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 25.03.2008   Intel lancia le cpu a 45nm e hi-k metal gate Xeon L5420 e L5410
 

Intel Corporation ha lanciato due nuovi processori quad-core low-voltage di classe Xeon, indirizzati alla configurazione di sistemi di tipo server e workstation. Si tratta dei chip Xeon L5420 (clock del core a 2.50GHz con cache L2 da 12 Mb e FSB a 1333MHz) e Xeon L5410 (clock del core a 2.33GHz con cache L2 da 12 Mb e FSB a 1333MHz).

Alla base del ridottissimo consumo di potenza, feature primaria delle due cpu, che il produttore quantifica in 50W per entrambi, vi è il processo di fabbricazione a 45nm, che si avvale della tecnologia prorietaria ad alta costante k con gate metallico (hi-k metal gate). I transistor inclusi nei processori di questo tipo si differenziano da quelli tradizionali per l'elettrodo di gate, che è basato su uno strato di ossido di afnio con elevato coefficiente k - che svolge il ruolo di isolante - ed uno strato costituito da una miscela di metalli, su cui Intel è sempre stata piuttosto vaga. Ciò consente di innalzare la frequenza di clock pur riducendo la potenza elettrica dissipata. Ancora, la dimensione della cache L2 può essere raddoppiata rispetto alla generazione precedente: ne consegue un boost prestazionale pari a circa il 25%.

I system bulder che hanno già avviato la produzione di soluzioni basate sui nuovi Xeon L5420 e Xeon L5410 sono i seguenti: Asus, Dell, Fujitsu, Fujitsu-Siemens, Gigabyte, HP, Hitachi, IBM, Microstar, NEC, Quanta, Rackable, Supermicro, Tyan e Verari.

Al momento, con i nuovi Xeon L5420 e Xeon L5410, sono 35 i processori a 45nm e high-k metal gate rilasciati da Intel per gli ambiti server, desktop e notebook. Il prezzo della cpu Xeon L5420 in stock da 1000 unità è pari a $380 mentre la variante Xeon L5410 costa $320.

SANTA CLARA, Calif., March 25, 2008 – Intel Corporation has further increased its energy-efficient performance lead today with the introduction of two low-voltage 45 nanometer (nm) processors for servers and workstations that run at 50 watts, or just 12.5 watts per core and frequencies as high as 2.50 GigaHertz (GHz). The Quad-Core Intel® Xeon® Processor L5400 Series takes advantage of Intel's unique 45nm manufacturing capabilities and reinvented transistor formula that combine to boost performance and reduce power consumption in data centers.

Benefiting companies with power-constrained, high-compute density environments, the Quad-Core Intel Xeon L5400 processors are as much as 25 percent faster1 and have a 50 percent larger cache size than Intel's previous-generation, low-voltage Quad-Core Intel Xeon processors, while at the same time maintaining the low 50-watt thermal envelope. The quad-core L5420 and L5410 processors run at 2.50 GHz and 2.33 GHz, respectively, and feature a unique 12 megabytes (MB) of on-die cache and dedicated 1333 MHz front side buses (FSB).

"Using Intel's hafnium-infused high-k metal gate transistors has allowed our quad-core 45nm low-voltage server chips to attain new heights in power-efficient performance," said Kirk Skaugen, vice president and general manager of Intel's Server Platforms Group. "These chips deliver the speed needed while using meager amounts of energy."

A number of systems vendors are supporting the L5400 series and L5210, including Asus, Dell, Fujitsu, Fujitsu-Siemens, Gigabyte, HP, Hitachi, IBM, Microstar, NEC, Quanta, Rackable, Supermicro, Tyan and Verari. Next quarter, Intel will also begin shipping a new dual-core low-voltage processor that will boast a 40-watt rating and clock speed of 3 GHz, with a 6 MB cache size and a 1333 MHz FSB. Intel is also extending the existing Quad-Core Intel Xeon processor 5400 series for embedded market segments by offering the Quad-Core Intel Xeon processor L5410 with support for a 7-year life cycle.

Since unveiling the industry's first 45nm processors last November, Intel today is shipping more than 35 different server, desktop and notebook processors with Intel's Hafnium-based high-k metal gate formula and 45nm technology.

Pricing and Availability
Intel Quad-Core Intel Xeon processor L5420 2.50GHz 1333MHz 50W $380
Intel Quad-Core Intel Xeon processor L5410 2.33GHz 1333MHz 50W $320

In 1,000-unit quantities.





Source: Intel Press Release
Links

Tags: 45nm  |  cpu  |  gate  |  high-k metal gate  |  intel  |  xeon

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