Do you understand this laptop speed?

Do you understand this laptop speed?

I want 3.5ghz but listings online say 2.6 - 3.5ghz. Why are they mixing it? I'm confused.

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+1 y
I need the laptop to run fl studio daw for music production. My fiance gave me a budget so I am seeking for something good but not too expensive.
Updates
+1 y
I want laptop cause I want it to be mobile. Also I want to use Fl studio daw. The software requires ar least:

Ram: 16
CPU speed: 3.6 - 4.2 GHz
Processor: i5, or i7 or Ams rhyzen but fast
Win: 10
Internal storage drive: 500gb or 1 to 2 tb.
SSD preferred over HDD
Screen resolution:Full

Do you understand this laptop speed?
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