There are a lot of things to speculate about here!
I agree that hyperthreading is a big question. Usually it helps, but sometimes it hurts and sometimes it hurts tremendously. Check out this benchmark. The stock 750 beats i7 -- even the i7 975! -- presumably due to its lack of hyperthreading.
(From http://www.tweaktown.com/reviews/290...ng/index5.html.)
I suspect this result happened because all the code and data were cached. I suppose this is much less likely to happen with five WoWs but it would be helpful (like I said before) if somebody with an i7 920 would test the effect of hyperthreading with five WoWs.
Another question is upgradeability. If you're planning to buy a 6-core Gulftown then of course the 920 and LGA 1366 are the way to go. But Gulftown is supposed to cost $1000 or more and not many people will buy it.
If you're not planning to buy Gulftown, is 1366 really more upgradeable than 1156? A lot of people think so, but I really don't know why. Maybe you have good reasons for thinking so and you can tell me.
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