{"id":1255,"date":"2010-09-28T00:05:21","date_gmt":"2010-09-28T03:05:21","guid":{"rendered":"http:\/\/www.borealtech.com\/borealtech\/?p=1255"},"modified":"2010-09-28T00:05:21","modified_gmt":"2010-09-28T03:05:21","slug":"mhz-multinucleo","status":"publish","type":"post","link":"https:\/\/trgsolutions.lat\/en\/mhz-multinucleo\/","title":{"rendered":"El fin de la era de los MHz y el inicio de la era MultiNucleo"},"content":{"rendered":"

MultiNucleo: A pesar de ser algo de vieja data, muchos a\u00fan lo desconocen y contin\u00faan basando sus decisiones de compra en los MHz como la medida premier de desempe\u00f1o. Eso es un error.
\nLos MHz s\u00ed importan y mucho a la hora de establecer el desempe\u00f1o que ofrece un procesador. Pero cuidado. A esa afirmaci\u00f3n hay que hacerle doble-click. La afirmaci\u00f3n por s\u00ed sola es incompleta. Los MHz importan dentro de una misma familia de procesadores en la que todas las dem\u00e1s caracter\u00edsticas son id\u00e9nticas. En otras palabras, los MHz solos no son medida objetiva de desempe\u00f1o, por ejemplo, un procesador de 624MHz puede rendir menos que uno de 400 MHz.
\nHaciendo un poco de historia, hay que reconocer que los fabricantes de procesadores, de alguna forma, ha sido responsables de la confusi\u00f3n. Se han encargado de empujar los MHz a l\u00edmites insospechados. Pero esas mismas velocidades de reloj dejaron ver lo dif\u00edcil que es enfriar tantos MHz y desencadenaron una decisi\u00f3n crucial en esta industria: escalar el desempe\u00f1o mediante el uso de m\u00faltiples n\u00facleos.
\nSe dio inici\u00f3 as\u00ed a la era multi-n\u00facleos y termin\u00f3 la era de los MHz.
\nLa apuesta de entonces era simple. Acudiendo a f\u00edsica de transistores, si se reduc\u00edan los MHz en 15% en la CPU, el consumo de energ\u00eda se reduc\u00eda en 50%. As\u00ed, si se un\u00edan dos CPUs en un mismo chip, el consumo total de energ\u00eda de ambos volv\u00eda a ser el 100% original, pero ahora con el poder de dos procesadores el rendimiento crec\u00eda en un 70%. Y as\u00ed ocurrir\u00eda con 4 n\u00facleos, 8 n\u00facleos, etc.
\nEntonces, hoy en d\u00eda pensar en t\u00e9rminos de MHz \u00fanicamente al comprar dispositivo m\u00f3vil es un error. Aquellos viejos tiempos en que comprar una nueva dispositivo era asunto de escoger los MHz son cosa del pasado. La microarquitectura CORETEX de Texas Instruments anunciada a mediados de 2007 s\u00ed que hizo a\u00fan menos relevantes los MHz. Por ejemplo, un procesador de Texas Instrument Cortex A8 de 600 MHZ ofrece un poco mas del doble de desempe\u00f1o que un XScale PXA27x de 624 MHZseg\u00fan las pruebas realizadas mediante BDTI MARK PERFORMANXE. El primero alcanza los 4600 puntos de desempe\u00f1o con microarquitectura CoreTex y el segundo 2100 puntos con microarquitectura XScale, la antecesora de Core. Un empate t\u00e9cnico en Mhz con el doble de desempe\u00f1o.
\n\"\"<\/a>
\nImag\u00ednense ahora qu\u00e9 ocurre con el consumo de energ\u00eda en ese mismo ejemplo. Si disminuir en 15% los MHz bajaba el consumo en 50% como expliqu\u00e9, cu\u00e1l es el impacto al reducir los MHz en 50%? Consumos muy bajos de energ\u00eda que se traducen en Dispositivos M\u00f3viles con mayor duraci\u00f3n de la bater\u00eda.<\/p>","protected":false},"excerpt":{"rendered":"

MultiNucleo: A pesar de ser algo de vieja data, muchos a\u00fan lo desconocen y contin\u00faan basando sus decisiones de compra en los MHz como la medida premier de desempe\u00f1o. Eso es un error. Los MHz s\u00ed importan y mucho a la hora de establecer el desempe\u00f1o que ofrece un procesador. Pero cuidado. A esa afirmaci\u00f3n … <\/p>\n

Read more<\/a><\/p>","protected":false},"author":4,"featured_media":14943,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1781],"tags":[],"class_list":["post-1255","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33","resize-featured-image"],"yoast_head":"\nEl fin de la era de los MHz y el inicio de la era MultiNucleo<\/title>\n<meta name=\"description\" content=\"Muchos a\u00fan lo desconocen y contin\u00faan basando sus decisiones de compra en los MHz como la medida premier de desempe\u00f1o. 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