Silly question

[CREATIVE!11]

But I need to ask it I've tried to google but googling total speed of said CPU just gives me random results

Basically I want to know in GHZ how fast is a intel 4770k (my current cpu) do you times the speed by number of cores /threads? etc?

I've never actually known this info despite owning many dual core/quad core cpus.

So basically how would you work out total speed?

 

[David Bisset]

'Total speed' is a meaningless idea. The clock speed is the speed, other than that you use benchmarks for certain tasks.

For example some things will see nearly double performance going to the hyper-threaded 4770k over the 4670k, while others will see no difference at all or even a slight decrease. Hence you can't calculate a total speed without knowing what the task you're trying to complete is. The problem here is people have been using clock speed as an idea of 'total speed' for ages, even though it's never been particularly accurate or meaningful.

Edit: So generally you'd find a certain benchmark and compare them that way, take another one and do the same and so on. e.g. http://www.cpubenchmark.net/cpu_list.php gives some numbers but remember that what you are doing may make these horribly misleading.

 

[zyzzyzus]

Ghz is a measure of frequency. Put simply, if processor A performs more 'instructions' per 'cycle' than processor B, processor A might outperform processor B despite having a lower clock rate.

The only way to measure true 'speed' is by benching it and that depends on the applications as already mentioned. This is due to different programs making use of a different number of threads. At the worse end, a single threaded program will perform worse with hyperthreading than without. So it would run better on an i5 than an i7.

Though with an i7 you can disable hyperthreading to get the same performance.