Replies to post #1155 on AMD strictly moderated (AMD)

[pgerassi]

Re:

 
 Parameter  QC NGA     QC Opti 
 Freq        2.33Ghz    2.4 Ghz 
 Cache       8MB        4MB 
 Die size    2x135?     400 
 Memory BW   8.5GB/s    10.6 to 12.8GB/s 
 Power       80W?       140W? 
 

Not quite, Alan. Woodcrest QC will have two FSB connections and quad FBD channels, so the combined memory bandwidth is 17GB/s, which is greater than QC Opteron, so it should scale better. I would also expect Intel to do a 2x Conroe TDP for their MCM to achieve higher frequencies, so you can expect Woodcrest QC to clock at least two 2.66GHz @ 130W. Though there may be an 80W "LV" option for blades as well.

Here is my version of the chart.

 
 Parameter   QC NGA     QC Opti @ 90nm    QC Opti @ 65nm 
 Freq        2.66+ Ghz  2.0+ Ghz          2.6+ GHz 
 Cache       8MB        4MB               8MB 
 Die size    2x135?     400               350 
 Memory BW   17.0GB/s   10.6 to 12.8GB/s  same 
 Power       130W?      140W?             same 
 

Your chart forgets that the chipset covers two sockets and puts one FSB to each socket. There aren't enough pins for Intel to put two FSBs into one Xeon socket. So Alan81 is correct.

If you want to show the dual socket version of the table with TDPs set to same standard as well:

  
 Parameter   QC NGA     QC Opti @ 90nm    QC Opti @ 65nm 
 Freq        2.66+ Ghz  2.4+ Ghz          2.8+ GHz 
 Cache       8MB        4MB               8MB 
 Die size    2x135?     400               350 
 Memory BW   17.0GB/s   21.3 to 25.6GB/s  21.3 to 33.6GB/s 
 Power       170W?      Up to 140W?       same 
             NB incl.                     (DDR2/1066 support) 
 

Pete