Im confused about overclocking

[Bartek_Shady101]

I overclocked my ryzen 5 1500x to 3.8ghz at 1.325v recently, everything was fine, got a score of around 815 in cinebench. Today i was looking around in task manager and saw that the max speed of my cpu was 3.5ghz, I got a bit confused, so I started researching, and found out that wherever i check my speed, I get a different result. Cpu-z shows im running at 3.6, cinebench shows 3.5 and my bios shows 3.8. What MOD EDIT: Language is going on?

watch your language here

 

[mcnumpty23]

cpuz is accurate far as i am concerned

task manager/windows least accurate

and please delete the swear word its not appropriate in this forum

 

[Bartek_Shady101]

cpuz is accurate far as i am concerned

task manager/windows least accurate

and please delete the swear word its not appropriate in this forum

what can i do to change it to 3.8? Maybe im missing some setting in the bios?