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(Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)



 
 
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  #1  
Old September 12th 15, 08:05 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

Hello,

I was considering the T version of Intel's Skylake processor.

However it seems unavailable, maybe/perhaps there is a reason for it. Maybe
the T version is just not so great.

What interests me about the T version is the low TDP of 35 watts.

However the clock frequency is only 2.8 GHz per core, this would give 800
Mhz above my current AMD X2 3800+ which runs at 2.0 Ghz per core.

This seems somewhat weak considering the X2 is roughly 10 to 15 years old
.

Other concerns a

TURBO BOOST to 3.6 Ghz questions about this a

1. Will TURBO BOOST make the 35 watts processor exceeds 35 watts ?

Other questions:

The K version is "unlocked" they say. Can it be "underclocked" ?

Is it possible for the K version to run at 35 watts or 50 watts ? For
example in hot summers ?

Other concerns are reports about TURBO BOOST causing stutter in games.

Other concerns are low GHz processors are STRESSED more during gaming... and
a better/higher GHz processor might have to work less hard... and might
actually run loss hot ?!

Ofcourse in future this new processor will probably be stressed to the max
anyway if not already...

If the K version can be underclocked... then it's pretty much the same
processor as the T version... so then it makes no sense for me to wait for
the T version... and I could go ahead and purchase the K version.

Some motherboards do require some update to set some Fclock variable to 1000
Mhz... but that sounds doable... though other problems with this may occur
in future... but even if it does would only cause 5% discrete GPU
performance reduction/degradetion.

Also Intel and AMD measure TDP differently... AMD seems to be more about
maximum heat under maximum load... while intel seems more about heat under
average usage ?!

So what would be this intel's processors max TDP under maximum load ? Could
this processor exceed 95 watts easily ?!?

I wonder about real world/benchmark temperatures especially compared to for
example AMD X2 3800+ processor

For now I mainly seek information about it's underclocking potential in case
this intel processor runs to hot in summer times...

Also I would assume/would be nice if underclocking can be done via
Windows... for example via advanced power settings... my current AMD
processor can do that !

It wasn't necessary this summer cause everything was cleaned and such...
there were a few safety temperature shutdowns though... but nothing too
serious...

I'd also be interested to know what GHZ this K version would run if it was
underclocked...

Reducing fans in PC cases would be nice... but I think that will not be
possible with this processor if it runs at 95 watts... I do worry about
about new components also hotter than 10 years ago or so... like
motherboards, memories etc..

Though DDR4 uses less energy/voltage ? So maybe it's also cooler ? I would
expect the opposite though usually hardware gets hotter throughout the
years

I kinda want a less noise-full system... but I also want to enjoy more
performance... so now I would start to worry that 800 Mhz would not be
enough of a boost to make me happy... and if turbo boost makes processor
much hotter... might as well go for the K version ?!?

Bye,
Skybuck.




  #2  
Old September 12th 15, 08:10 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Posts: 480
Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

Hmm funny enough these two processors seem to have 1 difference according to
this website:

http://www.cpu-world.com/Compare/590..._i7-6700T.html

The T version has trusted execution ? Which is kinda funny...

The only thing which is kinda silly ?!?

Though perhaps this trusted execution might be interesting in future but
probably not...

Maybe T version is like the "spy-ware"/insecure version ?!

Bye,
Skybuck.

  #3  
Old September 12th 15, 08:12 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Posts: 480
Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

I wonder if trusted execution protects against SMM vunerabilities and
without it not ?

Bye,
Skybuck.

  #4  
Old September 12th 15, 08:46 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Posts: 480
Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

I found one picture which might be showing an underclock of some sorts ?
(top left picture):

http://www.pcgameshardware.de/Core-i...6600K-1166741/

CPU-Z picture shows: core speed: 799.61 Mhz ? core voltage: 0.752v

Not sure what that is about.

Bye,
Skybuck.

  #5  
Old September 12th 15, 10:45 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Paul
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Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

Skybuck Flying wrote:
I found one picture which might be showing an underclock of some sorts ?
(top left picture):

http://www.pcgameshardware.de/Core-i...6600K-1166741/


CPU-Z picture shows: core speed: 799.61 Mhz ? core voltage: 0.752v

Not sure what that is about.

Bye,
Skybuck.


The processor clock speed changes when the processor is not busy.
On Intel, that would be EIST. And AMD has a scheme like that
as well. Even your processor would be doing that. You could get
a copy of CPU-Z and watch the frequency that way.

Intel EIST

https://en.wikipedia.org/wiki/SpeedStep

AMD features

https://en.wikipedia.org/wiki/PowerNow!
https://en.wikipedia.org/wiki/Cool%27n%27Quiet

Even CPU-Z got mentioned in Wikipedia...

https://en.wikipedia.org/wiki/CPU-Z

Paul
  #6  
Old September 12th 15, 11:32 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Posts: 480
Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

Ok slighty interesting.

I did do a bios update not long ago.

I think these kinds of features can be disabled...

It does happen currently on my processor... I didn't disable cool n quiet
and such...

For now I have not noticed it... though perhaps I got used to any stutter or
so in games.. probably primarly thinking it's the GPU that's struggling...

However for a new system with an awesome graphics card... these frequency
changes might be observable... though I have read something that these
changes now happen faster...

Also does lower frequency necessarily mean lower TDP output ? I would think
so.. usually this make cpu temp go down again...

Though the question is if these frequencies can be limited = underclock...
to prevent overheats.

Perhaps under voltaging might do that trick ? For now it doesn't seem like
it ? Perhaps just energy savings ? or perhaps voltage need to be set really
low ?

Perhaps it's about clock multiplier or something.

Never really understood how that works ?

Is there a base clock ?

Which is the multiplied ?

And shifted to create a higher looking frequency signal ?

Example:

DDDDUUUUDDDD

^ down up down signal.

Multiplied by 2:
DDDD DDDD UUUU UUUU DDDD DDDD

Good question: in what way is it multiplied ? In length/wave ? or in
height/volume/amplitude ?

then shifted by 1,2,3,4,5 etc ? ?

DDDD DDDD UUUU UUUU DDDD DDDD
XDDDD DDDD UUUU UUUU DDDD DDDD
XXDDDD DDDD UUUU UUUU DDDD DDDD
XXXDDDD DDDD UUUU UUUU DDDD DDDD

^ more ossicilations to choose from ?

or perhaps it's more like:

DDDD DDDD UUUU UUUU DDDD DDDD
XXXXX DDDD DDDD UUUU UUUU DDDD DDDD
^ perhaps some operation to filter out the UUUU only or something...
Hmmm

Or maybe combine it as such:

DDDD UUUU DDDD UUUU DDDD UUUU
DDDD DDDD UUUU UUUU DDDD DDDD

Still don't make much sense to me lol.

Hmmm

Bye,
Skybuck.

  #7  
Old September 12th 15, 11:37 AM posted to alt.comp.hardware,alt.comp.hardware.pc-homebuilt,comp.arch,nl.comp.hardware,sci.electronics.design
Skybuck Flying[_4_]
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Posts: 480
Default (Skylake) Intel® Core i7-6700K (4.0 to 4.2 ghz 95 watts) vs Intel® Core i7-6700T (2.8 to 3.6 ghz 35 watts)

Oh apperently multiplier is only related to communication with the MAIN RAM
system.

The CPU itself runs at full speed ?

Hmm...

I guess the multiplie is some kind of timing system to catch the memory
request at intervals for example a 10x multiplier... might catch memory
request at 1/10, 2/10, 3/10 into the cpu processing.

Depending on when memory request returns ?!?

Or perhaps pipeline memory requests... so that at each 1/10 a memory request
can be serviced/done ?

Bye,
Skybuck.

 




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