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any estimation on SBE OC capability?

post #1 of 4
Thread Starter 
Given that the GPU got carved away and NB moved in how do you guys think it will affect the chips OC ability? Looking at sb xeons as example the igp was worth approx 15w yet even the 4 core SBE will have 130w tdp which in comparison to the 95w quad core SB would make the NB worth 130-(95-15)=50w. thats a lot of extra heat to deal with on the chip
post #2 of 4
i would agree but if you look at the i7 990X that also has a 130w thermal loading and it could overclock to 4.5ghz under water with no real heat issues. given that Sandy Bridge runs a lot cooler than the 1st gen i3,i5,i7's and Sandy Bridge E is designed from the Sandy Bridge Architecture i would imaging that 5ghz under water would be doable. however i would want to see some better boards than what has been seen, i wouldnt trust some of these gigabyte prototypes if they went into mass production.

just for a comparison of 130w processors and heat, i can run my i7 930 to 4.5ghz and still manage the heat with my loop.
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post #3 of 4
Since Sandy Bridge E does not rely on BCLK to overclock, I think maximum OC performance will be similar to Sandy Bridge without E.
Sandy Bridge E will have RCR (Reference Clock Ratio).
If you didn't know about RCR, it is you CPU & Memory Clock Ratio. Increasing RCR will not affect SATA, USB, or North Bridge Speed. It only affect your CPU & Memory clock speed. So, there will be less problem and increasing BCLK.
You can adjust RCR between 1.00, 1.25, and 1.66.

The Clock Speed formula on Sandy Bridge E will be BCLK * RCR * Multiplier.
A little bit different than standard clock speed formula which is BCLK * Multiplier
    
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post #4 of 4
Thread Starter 
Quote:
Originally Posted by Bima Sylirian View Post
Since Sandy Bridge E does not rely on BCLK to overclock, I think maximum OC performance will be similar to Sandy Bridge without E.
that makes no sense
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