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Intel Core i9-7980XE Hits 845W at 4.9GHz

HKZeroFive
16 minutes ago, HKZeroFive said:

Yes, but why would you pair a i9-7900X with a R9 295X2 in the first place?

I went to this person's house once, friend of my boyfriend, had won a nice prize in the lottery, he had an absurd power eating system that consisted on an i7 6900k with nVidia GTX TITAN Z in SLI rocking on a AX1500i ;]~

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7 minutes ago, Syntaxvgm said:

so now, what if I told you TDP is not actually the power consumption limit, but just a ballpark number that's used for cooling? It's actually often far off from the real draw numbers. Don't factor that in, but it's worth knowing that it's often that the TDP is lower than the peak power consumption under maximum stress.

...but you said it yourself that the FX-8350 is a 125W CPU with no overclock... when the TDP is 125W.

1 hour ago, Syntaxvgm said:

Lets put in a 8350. That's a 125 w cpu with no overclock.

But I digress.

18 minutes ago, Syntaxvgm said:

-snip-

You did read what I said right?

20 minutes ago, Syntaxvgm said:

I'm sure, if you had a power-hungry CPU (be it a HEDT i7 or a FX octacore) and a R9 295X2, overclocked both of them to their absolute limits, put them through a torture test that represents a worst case scenario, then yes, you would be seeing power consumption figures that far surpass the 650W threshold. I'm not dumb enough to contest that.

 

But you could very well run a stock/moderately overclocked R9 295X2 with a mainstream i7 under normal gaming loads on a good 650W unit. Could =/= recommended.

So yes, have power-hungry components, overclock everything, run it through stress tests and it'll surpass that magical 650W figure. I already agreed with that. I thought that was already done with.

 

I'll repeat what I said to @Bananasplit_00:

 

The whole point of your argument is based upon the fact that people will put together the most power-hungry of components, then go the extra step further to overclock them to further increase their power consumption and then go one further by running them through synthetic (read: unrealistic) torture tests that are a worst case simulation. It's a "what if" argument.

 

Don't manipulate the facts to suit your own agenda. I'm not sure what else I can say.

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Be nice to each other boys and girls. And don't cheap out on a power supply.

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This came as no surprise TBH, any CPU with that many cores running at 4.9GHz was going to draw a shit ton of power.

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5 minutes ago, Princess Cadence said:

I went to this person's house once, friend of my boyfriend, had won a nice prize in the lottery, he had an absurd power eating system that consisted on an i7 6900k with nVidia GTX TITAN Z in SLI rocking on a AX1500i ;]~

TnQRX6v.gif

'Fanboyism is stupid' - someone on this forum.

Be nice to each other boys and girls. And don't cheap out on a power supply.

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Just now, HKZeroFive said:

 

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Free money, what comes easy goes easy... back in the day though that was one bloody sexy computer... wanted to cheat on my boyfriend with his friends........................ computer.

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3 hours ago, samcool55 said:

845W with a H105 is really unlikely.

Also, how the hell did they keep the VRM cool? It probably kicked out 100W of heat on its own, unless you have basically jets blowing at the VRM coolers the things would overheat and throttle...

 

edit: also based on these results: https://www.gamersnexus.net/hwreviews/3066-intel-i9-7980xe-7960x-thermals-power-review

It's complete BS and the H105 is similar to a 360mm AIO and they are capable of cooling cpu's with up to a 500W power draw, anything higher would cause the liquid temp to go out of spec (above 60°C) and basically ruin the cooler really quickly.

Run time was likely too short, it won't keep it cool for any actual useful period of time under load.

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5 hours ago, TrigrH said:

According to der8auer:

1000w @ 1.45v

 

He used 1.55v for 6.1ghz btw.

Well, ln2 allows for colder temperatures, which do significantly help power draw. A cooler chip uses less power due to lower internal resistance. That explains the discrepancy imo

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Well Chinebench takes like what, 4 seconds to complete with that setup, so the cpu & vrm doesn't have the time to get very hot. Continued 100 % load on an AIO no snow balls chance in hell. Might not be doable even on a high end custom loop and monoblock.

 

Anything draws high watts when oc'ed balls to the walls. Hell, I've put 800 W through the pcie cables to my R9 290 @ 1.6 V (VRM Vout).

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24 minutes ago, PCGuy_5960 said:

This came as no surprise TBH, any CPU with that many cores running at 4.9GHz was going to draw a shit ton of power.

worth it. Got over 1000mm of rad space so i'm gravy. 

 

Can't wait till these are only £300 in 7 years time xD 

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3 hours ago, Syntaxvgm said:

yah

I just wanna know if we're gonna have this problem again 

Not to mention how hot the vrms and the rear of the socket will get. It isn't just a question of how much power the vrm can deliver and remain stable, but how hot that much current will make them and the peripheral circuitry and thus how much pushing that much current will affect the longevity of the motherboard.

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17 minutes ago, Tam3n said:

Anything draws high watts when oc'ed balls to the walls. Hell, I've put 800 W through the pcie cables to my R9 290 @ 1.6 V (VRM Vout).

800W through the cables is pretty damn impressive. Best max power I've done is 1156W in which is probably 1000W+ out on my 850 G2. 

 

I've two more GTX 480s on the way to do 3 Way benching. Can't wait for PSU to explode xD 

 

I see that you too have a 1000mm+ rad. Excellent choice. 

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25 minutes ago, DildorTheDecent said:

800W through the cables is pretty damn impressive. Best max power I've done is 1156W in which is probably 1000W+ out on my 850 G2. 

 

I've two more GTX 480s on the way to do 3 Way benching. Can't wait for PSU to explode xD 

 

I see that you too have a 1000mm+ rad. Excellent choice. 

You might need an Iwaki pump and a bathtub full of ice water :P

.

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44 minutes ago, DildorTheDecent said:

800W through the cables is pretty damn impressive. Best max power I've done is 1156W in which is probably 1000W+ out on my 850 G2. 

 

I've two more GTX 480s on the way to do 3 Way benching. Can't wait for PSU to explode xD 

 

I see that you too have a 1000mm+ rad. Excellent choice. 

Yeah I was doing BIOS mods testing with various voltages and load line trim settings etc using Furmark. I monitored the rails with my digital AX860i PSU and voltages from the back of the card with digital multimeter. Max I saw was 70 amps going to 8+6 pin pcie (PSU peak watts from wall 1066 W), so ~500 amps out @ 1.6V from the VRM. The 5 phases on the gpu were crying. Higher and the PSU quick OCP kicks in. Voltage drop compared to VRM Vout vs gpu backside ceramic capacitor was 150 mV :D

 

edit: Oh yeah my loop can handle all the heat you can put out, but high wattage the deltas between components and cold plate get high. So even with the water at room temp, the component temps can get high. I think der8auer mentioned the 7980XE was running at >0 degree temps even with LN2 because of that.

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Actual power consumption of the cpu is more like 600w tho

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4 hours ago, HKZeroFive said:

None of those systems will require a 1000W power supply. Look up power consumption benchmarks.

 

index.php?ct=articles&action=file&id=290

My 1080ti alone consumes 400W....

The one in graph is FE at stock. Once you OC VRAM and core the power will skyrocket. Same with CPU OC, especially on 18-core.

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1 hour ago, HKZeroFive said:

PCPP also overestimates.

 

I never said the other parts don't draw 0W, I said that they don't draw as much power as you imply. Also, why would a high-end build happen to have three SSDs and three HDDs? Seems rather counterintiutive.

 

You were correct to limit yourself to 2 GPUs because 3/4-way SLI/Crossfire is useless in its own right.

PCPP is basically a PSU calculator, and i said they are not perfect. 3 SSDs and 3HDDs, RAID 0 950s or something with some quick SSD storage and RAIDed HDD bulk and backup, overkill? yes, but what im getting at is that there ARE and HAVE BEEN usees for 1KW PSUs for ages.

1 hour ago, HKZeroFive said:

An octacore i7-7820X at 4.3GHz paired with RX Vega 64 draws 410W in FurMark. And yes, I know I'm considerate for including a HEDT CPU since you insisted:

 

90111.png

 

this is about there being uses for 1KW PSUs, not about that you can make a HEDT system that draws 450W

1 hour ago, HKZeroFive said:

When and why did the GTX 480 suddenly come into this equation? The card was released more than seven years ago for crying out loud.

 

When I said that "people now have a valid reason to get a 1000+W power supply", I was referring to (or at least I thought I was reffering to) the state of the recent and current PC market. Two GTX 980Tis don't need a 1000W power supply. Two GTX 1080s don't need a 1000W power supply.

980TIs Total board power is capped at 275W unless you unlimit them, take two of those and you get 550W, and then an overclocked 7900x which is 450W and you get 1000W... i brought up the 480 because i said there has been reasons to have 1KW PSUs for ages.

2 hours ago, HKZeroFive said:

When I said that "people now have a valid reason to get a 1000+W power supply", I was referring to (or at least I thought I was reffering to) the state of the recent and current PC market. Two GTX 980Tis don't need a 1000W power supply. Two GTX 1080s don't need a 1000W power supply.

Yes, but why would you pair a i9-7900X with a R9 295X2 in the first place?

it still performs like the 1080TI, thats why. if you are upgradeing from whatever HEDT platform you were on you can still keep that card.

2 hours ago, HKZeroFive said:

The whole basis of your argument relies on the fact that a few people will need 1000+W power supply because they'll get the most power hungry of components and then do everything in their power to make them consume as much power as possible, be it through overclocking them or running through some stress tests that simulate unrealistic loads. You're manipulating the facts to suit your own agenda.

im claiming people build systems that will draw need 1KW PSUs or bigger, because they are. a pair of 980TIs paired with a 7900x isnt to me an unrealistic system at all. 

2 hours ago, HKZeroFive said:

Anyway, that first statement was a tongue-in-cheek statement. Not sure how we got here.

because you claimed there was no other reason to get a 1KW PSU beyond mining. 

 

oh and this is all compleatly disregarding anyone that does LN2 overclocking, do that and 2KW aint enough anymore.

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3 hours ago, MageTank said:

 

 

Custom loops are custom loops. I certainly expect them to go much further than a measly AIO. That being said, there is no report of these reviewers delidding their 7980XE (aside from GamersNexus) so they are still bottlenecked by transfer from the die to the IHS in that regard. My point is, 600w of heat (from just the CPU itself) cannot be handled by a 360mm rad on a custom loop, let alone an AIO. 63C on an AIO just does not seem physically possible. My delidded 7700k at 5ghz gets hotter than that on a 280mm CLC, and it has liquid metal on the die. 

2

GamersNexus showed that 240mm AIO after deliding resulted in much better temperatures than 360mm AIO before deliding... that said, the liquid temperatures were dangerously high.

That video pretty much shows that anyone who is expecting to get any decent OC out of these chips is required to use a custom loop and delid the heck out of it.

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5 hours ago, Syntaxvgm said:

oh I don't gvie a shit about cooling it, I'll strap a honda civic radiator to the fucker if I have to, and for PSUs I'd love an excuse to see multi-psu systems again. I just want the motherboard to be able to handle it. 

Extreme cooling is a lot of fun, and I'd love to see a resurgence of it as a necessity if you want to make a top end enthusiast build. 

I guess custom watercooling will be enough for the VRM :p.

 

Also, talking about the PSU, what about the wires?

You can't whack more 8-pins and 4-pins in it than it allows and even tho the cables can get like 70-80°C i'm wondering if these kinds of loads push the cables beyond that or not.

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58 minutes ago, Bananasplit_00 said:

3 SSDs and 3HDDs, RAID 0 950s or something with some quick SSD storage and RAIDed HDD bulk and backup, overkill? yes, but what im getting at is that there ARE and HAVE BEEN usees for 1KW PSUs for ages. 

 

oh and this is all compleatly disregarding anyone that does LN2 overclocking, do that and 2KW aint enough anymore.

Ya I have 10 15k seagate sas drives in raid 0+1. They each draw roughly 10w, so on their own draw a decent amount of power. 

 

My 3KW PSU will finally have something to stretch its legs.

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And eventually the traces and wires start melting...back in the '90's I did a automation job in an airport and one of the techs dropped a screwdriver over a 3-phase 440 volt 60 amp circuit. It acted like a fuse an burned right through - real soon now we are going to get to that point with power draw on some of these boards O.o, most board traces just aren't meant to take the kind of power down them that some of these systems are going to be drawing. We will either need heavier traces or better conductors to handle some of the numbers being thrown around.   

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5 minutes ago, AncientNerd said:

And eventually the traces and wires start melting...back in the '90's I did a automation job in an airport and one of the techs dropped a screwdriver over a 3-phase 440 volt 60 amp circuit. It acted like a fuse an burned right through - real soon now we are going to get to that point with power draw on some of these boards O.o, most board traces just aren't meant to take the kind of power down them that some of these systems are going to be drawing. We will either need heavier traces or better conductors to handle some of the numbers being thrown around.   

The good thing is most of those traces have been so over built with copper over the years for marketing purposes, that now it actually has a meaningful purpose. Someone would need to probe different parts of motherboards to see if they are getting to a point you would need to worry.

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For the people arguing about power supplies and power consumption : if you increase the clocks and voltage on anything but a GT710 you can probably more than double the power consumption and exceed 700W on a single GPU/CPU.

 

On topic:

Although this puts skylake-X in a bad light , we have gone from a 10 core $1799 chip which could reach 4.3 GHz on a good day to an 18 core $2000 chip which reaches greater speeds in a single generation. If this isn't testament to how much Intel was sitting around / Ryzen  exceeded expectations I don't know what is.

Im interested to see what the everyday stable overclock is , 4.5 should be achievable. Although this chip is consuming ~15X the power of a Core i5 at stock!

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I have to admit that it is kind of impressive for Intel to deliver this level of performance across 18-cores...  If I could afford it and electricity costs weren't as high as they are where I'm at, I would seriously consider setting my home temps to about 10 C as I head into winter and just try to heat the house by letting this beast run OC-ed...  Sorry, can't come to the door right now, have to find ways to stress my CPU to heat the house. xD

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I wouldn't overclock this chip. 

It's a fire hazard. the cables from 99% of PSU's out there aren't designed for this kind of load....

 

not to mention most VRM's couldn't handle it. And who knows what PSU internals are even capable. 

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Intel Core i7-3960X @ 4.6 GHz - Asus P9X79WS/IPMI - 12GB DDR3-1600 quad-channel - EVGA GTX 1080ti SC - Fractal Design Define R5 - 500GB Crucial MX200 - NH-D15 - Logitech G710+ - Mionix Naos 7000 - Sennheiser PC350 w/Topping VX-1

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