Intel Pentium G3220 running at 2.97 instead of 3.00 GHz

[maxb3000]

Hi guys,

I have just a simple question for you guys: Why the hell the CPU running at 2.97 GHz instead of 3.00 GHz ?

I disabled some power saving features in the UEFI and not it's at 2.99 GHz but nothing more.

Why I can't get the 3.00 GHz ?

Thanks !

Mobo: Gigabyte B85M-D2V
CPU: Intel Pentium G3220
RAM: Kingston 8 GB DDR3
GPU: Intel HD Graphics 4000
HDD: Seagate Barracuda 1 TB
PSU: Sirtec Element Power 500 W
Case: Segotep C1 Black
Screen: Samsung 48 inch panel
OS: Windows 10 x64 (Installed UEFI)

Link to the CPU:

http://ark.intel.com/products/77773/Intel-Pentium-Processor-G3220-3M-Cache-3_00-GHz

 

[dangus]

its just the way it is. you're not gonna see a difference either way...

 

[maxb3000]

I know that but I am still wondering why....

 

[Sakkura]

The clock generator isn't perfectly accurate, so variations within 1% are to be expected.

 

[dangus]

I know that but I am still wondering why....

2.97 rounds up to 3.0 obviously. my 4770k is rated for 3.9ghz but it runs at 3889mhz or something like that...its just the way the bclk x multiplier works.

 

[Eximo]

The main system clock generator runs on a quartz crystal. These are sold with a 1% or .1% tolerance usually. For example my crystal actually pumps out 99.97Mhz x 43 for 4298.71 Mhz clock frequency.

 

[maxb3000]

Ok, thank you all for the explanation!