>I posted some info about the i7-4770K in message#1594431 . Hyperthreading doesn't yield much extra performance, you can really think of it as a 4-core processor with about 20-30% better performance.
>
>I think trying to run any more than 4 job threads on a 4770K is probably a mistake, it'll just cause unnecessary context switching.

you would be totally correct if the job threads were done in node.js-like nonblocking code. In vfp it depends where the bottleneck resides ;-)