Processor question

[Simba]

so im looking to buy a gaming laptop and im really good with computers but i want to know the difference between dual core with hyperthreading 4 threads and a quad core im looking 1k laptop at least that can run games on high like skyrim/rust/ etc etc i just cant figure out the difference i know 4 cores is better because its less work for the processor then a dual with hyper cause it has the job of working 2 threads