Microsoft Surface Book 2 Core i7 Processor speed?

[Rettyv]

Microsoft Surface Book 2 - the spec says 4.2 Ghz Core i7 - but the System Information in the Book shows 4 CPUs and a max speed of 2.1 Ghz - can anyone clarify on this configuration.

 

[wynand32]

Here are the specs for the Core i7-8650U:


# of Cores: 4
# of Threads: 8
Processor Base Frequency: 1.90 GHz
Max Turbo Frequency: 4.20 GHz
Cache: 8 MB SmartCache
Bus Speed: 4 GT/s OPI
TDP: 15 W
Configurable TDP-up Frequency: 2.10 GHz
Configurable TDP-up: 25 W
Configurable TDP-down Frequency: 800 MHz
Configurable TDP-down: 10 W