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Intel Skylake / Kaby Lake

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LTC8K6

Lifer
Mar 10, 2004
28,520
1,573
126
Funny how "sample of 1" warnings are no longer instantly triggered when dealing with good news. Let's hope the HCC silicon does indeed contain sugar, spice and everything nice!
Several of us were instantly suspicious of these benches, actually.
 

Zucker2k

Golden Member
Feb 15, 2006
1,426
762
136
Funny how "sample of 1" warnings are no longer instantly triggered when dealing with good news. Let's hope the HCC silicon does indeed contain sugar, spice and everything nice!
Haha, true, but the opposite would have triggered a similar reaction from you know who. All the same, given all the dire warnings about how much of a low clocker this particular chip is going to be and we get this?
 

Ajay

Diamond Member
Jan 8, 2001
8,889
3,586
136
Haha, true, but the opposite would have triggered a similar reaction from you know who. All the same, given all the dire warnings about how much of a low clocker this particular chip is going to be and we get this?
Yes, hence the positive response, many thought this CPU would have no legs.
 
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DrMrLordX

Lifer
Apr 27, 2000
17,421
6,411
136
I'm still wondering how the mobo VRMs are going to deal with an 18c CPU @ 1.12v or whatever. That's gonna be a huge current draw given how badly early x299 boards handled even the 10c parts. Unless there's another run of boards with better VRMs/better VRM cooling to go with the 12-18c parts.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,573
126
I'm still wondering how the mobo VRMs are going to deal with an 18c CPU @ 1.12v or whatever. That's gonna be a huge current draw given how badly early x299 boards handled even the 10c parts. Unless there's another run of boards with better VRMs/better VRM cooling to go with the 12-18c parts.
Perhaps the VRM problem is overstated?
 
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DrMrLordX

Lifer
Apr 27, 2000
17,421
6,411
136
Maybe. We'll just have to see how the chips perform in the hands of regular users once they get them. Careful choosing your boards, lads! Don't burn em out.
 
Mar 10, 2006
11,715
2,010
126
Perhaps the VRM problem is overstated?
No, the VRM problem is real. It's not the quality of the VRMs, though -- the X299 boards do have excellent VRMs, generally speaking. The problem is that the motherboard makers are trying to cool the VRMs with really bad coolers that sacrificed cooling performance for "bling."

It's unfortunate, but I have seen evidence of VRM throttling at very high clock speeds running Prime95 small FFT (basically I get "phantom throttling" -- clock speed looks normal, but perf and power consumption go way down).

The only boards suitable for overclocking I would say are the Rampage VI Apex, and the Gigabyte AORUS Gaming 7 and Gaming 9 as all three of these boards have good VRM cooling (Apex is best, AORUS boards second).
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,573
126
Zero chance. They are all 14nm+.
How do we know this, though?

If we buy an 8700K, for example. How do we know it's 14nm++?
Is there any way to know other than Intel telling us?

I read somewhere that Haswell was really 22nm+, but Intel just never called it that?
 

nvgpu

Senior member
Sep 12, 2014
629
201
81
Would be interesting to see Cascade Lake performance on 14nm++.

Since X299 chipset motherboards will also support Cascade Lake with UEFI BIOS update, Kaby Lake-X users can have a forward upgrade path to higher core count CPUs.
 
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Mar 10, 2006
11,715
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Would be interesting to see Cascade Lake performance on 14nm++.

Since X299 chipset motherboards will also support Cascade Lake with UEFI BIOS update, Kaby Lake-X users can have a forward upgrade path to higher core count CPUs.
Cascade Lake should be a pretty awesome family. 14nm++ should be epic.
 
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Timmah!

Senior member
Jul 24, 2010
761
65
91
No, the VRM problem is real. It's not the quality of the VRMs, though -- the X299 boards do have excellent VRMs, generally speaking. The problem is that the motherboard makers are trying to cool the VRMs with really bad coolers that sacrificed cooling performance for "bling."

It's unfortunate, but I have seen evidence of VRM throttling at very high clock speeds running Prime95 small FFT (basically I get "phantom throttling" -- clock speed looks normal, but perf and power consumption go way down).

The only boards suitable for overclocking I would say are the Rampage VI Apex, and the Gigabyte AORUS Gaming 7 and Gaming 9 as all three of these boards have good VRM cooling (Apex is best, AORUS boards second).
When you have to say the issues concern running Prime95 at very high clockspeed (i read that as high overclocks 4,6GHz+), then TBF they are somewhat overstated.

However i agree about the insufficiency of VRM cooling, i used to have Gigabyte X58A UD7:


and thats how the VRM cooling should look like :) Still dont understand why exactly are newer mobos in this regard worse than the old ones, did the people at Asus etc..., the ones who had knowledge that those fins on heatsinks are there to increase transfer of heat away to air, retire or something, and current generation of designers were not told that?
 
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Ajay

Diamond Member
Jan 8, 2001
8,889
3,586
136
When you have to say the issues concern running Prime95 at very high clockspeed (i read that as high overclocks 4,6GHz+), then TBF they are somewhat overstated.

However i agree about the insufficiency of VRM cooling, i used to have Gigabyte X58A UD7:


and thats how the VRM cooling should look like :) Still dont understand why exactly are newer mobos in this regard worse than the old ones, did the people at Asus etc..., the ones who had knowledge that those fins on heatsinks are there to increase transfer of heat away to air, retire or something, and current generation of designers were not told that?
'Gaming' motherboards must look cool. Chalk up a win for the marketing department over engineering. AMD set a 180W TDP limit from the get go and scared the marketing folks enough that they left it to their engineering teams.
 
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maddie

Diamond Member
Jul 18, 2010
3,491
2,484
136
When you have to say the issues concern running Prime95 at very high clockspeed (i read that as high overclocks 4,6GHz+), then TBF they are somewhat overstated.

However i agree about the insufficiency of VRM cooling, i used to have Gigabyte X58A UD7:


and thats how the VRM cooling should look like :) Still dont understand why exactly are newer mobos in this regard worse than the old ones, did the people at Asus etc..., the ones who had knowledge that those fins on heatsinks are there to increase transfer of heat away to air, retire or something, and current generation of designers were not told that?
Everybody accepts it as is. It really isn't some arcane knowledge as I'm sure you know. Basic thermal flows.
 

AdamK47

Lifer
Oct 9, 1999
13,581
958
126
I think it's funny they're using RealTemp GT 3.70. Released January of 2012. Isn't there anything modern they could have used?
 

TahoeDust

Senior member
Nov 29, 2011
557
404
136
I think it's funny they're using RealTemp GT 3.70. Released January of 2012. Isn't there anything modern they could have used?
There are some more detailed screenshots in the link....but yeah. Kinda odd.

Are you still not planning on getting one?
 

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