"Those are PassMark benchmark scores. PassMark is a benchmarking software which runs the CPU through many stress tests like
read/write operations, math calculations, and graphics processing. People who run PassMark can submit the score they got with
their processor so those charts are showing the average submitted scores for each processor. I wouldn't read into the overclocked processor charts much because they include mild overclocks as well as extreme overclocks, and there's no way to know how overclocked the processor was when it got the given score. If you really want to see specific scores, you can click a processor from the list and it will show the last 5 submitted scores along with information like RAM, measured speed, hard drive, graphics card, etc."
There's multithread/hyperthread/something I forgot, that some can do but is only found in high-end programs/games/VSTs.