it says on the Window10 MyComputer's property tab that CPU is intel Xeon CPU E5-2609 0 @ 2.40GHz(two processors) but there are lots of.. for example e5 v4,e5 v3,e5 v2 and just e5.

[JYou3]

this is screenshot image just in case

thank you very much

[VARADHARAJAN]

here is the comparison of e5 all versions in single link , please visit you will to come to know real differences and if you satisfied means , mark as answered .

https://ark.intel.com/compare/92990,81897,75787,64588

[SergioS_Intel]

Hello Jiyong, Please let us know if you have any further questions. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation

[SergioS_Intel]

Hello Jiyong, We are following up your case and we would like to know if you need further assistance. Best regards, Sergio S. Intel Customer Support Technician Under Contract to Intel Corporation