Skylake-X (Core i9) - Lineup, Specifications and Reviews!

Well if you need bigger cooler also means much more heat for the room it is in. I thought Bulldozer was over the edge, SkylakeX takes that to a new high. Just put an air conditioner in your room and be done with that part. So if you really want to OC the 7900k you will need at least a custom loop, delid and put good thermally conductive TIM and a room air conditioner. You just added a bunch of costs in addition to the higher costs over a RyZen system. ThreadRipper should also consume a lot of power and probably more so when OC. So for these high core count processors heat will probably be an issue for everyone especially over 10 cores and pushing the clock speeds.

The 7820K does not look that bad, price wise though compared to a 1700 or even a 1700x does start to falter but some if not many are getting sick of Ryzen stability or issues. If the X299 platform is very stable then I see many just not looking back once they spent the money, at this level stability is just as important as performance if not more so. Performance you can't use due to stability does not get you too far.
 
lolfail9001 said:
And with how powerful of a pump, exactly? The reason custom water beats AIOs has less to do with size of radiator in general, but more with pump used.

Enthusiast products are... for enthusiasts?
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Flowrate by itself doesn't have that big of an impact. Actually I don't think one could really say it's any one thing that makes custom water perform that much better. It's more a combination of:

- aluminum vs copper rads
- better block design with custom water
- (much) better fans used with custom water
- higher flowrate

Also I'd wager even among enthusiasts, those who go custom water are a very small minority.
 
noko said:
Well if you need bigger cooler also means much more heat for the room it is in. I thought Bulldozer was over the edge, SkylakeX takes that to a new high. Just put an air conditioner in your room and be done with that part. So if you really want to OC the 7900k you will need at least a custom loop, delid and put good thermally conductive TIM and a room air conditioner. You just added a bunch of costs in addition to the higher costs over a RyZen system. ThreadRipper should also consume a lot of power and probably more so when OC. So for these high core count processors heat will probably be an issue for everyone especially over 10 cores and pushing the clock speeds.

The 7820K does not look that bad, price wise though compared to a 1700 or even a 1700x does start to falter but some if not many are getting sick of Ryzen stability or issues. If the X299 platform is very stable then I see many just not looking back once they spent the money, at this level stability is just as important as performance if not more so. Performance you can't use due to stability does not get you too far.
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If you bench with AVX512 units running full speed it will require a lot of power. But its also around 4x the speed of SB/IB/Zen per core then. There is a reason why a CPU only SKL-SP HPC ended up at rank 13 with just 6176 CPUs. Even a stock 24C SKL-SP Xeon beats 64 EPYC cores on the top bin.
 
Anyone see any reviews showing the overclock of the 7800x vs the 7820x? Everything I've seen so far seems to be the nuclear reactor 7900x.

I'm deciding between the 7800x and 7820x for gaming. If the 7800x 6 core overclocks higher than the 7820x 8 core then I'd consider that.

Thanks
 
Nirad9er said:
Anyone see any reviews showing the overclock of the 7800x vs the 7820x? Everything I've seen so far seems to be the nuclear reactor 7900x.

I'm deciding between the 7800x and 7820x for gaming. If the 7800x 6 core overclocks higher than the 7820x 8 core then I'd consider that.

Thanks
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I would go for the 8 core, very few sites covered it but it did well and did not go nuclear like the 7900x when overclocked. If you want a 6 core I would wait for Coffee lake.
 
7820x shipped from B&H. My Gigabyte Aorus G7 from Amazon....not so much. The apparently have not received them yet and are hoping they get them tomorrow. :(
 
realworld said:
Amazon is slow. No news for my CPU and motherboard.
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I'm a little surprised. Amazon is usually good about pre-orders stuff. Most the times delivered on release day. It seems like the Gigabyte Aorus G7 is pretty hard to come by.
 
TahoeDust said:
I'm a little surprised. Amazon is usually good about pre-orders stuff. Most the times delivered on release day. It seems like the Gigabyte Aorus G7 is pretty hard to come by.
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Amazon pulled the same stunt on Ryzen motherboards as well. They sold stock they did not have and had no ETA on getting, was pretty shady on their part.
 
Gideon said:
Amazon pulled the same stunt on Ryzen motherboards as well. They sold stock they did not have and had no ETA on getting, was pretty shady on their part.
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That is a bummer to hear. How far behind newegg were they on delivering? My CPU will be here Wednesday.
 
TahoeDust said:
That is a bummer to hear. How far behind newegg were they on delivering? My CPU will be here Wednesday.
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I had to give up on Amazon and I ordered through Newegg. I got my board in a week after ordering from the Egg. I would ask Amazon what their ETA is, they were at least honest with me on that. But I wont order stuff from Amazon at launch again because of what they did. Amazon was at least a month out before they were said they could honor my order.
 
I wonder if I should dump the 6700K and build a mITX 2066 socket with a 7800K or 7820K? Mostly for the challenge designing a small footprint configuration with high heat and with good OCing.
 
noko said:
I wonder if I should dump the 6700K and build a mITX 2066 socket with a 7800K or 7820K? Mostly for the challenge designing a small footprint configuration with high heat and with good OCing.
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You only have one option for ITX at the moment. So unless you must have 8 cores, quad channel or AVX512 I would get CFL-S. And when AVX512 offsets is implemented in BIOSes power consumption will plummet. Or disable MCE for stock operation.
 
Shintai said:
You only have one option for ITX at the moment. So unless you must have 8 cores, quad channel or AVX512 I would get CFL-S. And when AVX512 offsets is implemented in BIOSes power consumption will plummet. Or disable MCE for stock operation.
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For the consumer, Coffee Lake does look to be right on target, I am in no hurry one way or the other.
 
noko said:
For the consumer, Coffee Lake does look to be right on target, I am in no hurry one way or the other.
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Yes, but what's the upgrade path on z370? I upgraded to x299 since I should have the option of CPU upgrades for several years similar to x99 2011 (3960x -> 4690x) or 2011-v3 (5960x -> 6950x). I believe 2011-v3 was with ddr4 so a new Mobo otherwise I think the upgrade path would have been longer. I'm hoping LGA 2066 has a good 4-5 years!
 
Nirad9er said:
Yes, but what's the upgrade path on z370? I upgraded to x299 since I should have the option of CPU upgrades for several years similar to x99 2011 (3960x -> 4690x) or 2011-v3 (5960x -> 6950x). I believe 2011-v3 was with ddr4 so a new Mobo otherwise I think the upgrade path would have been longer. I'm hoping LGA 2066 has a good 4-5 years!
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The HEDT and consumer socket have around the same lifespan.
 
Nirad9er said:
Yes, but what's the upgrade path on z370? I upgraded to x299 since I should have the option of CPU upgrades for several years similar to x99 2011 (3960x -> 4690x) or 2011-v3 (5960x -> 6950x). I believe 2011-v3 was with ddr4 so a new Mobo otherwise I think the upgrade path would have been longer. I'm hoping LGA 2066 has a good 4-5 years!
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With Intel I usually consider them throw away boards after use or give them away. Upgrade with Intel on the same platform from one generation to the next is almost pointless or very little gain. Not sure what Intel will do with Z370, it would be almost laughable to continue to have I3's but for businesses - many of them that is enough. Still AMD four cores will probably start eating into the business computers once the APU's hit (4core, 8 threads). For a gaming PC, 6 very fast cores, 12 threads, fast ram should push things well from that standpoint for years to come.
 
I'm betting my triple radiator (480, 420, 280) and dual in series pumps will handle my 7820x and SLI 1080 TIs just fine. 5.0ghz hear I come haha
 
Kato1144 said:
imagine the overclocks ppl are going to get when they start deliding
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It really does not bode well for HCC die SKLX if they use TIM though, because apparently leakage is pretty nuts on those.

And those cannot be delidded, die is too big.
 
Kato1144 said:
Hardware Unboxed gets it's 7900X at 4.7GHz @ 72-73oC full load all cores, it's pretty impressive



imagine the overclocks ppl are going to get when they start deliding
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Go figure custom water cooling did the job, most people wont even be able to keep 4.6 stable without it and very few people bother with custom water cooling. Even so 4.5 is pretty darn fast for 10 cores and without benchmarks most people would not even notice the difference from 4.5 to 4.7 or 4.8.
 
lolfail9001 said:
It really does not bode well for HCC die SKLX if they use TIM though, because apparently leakage is pretty nuts on those.

And those cannot be delidded, die is too big.
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Well a 7900X has already been delidded, it is certanly not easy or very safe but it is possible with enough force




Gideon said:
Go figure custom water cooling did the job, most people wont even be able to keep 4.6 stable without it and very few people bother with custom water cooling. Even so 4.5 is pretty darn fast for 10 cores and without benchmarks most people would not even notice the difference from 4.5 to 4.7 or 4.8.
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Ya your right, but still people are going to go for those super fast clocks with diminishing returns even if it is unpractical, hell if i had some kinda of chilled loop/massive custom water loop for my R7 1700 I would be trying to rock it at 4.1-4.2GHz 24/7 and you know how hot them chips get a 4GHz +

Truth be told i have a Coolermaster V12 i was using on my 2600K, that has active cooling and can handle up to 200watts+ TDP if my memory server me right, I wish i could get that mounted for AM4, i would be more willing to push my over clock to 3.9GHz + if i could...
 
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Kato1144 said:
Well a 7900X has already been delidded, it is certanly not easy or very safe but it is possible with enough force
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7900X is the small (well, relatively) die, i talk about the 12C+ die, that one apparently cannot be delidded without damaging the chip.

Even though it uses TIM as well.
 
lolfail9001 said:
7900X is the small (well, relatively) die, i talk about the 12C+ die, that one apparently cannot be delidded without damaging the chip.

Even though it uses TIM as well.
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Ok I thought you were referencing the chips that are out now, the 12-18 core die's are going to be a different story for sure, ya there may be no way to safely delid those chips , and I kinda do get why intel is using TIM as the common user will not mind to much as the common user will most likely not be overclocking there CPU, for the enthusiast intel should sell SLX chips naked with the IHS loose, so if you want to do mad overclocks you can buy the naked version and use liquid metal on the IHS for much better thermals and the guy building a work station for a business can just get the regular chip and not have to worry about a loose IHS and such as that system will run stock it whole life, that would be the way i would do it, keeps every one happy, well mostly
 
Yawn , power consumption.
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I have a question.
Is there an expected time for 7920x and above ?
...I've seen September , but any idea when we will have info on the higher core count stuff ?
I want 12 cores at 4.5 Ghz....dun give a fuck about power dissipation.
 


looks like if any of you are planning to OC on this better wait till fixed motherboards are released or plan on watercooling the VRMs, most importantly he points out any x299 board with a single 8 pin power socket is actually dangerous to power supplies and cables due to the excessive current draw at 300w
 
BrainEater said:
Yawn , power consumption.
-----
I have a question.
Is there an expected time for 7920x and above ?
...I've seen September , but any idea when we will have info on the higher core count stuff ?
I want 12 cores at 4.5 Ghz....dun give a fuck about power dissipation.
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Wont happen, The power draw will be far to much and likely cause a power shut down of the motherboard. Might be able to do a suicide bench run and thats about it.
 
How did they mess it up so badly? Obviously a rush job.
CFL's timetable was moved up a few months as well, hopefully the reused chipset will make things easier...
 
Frito11 said:


looks like if any of you are planning to OC on this better wait till fixed motherboards are released or plan on watercooling the VRMs, most importantly he points out any x299 board with a single 8 pin power socket is actually dangerous to power supplies and cables due to the excessive current draw at 300w
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tl;dr for the lazy bums:

- mobo VRM heatsink hits 84C+ under Prime95 non-AVX load; VRM likely cooking at 120-130C
- AVOID any mobo with only a single 8-pin CPU due to excessive power draw of Skylake-X chips when pushed
- not limited to one manufacturer; Asus has already changed their VRM heatsink design for the X299 Apex and R6E
- derbauer does NOT recommend getting ANY X299 mobo at this point unless you watercool the VRMs; says to wait 1-2 months for companies to get their shit together

And the kicker:

- taking off the heatsink and pointing a 120mm fan at VRMs dropped temps by 40C :rolleyes::rolleyes::rolleyes:

Edit: Made a PSA about it in the mobo section since this is pretty serious stuff
 
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This guy talks about VRM temperature during prime95 loads. I can't think of any real world condition where your CPU would be loaded that much to allow the VRMs to get that hot.
 
I bought the MSI gaming pro carbon which had lower VRM temps so maybe I'm ok but I might look into a VRM water block then.

Anyone know of the VRM blocks are universal or if the ones from x99 would work?
 
Nirad9er said:
I bought the MSI gaming pro carbon which had lower VRM temps so maybe I'm ok but I might look into a VRM water block then.

Anyone know of the VRM blocks are universal or if the ones from x99 would work?
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the mounting holes are not universal, there are universal type blocks out there though where basically you measure the width to cover, find a block that matches that width close enough to work and then it has two copper tabs sticking out you have to drill out to match the mounting holes in the mobo like this one http://www.aquatuning.us/water-cool...3/watercool-heatkiller-sw-x-60-diy-lt?c=13328
 
There are so many people that are buying the x299 motherboards. Is this really a huge issue with the VRM temps or is this guy making a bigger deal than he should over some prime95 unrealistic loads?

Should I return my MSI gaming pro carbon and wait for boards with improved cooling or look into a VRM water block? What are people going to do that don't have the option to water cool like me?
 
If it was any other person I'd probably dismiss it, but it's derbauer, and if there's anyone who knows his shit, it's this guy.
 
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Nirad9er said:
There are so many people that are buying the x299 motherboards. Is this really a huge issue with the VRM temps or is this guy making a bigger deal than he should over some prime95 unrealistic loads?

Should I return my MSI gaming pro carbon and wait for boards with improved cooling or look into a VRM water block? What are people going to do that don't have the option to water cool like me?
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Well if it throttles you're stuck at 1.2GHz. I wouldn't be very happy myself with 1.2GHz if I overclock. Encoding and trans-coding 4K video should make all cores max out, which I would assume is close to the tests he ran?

I'd wait personally unless running stock speeds.
 
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