underclocked k same as s?

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dosmastr

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Underclock k model to save power? I game, but mostly its an office pc. Arent the s model chips just lower clocked to hit the lower tdp?

Would i be able to achieve similar if not better power usage by buying a k and lowering everything manually?

Also, would i need to hit up the bios every time i wanted to change anything of have we gotten past that?
 
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Supahos

Supahos

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Even your K processor slows itself down when its not needed to go fast and draw's less power. I wouldn't bother downclocking for power consuption reasons. The ammount of time a K processor would spend maxxed out in an office environment would be tiny. and the energy saving would not be attributable to the downclock, I would guess less than $2 a month.
 
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Deuce65

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"Underclock k model to save power? I game, but mostly its an office pc. Arent the s model chips just lower clocked to hit the lower tdp?"
Essentially yes.
"Would i be able to achieve similar if not better power usage by buying a k and lowering everything manually?"
No, it would use the same power.
"Also, would i need to hit up the bios every time i wanted to change anything of have we gotten past that?"
You would need to change it yes.

What is it exactly you are trying to accomplish?
You mentioned you use this as an office PC. If you are trying to save on your electricity bill you probably won't see much difference between these chips as they are both going to idle at something like .8V, 10 watts consumption.
 
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dosmastr

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Will beOk i think my question is:

What is the point of having s parts if they all throttle based on demand and have the same turbo as a non s part? What is the real difference? S thermal throttles sooner than non s? Is that all?

Phrased another way,
If they all throttle based on demand than does base clock even matter since it could be slower in low demand times and higher (turbo boost) in times of high demand?

My goal in this is low total cost of ownership, we use our pc for netflix, something im sure would hardly tax any modern cpu (or even the one i got already)I upgrade when i get a game that is unplayable, and it typically takes 5 to 7 years. (Cpu i have now is an e2180, he served me well until this year, starcraft hots was a little slow) i would just get an e7600 (fastest one my board takes) for like 40 bucks but typically you guys arent fans of upgrading like that, plus it would be nice to have an actual fast pc for a while.

My eye was on a 4570s for low tdp (lower tdp, in general lower power consumption.) But lets face it, thats not a big seller, nor will it be discounted all that much, but an equivilent k model will be.
 
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Deuce65

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It makes more sense if you look at it as boosting instead of throttling. The S will, if used, "boost" itself to 3.1gh and use 65 watts about, while the K will "boost" much much higher (and of course use more power). Of course it is more complicated than this. The K will boost much higher and use more power but it will also complete it's task faster and throttle back down while the S is still running at max power.
Either way, since you don't plan on needing that extra "boost" and in fact find it detrimental, you probably don't want to pay the small premium for the K chip.
 
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dosmastr

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By the K boosting higher, Im assuming you mean overclocking because they both have the same turbo limit at 3.6Ghz ---for this question exclude overclocking -- how would the tdp be different if the turbo speed (when its burning the most juice) is the same?
^ this is the thing i'm most curios about

The concern is that the S will be MORE expensive because its not going to be a high demand item for black friday, while microcenter already has some pretty impressive deals on ... not lettered ? and K models, the S is discounted, but not as much. In fact newegg had the non k cheaper until a few days ago

Exactly what are the rules for turbo kicking on? I read its when the OS requests S0 on the ACPI -- most performance and least power saving... When is this really triggered? I looked at a TM1 diag for my pc, the one chip is always at full speed, the other kicks off and on ALOT (like I wonder if its working right type alot lol) do these things throttle like cell phone cpu's or is it a bit different?

Now I'm told that not all 4 cores hit that, but maybe 1 or two -- while the others aren't heavily used, or the whole thing pops to 3.2 or something when all 4 ARE being used?

 
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Deuce65

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Well yes I am referring to overclocking. The primary feature of the K chip is the ability to overclock it via the unlocked multiplier. If you aren't interested in overclocking it via the unlocked multiplier, then there is no point to getting it.
I can't say what price the chips will or will not be selling for at some point in the future of course.
As for the overall cost to operate you are really making this way more complicated than it has to be. Assume for the sake of argument that you ran these chips under full load 24/7 you are looking at a difference in cost to operate of under 50 cents per month. Now consider that you will be running them under load for a fraction of that and the cost difference is negligable.
 
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