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 27.05.2009   Da Intel una preview delle cpu Xeon a 8 core Nehalem-EX
 

Intel ha presentato in anteprima il processore Xeon di nuova generazione a cui stato dato il nome in codice di Nehalem-EX. Si tratta di una cpu, o meglio di una famiglia di cpu, destinata all'equipaggiamento dei server high-end basati sull'architettura Nehalem.

Alla base del nuovo Xeon Nehalem-EX vi una progettazione che prevede l'integrazione di 8 core e 24MB di cache di secondo livello, o L2, sul die e il pieno supporto della tecnologia HyperThreading che permette l'esecuzione di 16 thread simultaneamente.

Intel prevede per i nuovi Nehalem-EX un successo che, per ambito e caratteristiche (in breve RAS, Reliability, Availability e Serviceability), sar molto simile a quello che ha caratterizzato il destino dei processori Itanium.

Rispetto agli Xeon attualmente sul mercato (ovvero della linea 7400), i Nehalem-EX rendono disponibile una banda del canale di interconnessione con la memoria fino a nove volte superiore, possono gestire fino a 16 slot di RAM per socket e supportano la tecnologia QuickPath Interconnect.

Ma Nehalem-EX innanzitutto una piattaforma altamente scalabile, dal momento che possono essere realizzate motherboard con un numero di socket variabile da uno a otto, il che equivale a rendere possibile l'esecuzione di 8x(2x8) = 128 theread simultaneamente.

I processori Nehalem-EX entreranno in produzione nella seconda parte del 2009.


Video: Intel and IBM demonstrate 128-Thread Nehalem-EX Server


SANTA CLARA, May 26, 2009 Intel Corporation today previewed a new Intel Xeon processor codenamed "Nehalem-EX." The processor will be at the heart of the next generation of intelligent and expandable high-end Intel server platforms, which will deliver a number of new technical advancements and boost enterprise computing performance.

In production later this year, the Nehalem-EX processor will feature up to eight cores inside a single chip supporting 16 threads and 24Mb of cache. Its performance increase will be dramatic, posting the highest-ever jump from a previous generation processor.1

Nehalem-EX will add new reliability, availability and serviceability (RAS) features traditionally found in the company's Intel Itanium processor family, such as Machine Check Architecture (MCA) Recovery. Together with new levels of performance, both high-end processors should speed the move away from more expensive, proprietary RISC-processor based systems.

Ideal for server consolidation, virtualized applications, data demanding enterprise applications and technical computing environments, Nehalem-EX will offer up to nine times the memory bandwidth1 of the previous-generation Intel Xeon 7400 platform. Nehalem-EX will also double the memory capacity with up to 16 memory slots per processor socket, and offer four high-bandwidth QuickPath Interconnect links. Nehalem-EX will provide tremendous scalability, from large-memory two-socket systems through eight-socket systems capable of processing 128 threads simultaneously without the need for third-party chips to "glue" the platform together. Additional scalability options including greater sockets counts will be possible with third-party solutions.

Intel delivers the most complete server portfolio: The Xeon 5500 series delivers leading performance, energy efficiency and flexibility for infrastructure applications. ++Nehalem-EX will greatly improve on today's Intel Xeon 7400 scalable performance, flexibility and advanced RAS features for data demanding enterprise applications and server consolidation. Itanium delivers the highest scalability and most advanced RAS features for the most demanding environments.

The Nehalem-EX Advantage

From RISC to Reward: Customers Migrating to Xeon- and Itanium-based platforms
With new RAS capabilities for high-end enterprises, Nehalem-EX can accelerate IT adoption of Intel-based platforms over RISC-based platforms by delivering a lower total cost of ownership, higher performance, lower electricity bills and the ability to standardize on a flexible IT environment. The Intel Itanium processor delivers mainframe-class reliability for mission-critical workloads and enables the greatest scalability, especially for highly threaded workloads. Itanium offers greater than eight-socket system configurations and is ideal for applications that access the largest memory pools.

Availability
Nehalem-EX is scheduled for production in the second half of 2009.

For more information: http://download.intel.com/pressroom/pdf/nehalem-ex.pdf (PDF 5.3MB)





Source: Intel Press Release
Links

Tags: core  |  cpu  |  intel  |  nehalem-ex  |  preview  |  xeon

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