No one can provide a focused, relevant response until you specify your usage case, something you unhelpfully neglected.
One thing for sure, a desktop isn't going to be portable, so you are sort of comparing apples and oranges (sorry about the pun).
Anyhow, it really depends on what you plan to do with the new computer. Games, editing video, typing school notes, coding, working on spreadsheets?
That leads to the next question: what shortcomings does your current equipment (which you did not bother to mention) have?
Anyhow, good luck with your purchase decision.