post #11 of 11
Quote:
Originally Posted by Scorpii;13747815 
The hyperthreaded cores are not nearly as powerful as the 'real' cores, but they still add to performance. so running 4 'real' cores and 4 hyperthreaded cores at 5GHz gives you a reasonable amount more power than just 4 real cores, but not as much as 8 real cores (at least in highly multithreaded applications).

It doesn't halve the effective power of each real core, as it uses a method of utilising extra CPU power that wouldn't otherwise be utilised on each 'tick' of the CPU.

Your last question is a little more involved to answer (except for pointing out again that it doesn't work like you asked, with the clock speed halving). Most applications do not need or utilise 8 threads, and it has been posited that hyperthreading actually slightly reduces performance in things like games or some other applications. Certainly at least hyperthreading tends to lower your maximum possible overclock (as it requires more power, hence you reach clock speed limit before you would otherwise), and for many applications you'd be better off with, say, HT off at 5GHz than HT on at 4.5 GHz (for example)

However, for highly multithreaded applications like encoding, rendering etc hyperthreading tends to help a lot.

On the games couldn't u just set up the game to use the 4 real cores via affinity option in task manager and then wouldn't that let the game perform like it would if u had HTT set to OFF?
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