Sun Opteron x4100 outscaling woodcrest part 2
Wednesday Nov 15, 2006
As mentioned in the posting earlier today, scalability is important factor in system performance. Woodcrest's poor scaling may not bode well for Cloverton. Sure you can package for threads onto a module, but unless you design for them you'll just have more threads not delivering performance but just burning more watts.
Wattage: I'll get detailed wattage results posted soon, but it looks like as we mentioned Opteron performance is about 20% more than Woodcrest. The wattage for both configurations looks the same. Therefore expect Sun's Opteron to have about 20% perf/watt advantage.
Sun's Fluent results will be posted shortly on the website, it is a busy week with Supercomputing conference and lots of busy people. So keep checking back. A few of the smaller gave Woodcrest a small percent advantage, but most were significantly faster on Sun's Opteron.
...maybe Woodcrest will have better idle power, but why in the world would you buy the latest server and leave it idle?
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