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dual Xeon Haswell versus i7-3970

Hello,

I'm looking to build a workstation for 24hr/day multithreading ( large scale GIS processing), and I see a lot of threads on the topic of 'dual Xeons vs the i7-39XX'. Members have stated that due to things like 'latency?' dual Xeons don't actually perform well, and certainly not proportionate to the number of extra threads (e.g., two Xeon E5-2643 @ 3.3GHz for 16 threads versus 12 threads at 3.5GHz with a i7-39XX).

I'm not sure what latency and other hangups there may be with two Xeons, but is this a) still an issue with the latest Haswell Xeon E3 series (e.g., Xeon E3-1285 here); and b) if the multi-threading tasks are independent on the scale of several minutes (e.g,. there doesn't need to be quick crunching per thread and inter-dependence of the results of the calculations per thread)?

Thanks for your help. I'm tempted to go with two Xeons but I see so much reluctance on this forum (and I'd be limited to just 32GB of RAM apparently)

EDIT: It seems I posted an incorrect question, in that the new Haswells are only available as uniprocessor (http://ark.intel.com/products/75057), i.e, you can't get 8/16 cores/threads with two quad-cores. Is this correct?
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More about dual xeon haswell versus 3970
  1. Best answer
    For 24/7 Multi-Threaded GIS processing I would go with Xenon based solution, will be taking advantage of ECC?
  2. On the haswell cpu's you can get many, many cores on a single processor. I think as many as 24?
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