Single Thread Rating

[Conadan]

A i7-4770k got 2274 in single thread rating at the moment and a total score 10264. With hyperthreading this CPU got 8 threads. Can I expect all these threads, at the same time, to perform up to let's a single rating value of 2274?

And how does single thread value relate to it's total cpu score?

[David (PassMark)]

To understand the single threaded result you need to have some understanding of how software is coded.

By default most software is single threaded. It takes extra effort by the programmer to make a task multi-threaded. Also some tasks must be done in series, and fundamentally can't be converted to be multi-threaded. Further even when software multi-threaded it might not lend itself to running in 8 threads at the same time.

So different applications will generally be a mix of single threaded and multi-threaded code. Even in one application there will often be a mix of both.

But running multiple (unrelated) application is also a form of threading, as each application will have at least one thread.

So both benchmarks results are important. But you can't multiple the single threaded score by 8 to get the full CPUMark score. Among other reasons, the scaling isn't linear.

These Wikipedia pages might help
http://en.wikipedia.org/wiki/Thread_(computing)
http://en.wikipedia.org/wiki/Computer_multitasking