AMD cuts to the core with 'Bulldozer' Opterons

[Hans de Vries]

Without AVX, how can 8 FPUs capable of 4 DP FLOPs be 50% faster than 10 FPUs also capable of 4 DP FLOPs ?

Interlagos is double that isn't it : 16 cores x 4 DP Flops/cycle.
More important really is the DDR3 1.866 GHz capability. Bandwidth is
easily saturated even without using any AVX...

Frequency wise, I do not expect Interlagos to clock faster than 2.5-2.7GHz at 137w.

That sounds reasonable. I wonder if we'll see a high-end desktop/
workstation version now, since with all the power gating it should be
possible to have optimized single thread and few thread performance
as well as highly threaded throughput computing.

Secondly, the memory performance of Millbrook is very good considering the extra complexity : Tukwilla does 50GBs in Stream and Beckton does 60GBs+ ( SGI managed 69GBs ) at 4P level.

http://www.cs.virginia.edu/stream/st...2010/0006.html

Well Oracle is apparently pleased enough that they dropped the entire AMD based server lineup. I would guess Oracle has been testing Eagleton for quite some time now.

If Boxboro would have arrived in Q1,2009 then it would have been fine.
Now it has a rather short window of opportunity. Westmere EX and later
Poulson seem to have the same fate as Dunnington.

Kudos to AMD for switching away from the buffer-on-board approach on time.


Regards, Hans