CPUs have cores, but CPUs do not 'have' threads. (By the way: The marketing terminology by which a CPU has, for example, 'four cores and eight threads', is misleading. (Although if a process has only one thread, the distinction is pretty fuzzy from the outside.) Threads, which are parts of processes, are what run. To really talk about this we need to mention threads. not if it's the only thing that wants to use the CPU. Priorities don't affect processing speed, in that a higher priority process doesn't get to run faster or even to use more CPU time. Does your card help you get checked out faster? Nope.
You go to the store, fill your cart, go to the checkout counters, and find there's no one in line. Suppose you have a 'go to the head of the line' card for the grocery store.
