ISSCC Poulson Preview Online- Abstract

Article: New Itanium Microarchitecture at ISSCC 2011
By: IntelUser2000 (Intel_user2000.delete@this.yahoo.ca), November 22, 2010 9:49 am
Room: Moderated Discussions
lubemark (lubemark@davide.it) on 11/22/10 wrote:
---------------------------
>now the abstract it's on line :
>
>http://isscc.org/doc/2011/isscc2011.advanceprogrambooklet_abstracts.pdf
>>
>
>4.8 a 32nm 3.1 Billion Transistor 12-wide-issue itanium® processor
>4:45 pM
>for Mission-critical Servers
>R. J. Riedlinger1, R. Bhatia1, L. Biro2, B. Bowhill2, E. Fetzer1, P. Gronowski2, T. Grutkowski1
>1
>Intel, Fort Collins, CO
>2
>Intel, Hudson, MA
>
>
>An Itanium® processor implemented in 32nm CMOS with 9 layers of Cu contains 3.1 billion transistors.
>The die measures 18.2×29.9mm2. The processor has 8 multi-threaded cores, a ring-based system
>interface and combined cache on the die is 50MB. High speed links allow for peak processor-to-
>processor bandwidth of up to 128GB/s and memory bandwidth of up to 45GB/s
>
>first thougths:
>
>1)total cache is 50MB so 6MB L3 is likely
>2)ring-based system interface (reminds me original tukwila aka Tanglewood)
>3) 8 cores (no surprise here) multi(treaded) means more than two (more likely four)
>4) four engineers are from Fort Collins and three from Hudson
>
>now could be nice if David, Paul or anyone else would grab something from the designers before february...
>

The only problem with that estimate is that would mean the L2 cache would go from independent I and D on Montecito/Montvale/Tukwila back to shared ID with 256KB capacity. That's a significant reduction from 1MB+256KB on Montecito/Montvale and 512KB+256KB on Tukwila.
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