What are the differences between a thread and a core in a CPU?

Question

What are the differences between a thread and a core in a CPU?

In: 14

Answer 1

Within modern CPUs a “core” is a physical processor that actually exists on the CPU die. A thread is one code execution process on a CPU. In the past it was 1 core, 1 thread.

Modern CPUs support a technology called “simultaneous multi-threading” which means the CPU can run two different processes at the same time on the same core. So, 1 core, 2 threads.