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Quad core (lower clockspeed) or 6 core (higher clockspeed)

Question asked by Chris Manger on Oct 10, 2011
Latest reply on Oct 12, 2011 by David Paulson

I remember reading awhile back something about a cpu with more cores may actually be slower than one with less cores.  Is this true for applications like SolidWorks?   I am configuring a Dell system and would like to get the best CPU I can.  The options are:


Quad Core Intel® Xeon® W3565 3.20GHz, 8M L3, 4.8GT/s [subtract $1,220.00]

Quad Core Intel™ Xeon W3550 3.0GHz, 8M L3, 4.8GT/s, Turbo [subtract $1,420.00]

Quad Core Intel® Xeon® W3530 2.80GHz, 8M L3, 4.8GT/s [subtract $1,480.00]

Dual Core Intel® Xeon® W3505 2.53GHz, 4M L3, 4.8GT/s [subtract $1,680.00]

Dual Core Intel® Xeon® W3503 2.40GHz, 4M L3, 4.8GT/s [subtract $1,730.00]

Six Core Intel® Xeon® Processor W3690, 3.46GHz,12M L3, 6.4GT/s [Included in Price]

Six Core Intel® Xeon® Processor W3670, 3.20GHz,12M L3, 4.8GT/s [subtract $830.00]


I know SolidWorks benefits from higher clock speed and is a single threaded application.   Is it worth getting the 3.46GHz W3690 CPU over the 3.2GHz W3265 CPU given the # of cores?