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[XC] gomeler - I come to the news section to ban people, not read complaints.
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Last edited by Manicdan; 04-24-2012 at 08:40 AM.
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I don't understand the purpose of quicksync. It has worse quality and speed compared to x264 --ultrafast preset.
Did you do any iGPU + memory overclock bencharking?
Plase share the link,
Thanks,
bruno
i think semiaccurate did an article on igpu overclocking, conclusion it didnt gain much
id be more interested if somebody donated their cpu to the cause and took the heat spreader off and then OC'd it see if that helps with heat disapation
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According to Anand, QS is 2x faster then Handbrake with acceptable image quality.
http://www.anandtech.com/show/5771/t...770k-review/21
I don't see any screenshots of the x264 encode. And where is the original pre encoded screenshot?
+1 on the IHS exercise
I think:
- There must be a bigger-than-usual thermal resistance bottleneck between the IB die and the IHS. IB apparently draws less power than SB at the same clock, yet its on-board thermal sensor says it runs hotter with the same cooling setup. Assuming that the thermal sensors have the same accuracy, the laws of physics say that for this to happen, our external heatsink must run cooler when on IB. Has anyone checked? (Putting an ordinary thermometer in the airstream downwind of the HSF would tell us).
- [[I have an idea that]] Someone posted in another thread that the IB chip is not soldered to the IHS and uses some yucky old TIM instead ([Edit]: http://www.xtremesystems.org/forums/...preader-Report[/Edit]), in which case it may be comparatively easy to remove the top of the IHS. Hopefully you wouldn't need to electrically insulate the top of the chip from the external HS that you'd then install.
Maybe try removing the IHS from a dead chip; next level would be to do it with the cheapest IB chip available.
If the problem is due to the surface of the silicon being microscopically rough instead of flat as with conventional 2-D transistors, removing the IHS may not help much though.
Sorry, but I don't have an IB chip dead or alive, or a sponsor, or a Newegg or a Microcenter or anyone else who will sell me an IB at a cheap price.
@hokiealumnus: Thanks for your review. Re the temperature of IB vs SB, what no-one else has suggested is that if you want to state a % difference, you should be talking about the rise above ambient. That eliminates the problems with quoting above absolute zero, and also cancels out the differences between the Fahrenheit and Celsius scales.
And those of us who are looking at these chips not for gaming, benching or personal status, but to contribute to grid computing projects such as worldcommunitygrid haven't had much of a say here yet. We need high CPU processing output per watt and long CPU life - up to 5 years - at the highest speed that is compatible with those constraints. It's disappointing that IB does not seem to enable that speed to be pushed much higher if at all, but the saving in power consumption is significant.
I'll wait a month or 2 to see whether bugs appear in the new architecture or whether any improved steppings come along, then upgrade to IB. I have a very sick 2600K that is hanging onto life by a whisker at 4.2GHz and its max Vcore without further degradation of 1.23V and memory at its max stable clock of 1066MHz , plus a couple of 45nm C2Qs that are great machines but they've gotta go, in the face of imminent huge increases in electricity costs here.
Last edited by BlindFreddie; 04-26-2012 at 03:36 AM.
blindfreddie, it is hotter with less voltage because the chip is smaller. the IHS is probably really well made and fastened on. it is just a curiosity that removing it and directly connecting to something else might help.
I use 2600K (about 30 of them) right now.. You can check the quality of the encoding in the Anandtech original SB article.
The speedup that IB brings to the table (at least in my usage scenario) is just amazing. And Haswell cannot come soon enough .
Intel Core i7-3770K et i5-3570K : Ivy Bridge 22nm - Hardware.fr
Very interesting, as usual
old bartons were 101mm2 and 75W doesnt have the problems like ivy.. i could make it stay cool under 2500MHz like 65-70C.. it should be near drawing 150W or so and even smaller diesize than ivy relatively..
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Man from Atlantis(B3D, DH, S|A, 3DC, OCN), MfA(G3D, CH), kaktus1907(XS,TPU,AT) and zennino
SIS 6326 > Ti 4200 > 9800XT > 9800GT > GTX 460
Celeron 366 > Celeron 1700 > Athlon XP 2500+ > E6300 > Q9650
Alice Madness Returns | Assassin's Creed: Brotherhood | Assassin's Creed: Revelations | Batman Arkham City | Battlefield 3 | Bulletstorm | Call of Duty: Modern Warfare 3 | Crysis 2 | Darkness II | Darksiders | Dead Island | Dead Space | Dead Space 2 | Deus Ex: Human Revolution | Dragon Age Origins | Dragon Age 2 | F.3.A.R. | F1 2011 | Half Life 2 | Hard Reset | Kane & Lynch 2 | L.A. Noire | LEGO: Pirates of the Caribbean | LEGO: Star Wars III: The Clone Wars | LOTR: War in the North | Mass Effect | Mass Effect 2 | Mass Effect 3 | Mini Ninjas | NFS Hot Pursuit | RAGE | Renegade Ops | Skyrim | The Witcher 2 | Tomb Raider: Underworld | Transformers: WFC | Trine 2
http://www.hardware.fr/articles/863-10/temperature.html- Sandy Bridge : 0.87 watts per mm²
- Ivy Bridge : 1.11 watts per mm²
The decline in consumption is not large enough compared to the size reduction of core, Ivy Bridge is more difficult to maintain in temperature.
Thank you for that; and you're absolutely correct; I didn't mention that but absolutely should have. Ambient was very close to the same between the two within two degrees Celsius. I'm kicking myself for not measuring when I took it, but that room stays very close to 23°C, ticking a degree or two one way or the other (except in the middle of summer, when it can heat up more).
[XC] gomeler - Public note: If you PM me to tell me that I am disrespectful at least have space in your PM box so I can tell you I don't care.
[XC] gomeler - I come to the news section to ban people, not read complaints.
I heart gomeler!
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