In the past, Xeon CPUs were more powerful than their Core-series counterparts. Intel offers the Core i5/i7/i9 processors as the consumer series and the Xeon processors as the professional series. The CPU will function between 3.8GHz and 4.6GHz depending on the number of processing cores utilized.
If the system is utilizing 1 core, the CPU will function at the 4.6GHz turbo. If the system tasks are utilizing all 6 cores, the CPU will function at 3.8GHz.
An example is a CPU model with 6 processing cores with a 3.8GHz base frequency and a 4.6GHz turbo frequency. Processors have base and turbo clock speeds.