Clock speed : 3.3 GHz. Don't remove the mark of " Ibk " on below right side of CPU. Check if " Serial number " on CPU and sticker of original black paper are same.Return CPU by putting in the original black paper CPU box I sent. The item "Intel Xeon E5-2667 v2 Eight Core SR19W (CM8063501287304) Processor withGrease" is in sale since Wednesday, April 25, 2018. This item is in the category "Computers/Tablets & Networking\Enterprise Networking, Servers\Server Components\Server CPUs/Processors". The seller is "wychoi63" and is located in Gimpo-si. This item can be shipped worldwide.