Intel Core i9 7900X processor review
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Aura89
So, if this thing requires this much power, what is the 18 core going to require..?
zer0_c0ol
A Fermi 😀
Loophole35
I don't think you understand what I was asking.
Pair it with a Hawaii GPU and heat the whole house.
zer0_c0ol
Dude I can live without my central heating... WOHOOO!!!!
All in all the x299 is a Fiasco, the KLX is garbage that is slower than the KL and more expensive, the 7900x is a hot MESS , the boards are full of bios and firmware bugs , the only shinning light is the 7820K.. TR will bury this easily
schmidtbag
To further clarify - this isn't an Intel problem, this is a physics problem. The hotter the CPU gets, the more voltage it needs to remain stable. But the more voltage you put into it, the hotter it gets. So it's a self-promoting issue. As you push a CPU harder, the vcore will drop, where you need to add even more voltage to compensate.
When you've got 10 cores with a crappy IHS, the temperature+voltage problem amplifies itself really quickly.
Loophole35
It's not global warming, God is an Intel user.
I understand this I don't think you understand what I was asking. I would like to see a before and after delidding with an identical overclock to see if lowering the temperature brings the power consumption in line.
zer0_c0ol
lmfao :d
Denial
Hmm, 10 core has two FMA's per core, 8 and lower only have one. I find that weird not that it effects me. I wish there were more in depth reviews on the 8 core -- sucks that the EU tech reviewers got shafted by Intel, EU sites usually have the best reviews =\
schmidtbag
I know what you were asking, I was just clarifying for those who may not fully understand the situation; my statement wasn't made out to you specifically. Anyway, I too would like to see results after delidding.
airbud7
That thing is Fast!...Nice review Boss!
Loophole35
Gotcha:thumbup:
zer0_c0ol
Bad marketing.
You don't release a space heater in the middle of summer.
Loophole35
Well it was originally set to release right before winter to be fair.
zer0_c0ol
True 😀
vbetts
Moderator
I think Loophole won the internet with his post lmao.
But damn those temperatures though! You need this in a server room with AC blasting and a custom loop just to keep it cool enough to run! Hopefully one would assume these are highly binned cores, so they should be able to handle high voltage and high temperatures.
zer0_c0ol
If you are referring to the space heater in the summer, that one was mine 😀
Agent-A01
Eh?
Your whole system is a power hog too.
Anyways this is a engineering sample.
Could change with retail plus on H20 or delid the power consumption will be inline with 6950x likely.
zer0_c0ol
Just check the toms hardware,, there is no way around ir the CORE i9 is a power hungry hot mess
Denial
FYI AVX2 & FMA are enabled on the Prime95 test for Toms. So it's not an apples to apples comparison against Ryzen. The gaming loop power test they did is more in line with real world results. There is a 35% power gap there, but the 7900X has two additional cores and obviously performs slightly better.
So honestly it's not that bad so long as you aren't power testing it with a full AVX load. The 8 core should be fair better in torture tests because it only has one FMA per core.
I don't know what cinebench uses though, isn't much information on it.
TieSKey
With increasing turbo modes/names, I'd like to see some kind of test on turbo availability/sustainability. What I'm trying to say is, test the % of time the cpu can be at a given clock speed.
For instance, the i7 on my laptop has a turbo clock for 1 core of 3.8Ghz, but even in winter (15C on room) it quickly hits the power and/or thermal limits. So in the end the 3.8Ghz is more of a PR item than a real thing.
Of course this get smoothed on benchmarks since they run for long enough but I bet a LOT of people will think something in the lines of "ooh, 10 cores and a super high turbo for gaming, take my wallet", when in reality, the cpu will probably run at almost base speeds avg while gaming.
