Friday, June 16th 2017
Core i9-7900X Skylake-X Review Shows Up
An Intel Core i9-7900X has appeared for a full review at the site Hexus.net. Spoiler alert, it clocks to 4.7 GHz on all ten cores with relative ease (only taking 1.25 V, apparently, though it racked up nearly 100°C in Cinebench at that voltage).
The review praised Intel's overclocking headroom and general muscle in a mostly positive review. Still, not all is rosy in Intel land. They found performance per watt to not have improved much if at all, criticized the high price tag, and Hexus.net had the following to say about the overall experience:
"X299 motherboards don't appear to be quite ready, there are question marks surrounding the Skylake-X processors due later this year, and at the lower end of the Core X spectrum, Kaby Lake-X is nothing short of puzzling."
It would seem AMD is not the only major chip-maker who can have motherboards ill prepared at launch time, even the mighty Intel may have teething issues yet.
You can read the full review (which is mostly positive, by the way) in the source link below.
Oh, and a special shoutout to our own @the54thvoid for discovering this article.
Source:
hexus.net
The review praised Intel's overclocking headroom and general muscle in a mostly positive review. Still, not all is rosy in Intel land. They found performance per watt to not have improved much if at all, criticized the high price tag, and Hexus.net had the following to say about the overall experience:
"X299 motherboards don't appear to be quite ready, there are question marks surrounding the Skylake-X processors due later this year, and at the lower end of the Core X spectrum, Kaby Lake-X is nothing short of puzzling."
It would seem AMD is not the only major chip-maker who can have motherboards ill prepared at launch time, even the mighty Intel may have teething issues yet.
You can read the full review (which is mostly positive, by the way) in the source link below.
Oh, and a special shoutout to our own @the54thvoid for discovering this article.
247 Comments on Core i9-7900X Skylake-X Review Shows Up
Why do you think 70*C is "hot" for a CPU?
It's the reason why reference GPUs, though generally noisier then AIB GPUs are sometimes preferred: because they expel the hot air directly off the case instead of into the case (to be extracted by case fans afterwards).
As an example: when i play a game for an extended period, my HDD's temps increase by around 8ºC, even though i have a 20 cm intake fan in front of the HDDs and 2 exaust top fans + 1 back exaust fan (all 12 cm). Why? Because my GPU is an AIB one and dumps the hot air inside the case, thus increasing the ambient temp inside the case.
Obviously some of those arent past their warranty, but, Im guessing you get the picture.True... but big deal! ;)
It's not like those components are going out of their spec either! A few C warmer doesn't hurt most components...
I compare because they worked on same voltage 1.200V. But hot air from H100 (exhaust) is hotter with i7-5820K than with i7-3770K.
That mean that with thermal paste transfer of heat from CPU to H100 block/liquid/radiator was not well and a lot of heat stayed inside in CPU and H100 was able to remove only small amount of heat 40-50% example compare to 70-80% with i7-5820K. This numbers are not exactly accurate but example... And no matter what you do before change something under IHS or maybe even than you can't get better temps with much expensive coolers, I mean you get better temps but maybe 20C. No way to processor stay 60C on huge ammount of voltage and clock if liquid is cold in some expensive custom loop. Only way is to freeze CPU with LN2 or phase change or dice.
I think that's biggest mistake for X299 thermal paste.
Because some people are confused, they want to OC, but what to do, they remove IHS, and than what, how much paste, how to do that... You need to be far more precise than installatin paste on IHS and CPU block over that. Than questions after installation... Did I done everything nice, maybe die no contact with IHS any more, maybe is to much paste... What will happen if CPU die, people used on Intel OC warranty, to pay 30$ more and OC.
Positive thing is because Intel go with Intel Turbo Boost 3.0 and that mean CPU specification is 4.3 and 4.5GHz and everyone know with such high Turbo space for OC is 200-300MHz.
And many people will not OC, imagine Turbo 3.9 GHz and people try to reach 4.6-4.7GHz with paste.
That would be bad. Intel is not probably so stupid to say Turbo Boost 3.0 if CPU throttle and can't cool down with AIO cooler on fabric Turbo frequency.
From other side Ivy Bridge worked one night and more 15h test on more than 90-90C, he behave like 50C.
Nothing, no problems at all. I can't guarantee that now CPU could work on such high temperatures without throttle.
I didn't OC mine Haswell-X over 4.2GHz because I want to stay on 60-65C and don't want fans on high performance to work on more than 2000 RPM.
It would be bad if people figure out that i9-7900X work on 80C on 4.5GHz. I think they change something, because i7-5960X and i7-6950X are hot as hell on 4.5GHz.
Only people with watercooling and 280mm AIO with good samples are capable to keep on such clock and small voltage, and flux solder help a lot in that case.
I like how you keep repeating the same thing OVER AND OVER without a bit of data to support your thoughts... maybe people will believe it eventually... :rolleyes:
Since then, the ambient temp has increased (expected since we're nearing the Summer): as such, should i game for an extended period, the temps would probably exceed that.
Disregard the 49ºC in the pic: there was something wrong with the temp sensor in the program @ the time.
If you are using several drives, do something about it cooling wise IF NEEDED.
Everything is to 'people's liking and preference'...which is fine, but still within operating parameters which seems lost. 90c is dubbed 'insane' yet its within operating parameters... 44c hd is too hot for someones liking...but within operating parameters...
I worry when i break those values for extended periods, but here nobody has even hit them. ;)
Yeah, do something, like get a CPU that runs cooler/can transfer heat properly.
I've hit 61 while doing a build in the summer with many hard drives. I was still testing stuff with the open case with no case fans mounted and I just forgot to check temperatures.
61C... cool.. well, not cool, lol!? I mean, i can fight your side too, but, the reality is, fringe siutations (open air stack of drives no fans) need other methods.. for normal operations though, not so much.
The only advantage you get from soldering is that the heat is transferred quickly from the chip to IHS. That's important for the chip, but fairly irrelevant for everything else inside the case.
Current Intel CPUs run hotter than AMD's (because of TIM), but tolerate much higher temperature as well.No. It's because of how the airflow looks in your case. :-)
Your GPU is pushing a lot of hot air downwards, but - as you've said - the fans in your case suck air in front and push it out in the top-rear part.
Essentially, the hot air from the GPU is first sucked towards the HDDs - hence making them warmer.
61C was just an example to your nobody hits 44 comment. The drive in question is an older one (operating range 0-60C) and does run several degrees hotter than the rest, even when not stacked and with a dedicated fan blowing. During the day it stays at around 43-45 and it hasn't been the hottest of summers. There's some tweaking to be done with the fans and I'll probably have to forego any pretense of silence for now.
Anyway, my point is that every little bit helps, and with paste, they've added another element into the whole cool/silent PC equation just to save a little money on very expensive hardware.
BTW: what's the threshold for Ryzen / Threadripper? I'm looking for the Intel's Tcase analogue.
The same cpu running at the same speed and workload will put out the same amount of heat regardless if the cooling system can get it down to 60C or as high as 90C. The difference in degrees between ambient temperature and the die temperature is just a measure of how efficient the cooling system(TIM or solder included) is at removing the heat from the die. Its not a measure of heat output. And thus wont heat the inside of the case any more or less.
A 95W CPU running at 100* is going to put out the same heat as a 95W CPU running at 15* (assuming both are consuming 95W/at load).
(Also, 200mm fans are useless in a PC - dunno why so many TPU users are under any other impression)While this is true, Backblaze's disks, on average, run at a maximum 31*, with a few disks running as high as 38*, so it doesn't really tell us what happens to a disk at >40*
If you look to Google's and Microsoft's results you'll still find little correlation (except at cold temperatures; see links at BB source), but you will see that drives at high temperatures fail sooner than drives at low temperatures in the case of Google, and in Microsoft's case, where drives were allowed to run closer to their operating limit, there's a more obvious correlation at high temperatures.
"within operating parameters..."
Can't imagine that's good for the processor...
SAY WHAT?!
Since the temps there were low... here is a wiki article from google's data showing the same trends with higher temps. ;)
en.wikibooks.org/wiki/Minimizing_Hard_Disk_Drive_Failure_and_Data_Loss/Environmental_Control
I tend to err on the side of caution, I never push things to the breaking point.