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post #291 of 690
Quote:
Originally Posted by Eggy88 View Post

1.1v is my 3570K's VID so that should be pretty close to stock. Note that this is not your everyday cooling.

Yeah I just saw that he was using really cold liquid cooling. So that means air cooling users may be in trouble with Ivy when overclocking.
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post #292 of 690
Nice benches but the Ivy doesn't seem to offer that much of a improvement over the Sandy? I mean if i had the Sandy used in this bench i really wouldn't bother getting the Ivy since it's running hotter and all!
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post #293 of 690
Quote:
Originally Posted by gplnpsb View Post

Quote:
Originally Posted by Sujeto 1 View Post

Ivy bridge seems to be the greatest FAIL of Intel. that happen when you have not competion, you get LAZZY and stupid.

The Sandy Bridge chipset SATA bug was a much bigger problem and a fail in every sense of the word. When Pentium IV was introduced in November 2000, the top 1.5GHz part couldn't definitively beat a 1GHz Pentium III, even while using considerably more power. In a public relations catastrophe in 1994, Intel detected but failed to disclose the FDIV bug in an initial batch of Pentium processors. The bug was eventually disclosed by a professor.

Intel has certainly had a few failures to contrast with it's enormous success. Ivy Bridge may be a disappointment, but that disappointment is more a symptom of the difficulty of taming sub-30nm processes than a true failure. Intel has taken their time with Ivy Bridge and has conducted an extraordinary 9 re-spins of Ivy silicon before release. My guess would be that most of the design related issues have been ironed out, and process improvements are now the task at hand. I'd be surprised if we see a new stepping that drastically decreases power consumption. Hopefully the 22nm process will be as mature for Haswell as the 32nm process was when Sandy Bridge launched.

I agree, we probably won't see a new stepping that reduces power consumption, it's already lower than Sandy and I doubt they are looking for much more than that; but I think it's possible that we could be seeing a stepping in the near future where the heat-transfer issues are resolved. If Intel finds a way to more effectively transmit the energy to the IHS we will likely see drastically reduced temps in the future! thumb.gif
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post #294 of 690
Quote:
Originally Posted by MiyukiChan View Post

Nice benches but the Ivy doesn't seem to offer that much of a improvement over the Sandy? I mean if i had the Sandy used in this bench i really wouldn't bother getting the Ivy since it's running hotter and all!

That is how it appears to be. I was suggested to purchase a Z77 motherboard to overclock a Sandy Bridge 2500k because certain Z77 boards allow better overclocking.
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post #295 of 690
Thread Starter 
Quote:
Originally Posted by r0ach View Post

The takeaway from this thread is:
Infernobridge vs Sandy bridge under load = IB is 44% hotter at 1.3v, 36% hotter at 1.2v, and 16% hotter at 1.1v
Terminal, exponential thermal curve reached at 1.2v !
Seeing as how Lynnfield to IB migration had load temps go down and the chips still used the same amount of power as lynnfield, I can't wait to see an Infernobridge killawatt readings at load for anything over 1.1v since heat increase causes power use to go up.

I honestly don't think it's the wattage that is the problem here. IB is a die shrink and because of this the W / mm^2 is much higher then SB, i think this is the cause of the problem, the area is just not big enough to dissapate the heat so the Delta T between the IHS and the heat sink is very high.

I'll do a wattage reading on the rig tomorrow and see how that goes and also do a 1.4v test to see if it keeps scaling up or if it levels out.
Quote:
Originally Posted by HydrogenHuman View Post

Yeah I just saw that he was using really cold liquid cooling. So that means air cooling users may be in trouble with Ivy when overclocking.

I'm pushing 1.3v here, it may not seem that much, but i think i have a bad chip and users like punceh have been able to reach in ~4.8ghz with ~1.225v so if that is the average chip or just a decent one it's not to bad. He is using a high end air cooler. With a good custom loop, i would think it would be possible to keep the cpu under 70C load with 1.3v with HT on

I honestly don't think IB is to bad, i mean when the large number of chips start rolling out i would guess that 50% of them will do ~4.4Ghz on 1.2v. At that voltage with HT ON a decent air cooler will be good enough. On an average water loop most chips will see 4.7Ghz and a good water loop will be able to push most chips towards 5Ghz (that is close to a 5.2Ghz SB). Find a good chip and a good water loop and i would not be surprised if we see 5.2Ghz 24/7 runs and that is the equivalent of a 5.4Ghz SB.

In addition to that we have PCI-EX 3.0 support, and some other goodies.

But this are all just speculations and estimates based on what i have seen, to be 100% sure we just have to wait another week.
Edited by Eggy88 - 4/17/12 at 7:31pm
post #296 of 690
Eh, I'm still skeptical. Punch was able to get alot better results with air cooling, so that would imply that Eggy's 3750k may just be a dud. Personally, I'm not going to judge the entire line till I get some more concrete info.
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post #297 of 690
Quote:
Originally Posted by HydrogenHuman View Post

That is how it appears to be. I was suggested to purchase a Z77 motherboard to overclock a Sandy Bridge 2500k because certain Z77 boards allow better overclocking.

I don't know where you get this fact, every z77 reviews outhere are informing the same overclock level, not worst not better the same exactly, http://www.xbitlabs.com/articles/mainboards/display/intel-z77_6.html#sect0 Those Z77 motherboards should be called Z68 plus, this is it, if you want to believe something that is not true, go on. Even me that need an upgrade from a 5 years ago rig, i refuse to get this cheese. Im getting a 2500k when i can.
Edited by Sujeto 1 - 4/17/12 at 7:36pm
post #298 of 690
Quoted from Chewy earlier today:
Quote:
I bought a Z77 fatal1ty pro and managed to squeeze an extra 300mhz out of my 2500k to over 5ghz with alot less volts and reading through reviews this seems like the norm and Z77 is doing good things for sandy cpu's.

I would stick with a 2500k and perhaps by a high end Z77 board with plenty of power phases ie: Asus P8Z77-V Deluxe or the Asrock Z77 fatal1ty Pro. to yield the best overclocking potential

The 2500k is a monster gaming cpu and it cannot be beat for it's price
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post #299 of 690
Quote:
Originally Posted by Sujeto 1 View Post

I don't know where you get this fact, every z77 reviews outhere are informing the same overclock level, not worst not better the same exactly, http://www.xbitlabs.com/articles/mainboards/display/intel-z77_6.html#sect0 Those Z77 motherboards should be called Z68 plus, this is it, if you want to believe something that is not true, go on. Even me that need an upgrade from a 5 years ago rig, i refuse to get this cheese. Im getting a 2500k when i can.

Cheese? You looking for cheese? See Bull Dozer! wink.gif It's not as bad as your making it out to be!rolleyes.gif
For those who don't OC or don't go for the higher clocks (4.7-5ghz). I think it's pretty good!
If you like to run a modest OC of around <= 4.5ghz, this is the way to go I'm thinking! thumb.gif
Edited by Tom Thumb - 4/17/12 at 7:53pm
 
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post #300 of 690
I already saw the marketing of tomorrow " We know IB result to be garbage, but hey! you still can get Z77 for OC your 2500K, it supossed to OC more than Z68, why..? well a friend told me that, don't read reviews from reputable sites, anyway we still need to sell those F. motherboards "

and i know about AMD and his faildozer but Intel is working to take that crown also.
Edited by Sujeto 1 - 4/17/12 at 7:53pm
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