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Intel EIST. |Better On or Off?

photoshop

photoshop

photoshop

Soldato
Joined
7 Nov 2006
Posts
5,677
Location
Stockton on Tees
I'm just curious if people turn this on or off..?

I have it on and can see in RealTemp that the Mhz and Voltage drops on idle.
Does this affect performance at all?

Is it better to have the the CPU at 100% all of the time so you are getting the max out of the CPU or are i3 Haswell's good enough so that when it shoots from 800Mhz (min) to 3400Mhz (max) that there is no lag?

Just wondering what people think......
 
I leave it on. I don't notice any lag, and it's very responsive and with fine granularity on Haswell. I don't want my CPU drinking power, making heat and noise when it's not doing anything. In fact, it's one of the new selling points of Haswell.
 
back in the core 2 duo days this was turn off if overclocking as it was more stable, but if your not overclocking left it on. it basically trying to save power and lowering your clocks and voltage when you don't need it and only rising it when you put load on it. but if overclocking this constant switching can crash the system.

well at least back in core 2 days, im pretty sure it will have a simular affect in todays processors but dont quote me on that. :P


why am i awake at 1am 0.0
 
photoshop said:
Is it better to have the the CPU at 100% all of the time so you are getting the max out of the CPU or are i3 Haswell's good enough so that when it shoots from 800Mhz (min) to 3400Mhz (max) that there is no lag?
Click to expand...

Leave it on. The switch takes microseconds, which you'll only notice if you do live music production. The power savings are massive and you will notice them on your leccy bill.
 
Yeah for everyone except competitive overclockers it's best left on. Preserves CPU too when it's not running at full voltage 24/7.

Mine goes all the way down to 0.2 when idle or something like that.
 
Minstadave said:
Works perfectly for me and running my 2700k at 4.8ghz, can't complain.
Click to expand...

Yup, i5 2500k at 4.5ghz, clocks down to about 1.6 on idle or low load. Also seems to clock up to 3.3ghz (non turbo frequency) and various other points between 1.6 and 4.5 depending on load. very good system.
 
I had to turn it off unfortunately because it was affecting the sound of my DAC, causing pops/distortion. So now its running full whack 24/7
 
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