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Ivy Bridge Versus Sandy Bridge: Temperature Analysis

T

Tempered81

Diamond Member
The limiting factor in Ivy Bridge overclocking
Article about IB's IHS Solder:http://www.overclockers.com/ivy-bridge-temperatures

73f2d28a_3570kvs2600ktemperature.jpeg


http://cdn.overclock.net/7/73/73f2d28a_3570kvs2600ktemperature.jpeg

IVY PASTE:
oc-ivydie-2-640x291.jpg

http://www.overclockers.com/ivy-bridge-temperatures
SANDY SOLDER:
attachment.php

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SB TJMAX is 98C, IVB TJMAX is 110C.

@ 1.1V IB runs 4,25C hotter then SB with HT off. (16.03%)
@ 1.2V IB runs 10,75C hotter then SB with HT off. (36.44%)
@ 1.3V IB runs 15,00C hotter then SB with HT off. (44.11%)
@ 1.4V IB runs 24,75C hotter then SB with HT off. (65.56%)

http://www.overclock.net/t/1242313/...mparison-3770k-vs-2600k-performance-temps-etc

edit: prochot/tjmax is 105C

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http://www.anandtech.com/show/5763/undervolting-and-overclocking-on-ivy-bridge
 
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Does the 2600k have hyperthreading turned off? I thought with the original i7s at least, hyperthreading added considerable heat.

If hyperthreading isn't turned off aren't we comparing two different classes of CPUs. It is an i5 vs an idea afterall.
 
Cythreill said:
Does the 2600k have hyperthreading turned off? I thought with the original i7s at least, hyperthreading added considerable heat.

If hyperthreading isn't turned off aren't we comparing two different classes of CPUs. It is an i5 vs an idea afterall.
Click to expand...


It's on the garphs: Same setup, No hyperthreading.
 
Cythreill said:
Does the 2600k have hyperthreading turned off? I thought with the original i7s at least, hyperthreading added considerable heat.

If hyperthreading isn't turned off aren't we comparing two different classes of CPUs. It is an i5 vs an idea afterall.
Click to expand...

You do know that the 3570k doesn't have HT either, right?
 
Dear Jesus, 1.5v on 22nm 72C projected call the fire department!!!

Edit: Found the thread, is he just testing stock speed with voltage bumps?
 
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BallaTheFeared said:
Dear Jesus, 1.5v on 22nm 72C projected call the fire department!!!

Edit: Found the thread, is he just testing stock speed with voltage bumps?
Click to expand...

That extrapolated chart is pretty meaningless, but the takeaway is that the 3570k will be running 30-50% hotter than the 2600k when overclocked and loaded.
 
Thanks for pointing that out to me, Akantus.

Arzachel said:
You do know that the 3570k doesn't have HT either, right?
Click to expand...

Yes, that's why I said what I did. A 3570k is more comparable to a 2500k, as they both don't have HT, whereas a 2600k does. But as Akantus pointed out to me, HT is turned off.
 
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If your search for the i7-3770K's product code (BXC80637I73770K) in Intel's Material Declaration Data Sheet Database, it indicates that the S-Spec Code for that processor is SR0PL. The leaked Chiphell photos of the 3770K and it's box indicate that those retail boxed versions also have the S-Spec code SR0PL. Those processors have been tested in CPU-Z and are Stepping 9, or E1. If there were a new stepping coming, Intel would have needed to list it in the MDDS database a month of two prior to launch. Thus, E1 will be the retail stepping. There may be a new steping in the works for later on, but there is no evidence for or against that theory.
Click to expand...

Payed 499$ for the 3770K's and 320$ for the 3570K

The 3770K is down to 439$ on Ebay ATM

This thing is running HOT @ 1.35v with 1.78PLL i'm peaking at 77C after 20min of Prime95 and then i'm stopping it. That is with 10C water temp!! HT is generating a LOT of heat here.
Click to expand...

http://www.overclock.net/t/1242313/...mparison-3770k-on-the-way-d/460#post_17033816
 
All of these E1 chips 3570k and 3770k have been behaving exactly like TOPPC's E0 and XS' leaked E0 and the Tweaktown E0 as far as the limits and temps.

The real question is whether the Costa Rica chips are going to be any different from the Malay chips.
 
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Comparing temps and volts is pretty useless unless all CPUs need the same volts to overclock to the same speed. Don already had a bios update which reduced the volts required to overclock (1.236v @4.5ghz if I am not mistaken). As I keep pointing out a lot of people think that SB chips need 1.3v to hit 4.5ghz+ when in reality this is only the case for a few % of chips and the rest don't overclock nearly as well.
 
Does it actually put out more heat or is it that it just runs higher temperature? Also is the temperature sensor in the same place?

Will Ivy bridge use less power if both aren't going for max overclock?
 
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