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FYI and for general edification /education
It actually hurts performance a lot if your say using 4 of the 8 processors, and each processor has 8gb of memory at it, but you need like 10 each, ...


DRAM is physically SPLIT EXACTLY to leverage each INDEPENDENT coherent path from memory module to
correspodning processor and make throughput scalable. This is common and highly desirred in parallel workloads at which AMD architecture is much better suited for.

Try to do the same parallel processing on Intel based systems and the memory will choke.

Woodcrests are OK up to TWO cores but with fouir cores the memory bottleneck reappears as their new FSB STILL cannot take the aggregate memory throughput that is needed to feed the 4 cores. This is by Intel's own admission. Intel never cared to cater to a system with more than 2 cores.

BTW, you need MORE than 8GB DRAM / core ? These numbers are way OFF when talking about even the most extreme OLTP, HTTP or even HPC workloads.

I can BET that an application that needs so much DRAM can be parallelized and leverage an SMP system in which case you NEED to split DRAM to different mem controllers.
Posted by: michael_t   Posted on: 08/15/06 You are currently: a Guest | Members login | Terms of Use
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Take that George Ou!!!  nucrash | 08/15/06
dont you think...  doh123 | 08/15/06
I learn from Linux Zealots  nucrash | 08/15/06
Well, no clock increase  georgeou | 08/15/06
I know, I just thought I would troll you  nucrash | 08/15/06
LALA  loydc1@... | 08/15/06
Waiting for the Intel fanboys to arrive  nECrO_z | 08/15/06
Could be wrong but..  bobiroc | 08/15/06
I think this is the current status....  JoeMama_z | 08/15/06
thats true overall, but  doh123 | 08/15/06
FYI and for general edification /education  michael_t | 08/15/06
a better solution for what?  doh123 | 08/15/06
mother  IceTheNet@... | 08/15/06
Why? It's slower than Intel's CPU.  No_Ax_to_Grind | 08/15/06
For gaming, yes  Yagotta B. Kidding | 08/15/06
Where are the benchmarks comparing the NEW opteron to woodcrest?  michael_t | 08/15/06
1U  misceng | 08/15/06
It started getting really interesting. No on to Benchmarks  michael_t | 08/15/06
then what is a benchmark....  JoeMama_z | 08/15/06
Test with your own workload  Yagotta B. Kidding | 08/15/06
I know what you are saying....  JoeMama_z | 08/15/06
www.spec.org or  michael_t | 08/15/06
One theory  bidemytime | 08/16/06
Thanka: It meant to be " now" not "no" (?) happy  michael_t | 08/16/06
ISN'T THE CPU A MEMORY CHIP?  BALTHOR | 08/15/06
Reverend F Opteron, eh???  swoopee | 08/15/06
Competition is sweet [nt]  Omch'Ar | 08/15/06
A bit closer to Woodcrest, but no cigar  Prognosticator | 08/15/06
Excellent!  VonHelton | 08/16/06
15% faster because of the RAM???  A. Noid | 08/16/06
RE: AMD unleashes next-generation Opteron chips  john methew | 06/09/09
RE: AMD unleashes next-generation Opteron chips  gamescollection02 | 08/18/09

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