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[Tech Eye] Intel's Ivy Bridge specs leaked - Page 2

post #11 of 97
Something I posted earlier today:
Quote:
Originally Posted by Alatar View Post

First of all SOURCE.
422
Quote:
IBT default test setup passed, but this chip runs HOT. As you can see from the screenshot it hit 104C during the IBT, but the vcore never rose above 1.312. This is a bit worrisome. Why such high temps at low voltage? I have no doubts about the heatsink installation, its a very simple process and its on there nice and snug with proper amount of compound. Its currently idling between 32-38C, and my 2600K idles between 24-29C with this cooler. But if temps remain higher than expected I will do a reapply of compound and reinstall of the cooler. Now I will begin finding max stable clock speed.
Quote:
All I did while at 5GHz was a 1M run of SuperPi (much lower temps there since it doesn't stress the CPU much), and validated the overclock with CPU-Z, as well as posted to a couple forums. It crashed instantly with the Chess benchmark and BSOD with Prime95. This was at 1.375 vcore and I know there seems to be head room there but the temps were just too high with my cooler (100C+). Even when I booted the system for the first time tonight with the 3770K and saw the temps I was getting at 4.8GHz under load I knew it wasn't going much further with my cooler (Thermalright True Spirit 140 - $40). What's weird is it does a fine job always keeping my 2600K @ 4.6GHz below 70C under the heaviest load but this Ivy Bridge chip runs damn hot.
It would seem that at least some of the IB ES CPUs floating around are getting really high temps. I'm inclined to believe that the guy who has the chip has installed his HS properly, and I also don't see the logic in the counter arguments saying that since the HS is not hot to the touch, the mount must be bad. Just because the chip runs hot doesn't mean that it outputs a lot of heat. Could this be a side effect of the tri gate transistors with intel's 22nm tech?
Quote:
You guys believe me now that maximum speeds are going to be lower than SB? IB runs hot because the 22 nm Tri-Gate node is made to be low leakage, meaning higher temperatures at any given voltage.
Quote:
Water won't help much if at all. Have fun chasing the Dragon F1 around (I'll reveal what that means later, you can probably work it out though).
From Kyle over at [H]:
Quote:
Guess it is all good to talk about since we don't have processors from Intel yet.
Ivy Bridge will clock no better than Sandy Bridge, in fact, it will likely clock worse as it will not be able to handle voltages much above 1.35 without a good chance of burning up the processor. 5 to 15% IPC improvement as clock scales. You will likely have a lot better shot of pushing a SB processor across the 4.8GHz threshold and keeping it stable than you will with Ivy Bridge. However, it looks to be pretty easy clocking up to the 4.5GHz level or so many times requiring little voltage tweaks at all.
link
So according to these (if they're accurate) I would guess that IB will be really good for situations where temps are not a concern (meaning DICE, LN2, LHE etc.) No idea if it has a cold bug but still, people with samples seem to think that 24/7 limits will be around those of SB. Add to this the latest preview from VR-Zone showing us a chip that needed 1.34V for 4.7ghz, and I think some of the 24/7 users might be disappointed with the chip.
Thoughts?
 
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post #12 of 97
Quote:
Originally Posted by coolhandluke41 View Post

source
it could be a bust for average Joe..get your LN ready biggrin.gif

thumb.gif

Was reading this on another forum, apparently ivy will like the cold, and we might not see people getting the same overclocks on air as SB.
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post #13 of 97
Sounds like someone is Overclocking a Gigabyte Board, lulz!

Anyway, could be a sensor defect....

I highly seriously doubt this CPU would OC @ 100c by any proficient over-clocker...
Quote:
According to tests performed with an i7-3770K at stock settings, it has been possible to set the thing from 2600K to a 3770K at 4.5 GHz

I Loled....
Edited by _GTech - 3/12/12 at 12:20pm
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post #14 of 97
Again, low leakage (short for leakage current) means less power used to do things other than switch transistors, which means lower temperatures than a higher leakage part. High leakage chips run hotter, but do tend to scale better in frequency, if they can be kept cool.

It's possible this particular sample is a very high leakage part, or that these new 22nm tri-gate transistors have a narrower range of optimal leakage.
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post #15 of 97
didnt sb run hot initially? perhaps itll take intel awhile to get temps down for ib too
post #16 of 97
Dammit where's that VADER Meme

Emperor says, "Vader, you killed Padme", Vader screams "NOOOOOOOOOOOooooooooo!"

I had/have high hopes for this chip. I'm really hoping this gets clarified more...my i7 920 is end of life wink.gif I keep telling myself, though it runs everything fine lol.
Edited by Ghoxt - 3/12/12 at 1:17pm
post #17 of 97
100°C ? With a die shrink ? Lol, I HIGHLY doubt that. Since die shrinks mean, same architecture, lower temps and less power usage.
Quote:
Originally Posted by driftingforlife View Post

450

I've said it before on these forums and I'll say it again.
The expression : to take it with a grain of salt. Means : accept it (the salt) but maintain a degree a skepticism (only take a grain)

The mountain of salt implies that you think the source is very credible, which is the opposite of what you're trying to say.
post #18 of 97
Quote:
Originally Posted by Ghoxt View Post

Dammit where's that VADER Meme
Emporer says, "Vader, you killed Padme", Vader screams "NOOOOOOOOOOOooooooooo!"
I had/have high hopes for this chip. I'm really hoping this gets clarified more...my i7 920 is end of life wink.gif I keep telling myself, though it runs everything fine lol.

Only to be used in dire situations

I think it is to be expected that this chip will run hot, but I would put the exact 100 degrees report to show that the calibration on either the chip or the program is off
post #19 of 97
Guys, a smaller node doesn't necessarily mean lower temps. Lower heat output usually yes, especially if the part has a similar die size compared to the one it's replacing. But not temps. High temps do not mean that the chip has a high TDP or that it's producing a lot of heat.

It might just be that Ivy is very sensitive to voltages, 3d transistors might have caused leakage issues (this would be a good reason for delaying the mobile parts, like intel did) etc.

Like I pointed out in my previous post, many people with these chips have stated that they would not OC all that well for 24/7 usage. The really good OCs we've seen have been on LN2. Even the latest VR-Zone preview had a sample that only did 4.7ghz @ 1.34v, which would seem to cause some issues when it comes to temps with ivy.

Then again this would probably be a welcome change for extreme OCers since for a change intel chips would scale well with cold.
 
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post #20 of 97
Quote:
Originally Posted by Blameless View Post

Again, low leakage (short for leakage current) means less power used to do things other than switch transistors, which means lower temperatures than a higher leakage part. High leakage chips run hotter, but do tend to scale better in frequency, if they can be kept cool.
It's possible this particular sample is a very high leakage part, or that these new 22nm tri-gate transistors have a narrower range of optimal leakage.

There's always the next stepping. thumb.gif

Rumors purported that Intel has issues with the 22nm 3D transistors. I am sure Intel will reduce leakage and increase yields as this process matures.
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