This was not very hard:
Your machine: Dell Inspiron 17" 5770
Your CPU: 8th Gen Intel Core i5-8250U processor
My guess was that this, as a mobile i5 had a dual core, and Hyper threading, so I looked it up @ Intel.
Intel® Core™ i5-8250U Processor (6M Cache, up to 3.40 GHz) Product...