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It's here

http://www.maximumpc.com/article/news/long_last_intel_officially_launches_22nm_ivy_bridge_3d_transistors_usb_30

Yay!!! this thing I have been looking forward to has now happened. Now to watch it not affect me at all, as I'm not buying a new CPU for at least 2 years (unless this one dies).

Overclocking + Benchmark
Haswell to go

Anandtech has done their review of the 3770k, and Guru3D has done their review of the 3750k and the 3770k.

http://www.anandtech.com/show/5771/the-intel-ivy-bridge-core-i7-3770k-review
http://www.guru3d.com/article/core-i7-3770k-and-3750-review-with-z77/26

The Anandtech review takes a more cautious approach to overclocking, including cooling and other factors. Guru3D just goes hog wild and leaves the cooling up to the user lol. It was interesting comparing the two, to be sure. Just make sure you check the temperatures on the Guru3D article, they hit 90C repeatedly!



Anandtech also did this report - http://www.anandtech.com/show/5763/undervolting-and-overclocking-on-ivy-bridge . It's an excellent overview of how the Ivys overclock. They definitely perform alot different than Sandys.

Quote:Ultimately, Ivy Bridge hates voltage. Moving the CPU speed up is not so bad in the case of temperatures and system power draw. What you need is the lowest voltage for the overclock you want. So when you overclock, be methodical.

As said before in the leaked testing, they do get ALOT hotter during overclocks when voltage is increased, but they are stable at much higher temperatures than Ivy Bridge. Ivy could very well be able to run at 80-90C under load and be perfectly safe, but we'll just have to wait a few months to really get to know them before it can be said for sure. Plus, Ivys overclock alot higher and have more performance per clock, so with water they are amazing.

After the NDA lift, Intel released their documentation on the Ivy Bridges. It states the maximum temperature for the CPU is 99C. Lines up pretty well with the testing: at 100-105C it starts underclocking.



This article explains the bizzare TDP mixmatch. - http://www.nordichardware.com/news/69-cpu-chipset/45738-ivy-bridge-sells-with-95w-tdp-but-uses-a-maximum-of-77w.html

Basically, the max TDP of Ivy Bridge processors is 77W. However, Intel is worried that motherboard manufacturers will get greedy and skimp on VRM and power supply sections so they only handle 77W. Intel really wants to retain full 95W compatibility on the Z77 chipset, both for Sandy Bridge compatibility and for possible future Ivy Bridges, so they decided to label the platform as 95W and put that on the CPU boxes. Yea... not sure that makes much sense either. But still, despite the boxes, apparently the TDP is 77W for the 3750k and the 3770k.

*rushes to nearest computer hardware store*
*suddenly realizes he's broke*

(04-24-2012, 07:04 AM)Zee530 Wrote: [ -> ]*rushes to nearest computer hardware store*
*suddenly realizes he's broke*

This ^^, but not broke just too poor to go buying a new computer every year

Quote:Basically, the max TDP of Ivy Bridge processors is 77W. However, Intel is worried that motherboard manufacturers will get greedy and skimp on VRM and power supply sections so they only handle 77W. Intel really wants to retain full 95W compatibility on the Z77 chipset, both for Sandy Bridge compatibility and for possible future Ivy Bridges, so they decided to label the platform as 95W and put that on the CPU boxes. Yea... not sure that makes much sense either. But still, despite the boxes, apparently the TDP is 77W for the 3750k and the 3770k.

This makes a lot more sense. It turns out I was right to be skeptical.

Quote:As said before in the leaked testing, they do get ALOT hotter during overclocks when voltage is increased, but they are stable at much higher temperatures than Ivy Bridge. Ivy could very well be able to run at 80-90C under load and be perfectly safe, but we'll just have to wait a few months to really get to know them before it can be said for sure. Plus, Ivys overclock alot higher and have more performance per clock, so with water they are amazing.

This also makes sense. This is clearly the result of the transistor design, not the die size.

Toms review of the 3770K - http://www.tomshardware.com/reviews/ivy-bridge-benchmark-core-i7-3770k,3181.html

Techspot reviewing the 3770K - http://www.techspot.com/review/523-ivy-bridge-intel-core-i7-3770k/

PC Perspective review of the 3770K - http://pcper.com/reviews/Processors/Intel-Core-i7-3770K-Ivy-Bridge-LGA1155-Processor-Review



Pretty much the same as the others. If you have sandy bridge, it's not worth it. But if you have a C2D and are planning to upgrade (me), the Ivy Bridge wins against the compatible Sandys, but if you are overclocking it you have to be careful and methodical. I'll be going with either a 2600K (found a steal) or a 3750K.

Wow....just wow. I can't believe people are lapping up Intel's lame a** excuses and dishonesty about the Ivy Bridge TDP. Thermal design power has everything to do with how much thermal energy a cooling solution for the cpu will have to dissipate and NOTHING to do with how much you will save in your electricity bill.

Intel are fully aware that these 'professional' review sites don't understand what the term TDP means and so are finding it easy to pull the wool over their eyes.

The i7 3770k runs significantly hotter than the i7 2600k and should therefore be labelled with a higher TDP, somewhere in the region of 125W. This can be seen by looking at the graph below from 'Tweaktown', if you assume the 2600k is 95W and then normalise the graph.

http://cdn5.tweaktown.com/content/4/6/4673_43_intel_core_i7_3770k_lga_1155_ivy_bridge_cpu_review.png

I also find it very disappointing that a lot of popular review sites didn't even publish thermal results( cough 'Anandtech'). I also see no evidence so far to suggest that Ivy bridge is any more resilient to heat than Sandy Bridge, and is something we won't know until Intel publish the Tcase and Tjunction for the cpus. It's important to remember that even a 10degree C thermal differential in average cpu usage can halve its life expectancy.

One last point, Ivy bridge is supposed to be much better for notebooks, but as the owner of 2 Sandy bridge ones (one was given to me in work), the biggest problem I have with them is excessive heat and irritating fan noise. Surely Ivy Bridge will just make the problem worse.

Sorry for the rant, but as a consumer I wish companies like Intel were more transparent and honest about product information.

(04-24-2012, 08:54 PM)bret emerald Wrote: [ -> ]It's important to remember that even a 10degree C thermal differential in average cpu usage can halve its life expectancy.

Infinitv / 2 = Infinitiv
... give some proofs about the average cpu lifetime ...
Intel CPU Cooler(Full Load) = 80°-90°
x-Custom CPU Cooler(Full Load) = 40-50°
+ 1ghz overclock
= so overclocked my cpu holds 6times longer than with stock cooler?

give some information about the expected lifetime of a cpu silicium is really resistent to heat and aging