ISSCC 2008 Preview online

Article: ISSCC 2008 Preview: Silverthorne, Rock, Tukwila and More
By: Aaron Spink (aaronspink.delete@this.notearthlink.net), December 6, 2007 7:36 am
Room: Moderated Discussions
savantu (savantu@email.ro) on 12/5/07 wrote:
---------------------------
>Niagara 2 has 8 cores , 64 threads and takes 342mm2 on 65nm.
>Rock has 16 cores , 32 threads and takes 396mm2 on 65nm.
>
>To me , Rock cores will be simpler than Niagara 2 ones , how can you explain doubling
>the core count with only a 16% increase in die size ?
>
Niagara contains a full system infrastructure. Rock only contains a dedicated xbar interface. This can have a significant impact in die area. Likely the rock cores are around 10-15 mm2 with the rest of the die filled with L2/L3 and the xbar interface.

Aaron Spink
speaking for myself inc.
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