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Is 3770k binned higher than 3570k?

post #1 of 11
Thread Starter 
I was testing one 3770k and two 3570ks to get a high super-pi score with sub-zero cooling (-20~-30C)

The two 3570k are so bad that even at zero degree, they require ~1.4V to get 4.8GHz Cinebench stable (I run it at least three times), while the 3770k can easily get 5GHz at the same voltage.

Could it be the motherboard difference? I was testing the 3570k on a cheaper Asrock Extreme4 and 3770k on ASUS P8z77 deluxe.

I know every chip is different, but the difference is big and I started to wonder if 3770ks are binned higher? Anyone can confirm that?
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post #2 of 11
Quote:
Originally Posted by foxrena View Post

I was testing one 3770k and two 3570ks to get a high super-pi score with sub-zero cooling (-20~-30C)
The two 3570k are so bad that even at zero degree, they require ~1.4V to get 4.8GHz Cinebench stable (I run it at least three times), while the 3770k can easily get 5GHz at the same voltage.
Could it be the motherboard difference? I was testing the 3570k on a cheaper Asrock Extreme4 and 3770k on ASUS P8z77 deluxe.
I know every chip is different, but the difference is big and I started to wonder if 3770ks are binned higher? Anyone can confirm that?

I think so, seems like for most OCs the majority of 3570k requires the same or more voltage than the 3770k for the same clocks where the 3770k has 8 threads. Of course there will be great 3570k, but looks harder to get one.
Other is the IMC, out of 5 x 3770k I've had all do at least 2600Mhz memory, I tried one 3570k & it maxed out at 2200Mhz, the IMC just could not do even 2400Mhz.
    
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post #3 of 11
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post

I think so, seems like for most OCs the majority of 3570k requires the same or more voltage than the 3770k for the same clocks where the 3770k has 8 threads. Of course there will be great 3570k, but looks harder to get one.
Other is the IMC, out of 5 x 3770k I've had all do at least 2600Mhz memory, I tried one 3570k & it maxed out at 2200Mhz, the IMC just could not do even 2400Mhz.

I trust your experience, FtW.
It would be too bad, cause I have access to several 3570ks but have no 3770k.... I was hoping to have some 5.5GHz fun at -30C.
Edited by foxrena - 11/15/12 at 3:22pm
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post #4 of 11
Still worth trying, there are great 3570k out there, just looks like it may take more luck/binning to get one. You won't really know until you try them out. For binning on the bot looks like booting 5Ghz under 1.3V (lower the better) is generally more promising for higher ln2 clocks.
    
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post #5 of 11
Thread Starter 
Thanks! I will definitely try that.
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post #6 of 11
Thread Starter 
Another question: Does motherboard really matter for sub-zero overclocking? How much MHz difference there could be between a $125 motherboard and $250 one?
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post #7 of 11
Quote:
Originally Posted by foxrena View Post

Another question: Does motherboard really matter for sub-zero overclocking? How much MHz difference there could be between a $125 motherboard and $250 one?

For the cpu overclock it shouldn't be a huge difference as long as the PWM is good. Once booted into windows the software to get the frequency up a bit from there can make a difference, asus rog has always done well there.
When you have a great chip for benching a board that does well with memory comes in very handy, & some are better than others. A lot of benchers get down to the high end boards right away, don't want to have to get a better board if they do find a golden chip to try for records.

When looking at motherboards I usually look at hwbot to see what kind of results others have done with the one I'm looking at.
    
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post #8 of 11
My 3570k is at 4.8 ghz at 1.35 vcore with just an h100 for cooling. Its been folding 24/7 since September with 0 crashes
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post #9 of 11
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post

For the cpu overclock it shouldn't be a huge difference as long as the PWM is good. Once booted into windows the software to get the frequency up a bit from there can make a difference, asus rog has always done well there.
When you have a great chip for benching a board that does well with memory comes in very handy, & some are better than others. A lot of benchers get down to the high end boards right away, don't want to have to get a better board if they do find a golden chip to try for records.
When looking at motherboards I usually look at hwbot to see what kind of results others have done with the one I'm looking at.

Thanks FtW. That clear things up a bit. I asked majorly because I am seeing unexpercted Vcore fluctuation on my Asrock Extreme4, and the bundled overclocking software is difficult to use. I initially want to save some budget because it is hard to abuse an expensive board. I will definitely get a high end board for Haswell.

Yeah, I am checking hwbot. It looks like there is good stuff there.

Quote:
Originally Posted by labnjab View Post

My 3570k is at 4.8 ghz at 1.35 vcore with just an h100 for cooling. Its been folding 24/7 since September with 0 crashes

That chip is definitely better than mine.
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post #10 of 11
Quote:
Originally Posted by foxrena View Post

Thanks FtW. That clear things up a bit. I asked majorly because I am seeing unexpercted Vcore fluctuation on my Asrock Extreme4, and the bundled overclocking software is difficult to use. I initially want to save some budget because it is hard to abuse an expensive board. I will definitely get a high end board for Haswell.
Yeah, I am checking hwbot. It looks like there is good stuff there.
That chip is definitely better than mine.

The extreme4 is one of the few that doesn't look as good for extreme OCing, fine for daily OCs but not really for freezing & cranking up the vcore. Up until the Formula OC Nick Shih was really the only person doing good with an asrock (the guy who helps design & write bios', also one of the best OCers on the planet). I didn't consider asrock before the formula because the in house asrock pro overclocker (Nick) usually used asus boards when setting records.
    
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