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  • Good question that I don't personally have a good answer for except to say that I was also under the impression L3 was shared. I would just ask why on earth you're calling these '2nd generation' Xeons when 'Xeon' has been an Intel product for a decade now. (If this is by analogy to Sandy Bridge i3/5/7 chips being '2nd generation' then it's a bad analogy)
    – Shinrai
    Commented Apr 16, 2012 at 22:02
  • Intel refers to the i7-2600 line of CPU's as "2nd-generation" (ark.intel.com/products/family/59136/…). By "2nd-generation Xeon" I mean the equivalent release of the Xeon Sandy-Bridge E architecture CPU's on March 6, 2012 (en.wikipedia.org/wiki/…).
    – Dan Nissenbaum
    Commented Apr 16, 2012 at 22:10
  • 1
    That's the analogy I thought you were making. It's a bad one (those are 2nd gen i7s but these are not 2nd gen Xeons), and I'd change the title IMO...I was expecting to find a question about 12 year old processors and that might keep a lot of people from clicking into here. Maybe change '2nd generation' to 'Sandy Bridge-E'.
    – Shinrai
    Commented Apr 16, 2012 at 22:13
  • stackoverflow.com/questions/944966/…
    – Ciro Santilli OurBigBook.com
    Commented Nov 4, 2015 at 10:05