• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

Intel Core i7-11700K Review: Blasting Off with Rocket Lake

timorous said:
Well he is not really testing temperatures. He mentions it because it gets pretty high under AVX 512 workloads but since they don't really have temperature graphs in a more real world workload as long as the coolers are enough to allow the CPUs to run at 'stock' settings without artificially restricting their boost behaviour then that is 'good enough' which seems okay to me. He is not exactly disadvantaging the Intel system here.
Click to expand...
Well he is really testing temperatures otherwise he would not make any reference to temperature at all. ;)

Our temperature graph looks quite drastic. Within a second of running AVX-512 code, we are in the high 90ºC, or in some cases, 100ºC. Our temperatures peak at 104ºC, and here’s where we get into a discussion about thermal hotspots.

There are a number of ways to report CPU temperature. We can either take the instantaneous value of a singular spot of the silicon while it’s currently going through a high-current density event, like compute, or we can consider the CPU as a whole with all of its thermal sensors. While the overall CPU might accept operating temperatures of 105ºC, individual elements of the core might actually reach 125ºC instantaneously. So what is the correct value, and what is safe?

The cooler we’re using on this test is arguably the best air cooling on the market – a 1.8 kilogram full copper ThermalRight Ultra Extreme, paired with a 170 CFM high static pressure fan from Silverstone. This cooler has been used for Intel’s 10-core and 18-core high-end desktop variants over the years, even the ones with AVX-512, and not skipped a beat. Because we’re seeing 104ºC here, are we failing in some way?
Click to expand...

You see I know from my experience, heat pipe based coolers can over many years deteriorate fairly badly, not often but it can happen. This cooler could be going on for 13 years so because he didn't use the same cooler on the Ryzen system then he could be disadvantaging the Intel system or whatever system he uses this cooler on. Though he could be also advantaging the Intel system.

Mr Cutress states that he thinks it is the best air cooling on the market - which market is this, as nobody has been able to buy that cooler for going on over a decade. I would answer his question as if they are failing in some way and say yes you are, by using different coolers and one of them from 2008.
 
Should have just done the standard approach of using the same cooler.

We're not talking TR cpus where its so much larger it raises questions about using a normal cooler.

I feel it was rushed to get a FIRST review out.
 
Also - Noctura say heatpipes dont `go bad` on there own (and neither do vapour chambers) :

Greetings from Noctua!

Thank you very much for contacting us.

In theory it could happen that a heatpipe becomes leaky, thus losing the vacuum inside and its function gone. However, either this happens very early in the beginning already, in case of a production error, or after mechanical damage to the heatpipe, but not suddenly by itself.

As far as I can tell you have recently switched to a newer platform (AM4).
From tests with AM4 CPUs in our lab we know that the heatspreader of the CPU has an elevated outer edge, similar to a ring. A cooler with a flat base, like the NH-U12, will thus sit on this outer "ring" but won't have good mounting pressure in the middle, resulting in worse temperatures. This is one of the reasons why all current models from us, and most current heatsinks from other brands as well, come with a slightly convex base to make sure the mounting pressure is best where the chip underneath the heatspeader sits.

We can't guarantee that this is the reason for the temperature difference but it seems very likely, based on our internal tests and information we have about this matter.

Kind regards,
Your Noctua Support-Team
Click to expand...

Taken from Does a cpu cooler with heatpipes degradate over the time? [Noctua NH-U12P v1] | Overclock.net
 
MartinPrince said:
A much better review where they use the Corsair H150i Pro on ALL CPU's and also the motherboard is the same level as the Asus ROG boards.
Click to expand...

Gets the same conclusion, especially now they have updated the results with the 0603 BIOS. Small gains over the 10700K, behind the 5800X.

Still hits 192W and 76 degrees in Y-Cruncher with the new BIOS that fixes the AVX 512 issue the older one had.
 
Harlequin said:
Also you are now comparing an aircooler to water.... would you also like to add LN2 to this?
Click to expand...
You seemed to have missed it, I'm not comparing anything. I am saying they (German review Purgatory linked) used the same cooler on ALL their systems. I also said the True Cooper could be performing much better than the U12s.

My point so you know what to argue against is:
One should not unnecessarily use different coolers or vastly disparate motherboards on systems when reviewing them.
 
Last edited:
timorous said:
Gets the same conclusion, especially now they have updated the results with the 0603 BIOS. Small gains over the 10700K, behind the 5800X.

Still hits 192W and 76 degrees in Y-Cruncher with the new BIOS that fixes the AVX 512 issue the older one had.
Click to expand...
Yes, the Intel-can-do-no-wrong people here and elsewhere were always clutching at straws expecting major performance boosting BIOS revisions this late in the game. Most last minute changes are about stability, and if anything tend to make things slightly slower.

EDIT: missed the bolded no, totally changing my intented meaning :)
 
Last edited:
Grim5 said:
The wick inside the heatpipe can dry out, it requires high temperatures - if the temps go high enough little vapour bubbles form inside the pipe, these air pockets can prevent the wick from being submerged leading to it overheating and drying out
Click to expand...

The claim was was about heatpipes failing to do their job from old age.

You're talking about overheating a heatpipe so the wick can't function. But that's a temporary effect and while this intel chip might be hot it's not that hot.
 
Hotwired said:
The claim was was about heatpipes failing to do their job from old age.

You're talking about overheating a heatpipe so the wick can't function. But that's a temporary effect and while this intel chip might be hot it's not that hot.
Click to expand...

Oh yeah, I don't think age is a factor. If the pipe is perfectly sealed then it should operate at peak efficiency - same as a closed loop water cooling AIO, they can last as long as the loop remains sealed. I don't actually what temp is required to damage a heatpipe, it seems to depend on heatpipe design and thickness with thicker pipes withstanding higher temps -
 
According to the HardwareLUXX review, in it's current state, the 11700k is beaten by the 5600X in all but 1 gaming tests (min. fps), and the 5600X has a lower price and includes a CPU cooler. Maybe microcode updates will gain a few more fps in final reviews, but Intel is scraping the barrel.

Maybe Intel should start offering CPU coolers with K models, might be a better offer then?
 
Last edited:
KompuKare said:
... and if anything tend to make things slightly slower.
Click to expand...
Precisely. An updated bios with new microcodes can also slow things down - as I well know as I'm having to use a modded bios on my Intel system with the older, but faster microcodes as there is a noticeable performance hit with the newer ones, so those Intel-can-do-no-wrong people could still be a little disappointed come April.
 
You must log in or register to reply here.
Back
Top Bottom