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{"id":2118868,"date":"2017-12-08T16:13:30","date_gmt":"2017-12-08T15:13:30","guid":{"rendered":"https:\/\/www.phonandroid.com\/?p=2118868"},"modified":"2018-03-04T20:55:54","modified_gmt":"2018-03-04T19:55:54","slug":"snapdragon-845-vs-exynos-9810-vs-kirin-970-vs-apple-a11-le-comparatif-ultime","status":"publish","type":"post","link":"https:\/\/www.phonandroid.com\/snapdragon-845-vs-exynos-9810-vs-kirin-970-vs-apple-a11-le-comparatif-ultime.html","title":{"rendered":"Snapdragon 845 vs Exynos 9810 vs Kirin 970 vs Apple A11 : le comparatif ultime"},"content":{"rendered":"

Du Snapdragon au Kirin 970 en passant par l'Exynos 9810, trois nouveaux SoC font ou vont faire leur apparition dans les smartphones de 2017\/2018. La fiche technique de ces derniers n'est pas toujours connue \u00e0 100%, \u00e0 l'image du Samsung Exynos 9810, mais une chose et s\u00fbre, tous ont pour mission \u00e0 la fois de d\u00e9velopper l'intelligence artificielle embarqu\u00e9e, de diminuer la consommation \u00e9nerg\u00e9tique, et surtout de donner le change au SoC Apple A11 dont les performances surpassent encore la concurrence Android.\u00a0<\/strong><\/p>\n

\"snapdragon<\/p>\n

Vous vous souvenez des benchmarks stratosph\u00e9riques des derniers iPhone ? Apple a surpris au cours de ces derni\u00e8res ann\u00e9es en acqu\u00e9rant une v\u00e9ritable expertise en mati\u00e8re de SoC. La derni\u00e8re illustration en date, c'est sans conteste la puce A11 Bionic. Non seulement elle performe de mani\u00e8re excellente en mode single core <\/em>dans les benchmarks<\/a>, bien mieux que les plateformes concurrentes. Mais en prime, elle d\u00e9passe aussi largement la concurrence en multi-coeurs. Cette puce 64 bits grav\u00e9e en 10nm est \u00e9galement l'une des toutes premi\u00e8res \u00e0 inclure un neural processing unit<\/em> (NPU) d\u00e9di\u00e9 \u00e0 l'intelligence artificielle.<\/p>\n

Snapdragon 845 vs Exynos 9810 vs Kirin 970 vs Apple A11 : qui est le meilleur ?<\/h2>\n

Forc\u00e9ment cela a fait r\u00e9agir Qualcomm, Samsung et HiSilicon, les trois leaders du secteur. Le premier vient de d\u00e9voiler son Snapdragon 845, Samsung a donn\u00e9 quelques informations sur un Exynos 9810, et on trouve d\u00e9j\u00e0 quelques smartphones sous Kirin 970. Ces puces s'alignent sur les fondamentaux du A11 Bionic<\/a> : NPU, gravure en 10nm, et performances en hausse. Ce qui diff\u00e9rencie surtout ces trois SoC c'est justement leur approche en mati\u00e8re de machine learning<\/em>, et les performances en termes de CPU et de GPU.<\/p>\n

Les 8 coeurs Kryo 835 du Snapdragon 845<\/a> par exemple sont des ARM cortex A75 et A55 customis\u00e9s. Qualcomm est le seul des trois \u00e0 introduire la derni\u00e8re architecture ARMv8.2 qui devrait introduire des gains de performances significatifs et peut-\u00eatre m\u00eame lui donner un avantage. Samsung en est de son c\u00f4t\u00e9 \u00e0 sa 3e g\u00e9n\u00e9ration de coeurs enti\u00e8rement maison, les Mangoose. Il pourrait profiter de son Exynos 9810 pour tenter lui aussi d'\u00eatre le premier \u00e0 d\u00e9tr\u00f4ner les benchmarks de l'A11 Bionic. Quant \u00e0 la filiale de Huawei HiSilicon, son Kirin 970 utilise des coeurs con\u00e7us par ARM sans modification ou optimisation particuli\u00e8re (4x A73 et 4x A53).<\/p>\n

HiSilicon a en effet pr\u00e9f\u00e9r\u00e9 se concentrer sur son\u00a0neural\u00a0processing unit\u00a0<\/i>pour l'int\u00e9grer dans les smartphones haut de gamme comme le Huawei Mate 10 Pro<\/a>. Une approche diff\u00e9rente de celle de Qualcomm : la firme utilise sont nouveau\u00a0Digital Signal\u00a0Processeur\u00a0<\/i>(DSP) baptis\u00e9 Hexagon en guise de NPU. Le S845 l'utilise aussi bien pour l'audio et l'imagerie que le machine learning<\/em>. De quoi imaginer des performances moins \u00e9lev\u00e9es ? C'est encore trop t\u00f4t pour le dire. Quant \u00e0 Samsung on manque l\u00e0 encore d'informations sur de telles caract\u00e9ristiques. En face, la puce Apple A11 Bionic inclut une enclave d\u00e9di\u00e9e \u00e0 l'intelligence artificielle, le\u00a0Neural Engine<\/em>. Peu de d\u00e9tails sont connus sur son fonctionnement.<\/p>\n