{"id":29044,"date":"2021-05-26T14:12:04","date_gmt":"2021-05-26T20:12:04","guid":{"rendered":"https:\/\/goldenti.com\/site\/?p=29044"},"modified":"2021-05-26T14:12:06","modified_gmt":"2021-05-26T20:12:06","slug":"por-que-amd-no-incluira-pcie-5-0-en-sus-cpu-zen-4-con-socket-am5","status":"publish","type":"post","link":"https:\/\/goldenti.com\/site\/por-que-amd-no-incluira-pcie-5-0-en-sus-cpu-zen-4-con-socket-am5\/","title":{"rendered":"\u00bfPor qu\u00e9 AMD no incluir\u00e1 PCIe 5.0 en sus CPU Zen 4 con socket AM5?"},"content":{"rendered":"\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/hardzone.es\/app\/uploads-hardzone.es\/2021\/03\/AMD-Ryzen-AM4.jpg\" alt=\"AMD-Ryzen-AM4\" \/><\/figure>\n\n\n\n<p>Entre la informaci\u00f3n que se ha filtrado estos d\u00edas sobre el futuro socket para las CPU y SoC de AMD est\u00e1 la confirmaci\u00f3n que al contrario de los que nos esper\u00e1bamos el socket AM5 no va a tener soporte para PCIe 5.0. Esta decisi\u00f3n por parte de los de Lisa Su tiene una motivaci\u00f3n estrat\u00e9gica en su lucha contra Intel y os la vamos a explicar en este art\u00edculo.<\/p>\n\n\n\n<p>El hecho que las CPU basadas en Zen 4 y por tanto bajo socket AM5 no vayan a tener soporte para PCIe 5.0 nos ha pillado por sorpresa, pero hay motivos por parte de AMD para boicotear la quinta generaci\u00f3n de la famosa interfaz en paralelo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>La clave est\u00e1 en el bus Infinity Fabric<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/hardzone.es\/app\/uploads-hardzone.es\/2021\/05\/AMD-Ryzen-Placa-Base.jpg\" alt=\"AMD Ryzen Placa Base\" class=\"wp-image-614025\" \/><\/figure><\/div>\n\n\n\n<p>Infinity Fabric es un concepto que no paramos de leer de boca de AMD en los \u00faltimos a\u00f1os, este consiste en una&nbsp;<strong>interconexi\u00f3n propietaria que AMD utiliza para comunicar los diferentes elementos en sus APU\/SoC, CPUs y GPUs entre s\u00ed<\/strong>. El<a href=\"https:\/\/hardzone.es\/reportajes\/que-es\/amd-infinity-fabric\/\">&nbsp;Infinity Fabric<\/a>&nbsp;es una versi\u00f3n extendida del HyperTransport con soporte para<a href=\"https:\/\/hardzone.es\/reportajes\/que-es\/coherencia-memoria\/\">&nbsp;coherencia con la memoria<\/a>, lo que permite entre otras cosas que la GPU integrada en sus APU pueda comunicarse directamente con el controlador de memoria sin tener que pasar por la IOMMU. Qu\u00e9 es lo que pasar\u00eda si utilizar\u00e1 PCI Express para comunicarse.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/hardzone.es\/app\/uploads-hardzone.es\/2019\/01\/AMD-Zen-Infinity-Fabric.jpg\" alt=\"AMD-Zen-Infinity-Fabric\" class=\"wp-image-286290\" \/><\/figure><\/div>\n\n\n\n<p>Una variante importante del Infinity Fabric es su variante IFOP, la cual es una interfaz externa que permite comunicar diferentes chips entre s\u00ed. Con el IFOP es posible comunicar una CPU y una GPU de manera directa sin necesidad del PCI Express y desde el momento en que se trata de una interfaz propietaria de AMD esto les permite vender de manera combinada sus CPUs y GPUs en conjunto para los fabricantes de port\u00e1tiles gaming. Con ello consiguen bloquear el acceso a las GPU de Intel y NVIDIA, asegurando un ecosistema puramente AMD.<\/p>\n\n\n\n<p>A esto hemos de a\u00f1adirle que AMD ha licenciado recientemente la radio WiFi de MediaTek con tal de no depender de las radios de Intel para los port\u00e1tiles con CPU y GPU de AMD.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u00bfPor qu\u00e9 AMD no quiere PCIe 5.0 en AM5?<\/strong><\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/hardzone.es\/app\/uploads-hardzone.es\/2021\/01\/PCIe-motherboard.jpg\" alt=\"Placa Base PCIe\" class=\"wp-image-544234\" \/><\/figure><\/div>\n\n\n\n<p>Una de las novedades que va a traer la quinta generaci\u00f3n del PCI Express&nbsp;<strong>es el a\u00f1adido del<\/strong><a href=\"https:\/\/hardzone.es\/reportajes\/que-es\/cxl-20\/\">&nbsp;<strong>protocolo CXL<\/strong><\/a>, el cual tiene un gran apoyo por parte de la industria y que entre otras cosas&nbsp;<strong>le a\u00f1ade un sistema de coherencia con el direccionamiento de memoria de la CPU<\/strong>. Dicho de otra forma, mientras que el Infinity Fabric de AMD le otorga un sistema de coherencia al HyperTransport el CXL lo hace con el PCIe.<\/p>\n\n\n\n<p>No sabemos si Intel har\u00e1 uso de PCI Express con CXL en sus GPU con arquitectura DG2, pero es muy posible que si que utilicen dicho protocolo. Por lo que el movimiento de AMD es claro, evitar que se monten port\u00e1tiles gaming que combinen sus CPU con las GPU de Intel.<\/p>\n\n\n\n<p>Desde la presentaci\u00f3n de sus AMD RX 6000 y su Smart Access Memory, un rebranding del PCIe Resizable BAR, que sabemos que AMD busca crear un ecosistema cerrado en PC basado solamente en sus productos. Intel por otro lado tambi\u00e9n est\u00e1 buscando hacer lo mismo y ambas en conjunto buscar\u00edan marginalizar la una a la otra. La decisi\u00f3n de AMD adem\u00e1s busca que su rival NVIDIA no lance tarjetas gr\u00e1ficas compatibles con PCIe 5.0.<\/p>\n\n\n\n<p><strong>Fuente:<\/strong> <a href=\"https:\/\/hardzone.es\/noticias\/procesadores\/amd-am4-no-pcie-5-motivos\/\" target=\"_blank\" rel=\"noreferrer noopener\">HardZone<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Entre la informaci\u00f3n que se ha filtrado estos d\u00edas sobre el futuro socket para las CPU [&hellip;]<\/p>\n","protected":false},"author":13,"featured_media":29045,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-29044","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00bfPor qu\u00e9 AMD no incluir\u00e1 PCIe 5.0 en sus CPU Zen 4 con socket AM5? 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