9 pris la main dans le sac ?<\/p>\n<p>Le site Anandtech a lev\u00e9 un tr\u00e8s int\u00e9ressant li\u00e8vre : histoire de bien para\u00eetre dans les benchmarks, le constructeur cor\u00e9en s\u2019est arrang\u00e9 pour tromper les outils de tests en augmentant la cadence du GPU de son processeur Exynos 5 Octa &#8211; celui-l\u00e0 m\u00eame qui sert de moteur \u00e0 une partie des Galaxy S4 (les autres, comme ceux distribu\u00e9s en France, embarquent un Snapdragon 800).<\/p>\n<p>Normalement, ce GPU carbure \u00e0 480 Mhz, mais durant les benchmarks, il augmente sa cadence \u00e0 533 Mhz !<\/p>\n<p>Et il en va de m\u00eame pour le processeur !<\/p>\n<p>Des tests r\u00e9alis\u00e9s sur les principaux outils de benchmarks (GLBenchmark, AnTuTu, Linpack et Quadrant) montrent que la fr\u00e9quence de l\u2019Exynos grimpe \u00e0 1,2 Ghz (celle du Cortex A15 du processeur), alors que sous GFXBench la fr\u00e9quence est de 500 Mhz (celle du Cortex A7 du SoC).<\/p>\n<p>Samsung a visiblement \u00ab oubli\u00e9 \u00bb de prendre en compte ce dernier\u2026 Anandtech est tomb\u00e9 sur un bout de code appel\u00e9 BenchmarkBooster, dont le r\u00f4le est de mettre le turbo lorsque le Galaxy S4 utilise des applications de benchmarks.<\/p>\n<p>Ces tests n\u2019ont pas vraiment de valeur autre qu\u2019indicative, puisque leurs r\u00e9sultats n\u2019indiquent en rien les performances de l\u2019appareil dans la vie r\u00e9elle.<\/p>\n<p>Mais le constructeur a sans doute voulu jouer de la cr\u00e9dulit\u00e9 de la client\u00e8le attach\u00e9e \u00e0 ce genre de consid\u00e9rations.<\/p>\n<p><a href=\"http:\/\/www.anandtech.com\/show\/7187\/looking-at-cpugpu-benchmark-optimizations-galaxy-s-4\"><span style=\"color: #0000ff\"><strong>source<\/strong><\/span><\/a><\/p>\n<p>merci \u00e0 mac plus de l&rsquo;info<\/p>\n<p><a href=\"http:\/\/forum.iphonejailbreak.fr\/index.php\/topic,8876.msg59402\/topicseen.html#msg59402\" rel=\"attachment wp-att-8946\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft size-full wp-image-8946\" alt=\"bouton blog \/ forum\" src=\"http:\/\/iphonejailbreak.fr\/wp-content\/uploads\/2012\/12\/bouton-blog1-copie.png\" width=\"200\" height=\"40\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Samsung a-t-il \u00e9t\u00e9 pris la main dans le sac ? Le site Anandtech a lev\u00e9 un tr\u00e8s int\u00e9ressant li\u00e8vre : histoire de bien para\u00eetre dans les benchmarks, le constructeur cor\u00e9en s\u2019est arrang\u00e9 pour tromper les outils de tests en augmentant la cadence du GPU de son processeur Exynos 5 Octa &#8211; celui-l\u00e0 m\u00eame qui sert &hellip; <\/p>\n<p><a class=\"more-link btn\" href=\"http:\/\/iphonejailbreak.fr\/?p=30158\">Lire la suite<\/a><\/p>\n","protected":false},"author":21,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[10],"tags":[10328,1270,6137,11140,11165],"_links":{"self":[{"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/posts\/30158"}],"collection":[{"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/users\/21"}],"replies":[{"embeddable":true,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30158"}],"version-history":[{"count":4,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/posts\/30158\/revisions"}],"predecessor-version":[{"id":30162,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=\/wp\/v2\/posts\/30158\/revisions\/30162"}],"wp:attachment":[{"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30158"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/iphonejailbreak.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}