Originally Posted by Art Vanelay
wow, 1.6V. Are you going subambient to do that? Will the chip even survive for a long time at 1.6V?
I've been pushing 1.6vcore on my 8350 for about 6 months, 1.57v for the time before that. On a water loop.
Basically non-avx code only pushes it into the 50s or 60s on my rig, but heavy duty AVX code in Gentoo can push it into the 80s, where it just like locks up for a little bit and then does some sort of throttling where it doesn't break 55c anymore.
The AMD chips can take a beating, and that is why I love mine so much. In fact, I have toasted two Intels in my life time (a P4 Prescott and my i7 920, the i7 920 is just kind of degraded though while the p4 is useless at half of stock frequency). My Opteron 165 and FX 8350 show no signs of degradation. My personal experience with pushing things too far is that Intel actually handles higher voltage and higher temps (beyond manufacturer's maximum recommendation) much, much worse than AMD.
Sandy has really dumbed down overclocking to the point where people think you should be able to throw an Evo 212 on it, raise the multiplier, and then walk way. All of the P4s, the Opteron, and FXs I've overclocked all scaled with better cooling.
IB and Haswell just flat out simply don't, unless you straight up delid it. There is no "I totally just jerry-rigged this Vantec Tornado onto my heatsink and built a shroud out of an erector set and cut a hole in the side of the case to feed the tornado, and I got an extra 200mhz out of my chip!" with IB and Haswell. It's depressing, because it's raised a generation of overclockers who think that doing things like that is completely idiotic and poor engineering by whoever made the chip. It's simple physics, there's just something fundamentally broken with IB and Haswell.
It's going to be interesting to know if this new Vishera chip has extra headroom or not. Even if you could squeeze an extra 25% out of it by going to water (which I would highly doubt), that'd put you at 6.25ghz.
But I feel like I'm dreaming, I wouldn't expect this chip to overclock much more at all unless there's some sort of serious magic going on in this chip and AMD actually did something creative, but with AMD's resources I can't imagine them doing something like a special run of chips with RCM or some sort of power gating or something.
Regardless, I think some of you need to lay off of AMD for doing this. Intel has basically just friendzoned and given the finger to all Intel enthusiasts, and AMD is here saying "we know you guys would rather raise vcore and frequency as opposed to cut power consumption and we're gonna do the same thing."
At the very least I would call 220w "enthusiast TDP", probably kind of as a joke. But hey, pretty much all of us with OCed rigs are at 200w+, regardless of if your chip ships at 74w or 130w (IB power consumption would go up higher than FX because the IB would get a higher percentage overclock).