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About this Mac showing wrong CPU frequence

Joined
Feb 8, 2010
Messages
164
Motherboard
Gigabyte GA-Z87X-UD4H
CPU
i5-4670K
Graphics
RX 580
Mac
  1. MacBook Air
Mobile Phone
  1. iOS
Why is my About this Mac in Mountain Lion showing 2.8 GHz for my non overlocked 2.66 Core i5 750? If it was overclocked at 2.8 GHz then all would be sweet :D but it's running at 2.66, not 2.8.

Tried reseting my BIOS to optimised defaults and it shows 2.66 GHz. Using Chimera and a Mac Pro 3,1 SMBIOS.
 

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