hmm..

Now see, that's what I wanted to hear. What advantage is there with the CPU HT on verus not using. 33% is impressive.

Might need to look at that then

Zalster

Z - Do search at AnandTech re: Intel i7 5690x_OC, for similar range in *power *savings while increasing clock speed.
He lists about 5 Clock speeds, voltage and other parameters in a chart with summation re: Sweet spot(s.

Using his chart for my own project

PS- don't forget the "advantage" of turning on Unified Memory in all your Maxwells - there's another throughput increase

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Well my computer made the decision for me.

It doesn't want to be hyperthreaded. LOL

I've had problems with this MoBo ever since I got it.

Once it turns off, it's a bear to get it to reboot.

I just spent the last 40 minutes trying to get into the BIOS to change turn the HT back on.

Never got there.

Finally got it to reboot and go to start up screen.

Think it's trying to tell me something.

So I'm done messing with it. It's back up and running and I'm not going to be attempting that again for sometime


Zalster

Ratz!
Do contact ASUS - pretty responsive Tech support
Highly rated Board

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... My i7-860 showed 11.1% increase in power consumption & 27.7% increase in work output when running HT on & 8 tasks.

Thanks for the good real world example. That looks to be about right for something consistent like s@h tasks.

Note that each task will individually take about twice as long to run but with twice the number of simultaneous tasks and with opportunistic utilization of CPU cycles, you see better utilization to give a higher throughput overall.

The increase in power usage is a good indicator of higher utilization (more work being done). (Or... If you see a slowdown,the higher power suggests that the tasks are too big for the CPU cache and all that extra power is being used to thrash the cache and system RAM.)

In computing it is all a balance of where in the design is the slowest bottleneck... Or not ;-)


Happy fast crunchin',
Martin

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