Intel Skylake / Kaby Lake

[frozentundra123456]

You know, if Intel wanted to improve IPC they could do so 10-fold. But you'd pay for it with 1/10th the clock frequency. The trick is 15% IPC while maintaining clock speed.

The model lineup has been released, and they have pretty much maintained the clockspeed. Whether the 15% IPC improvement holds up is another matter.

 

[ShintaiDK]

Any news of the DDR3/DDR4 support on Skylake?

As I understand it, regular desktop DDR3 will not physically fit in DDR4 slots.

Will there be two versions of some Z170 motherboards, some with DDR3 slots and other versions with DDR4 slots?

Or will some Z170 motherboards feature the 'uniDIMM' slots - which as I understand it, as the laptop style 'SO-DIMM' slots - which can physically fit DDR3 and DDR4 SO-DIMM's?

I'll be moving to regular DDR4 dimms when Skylake launches, though I'm curious as to how the desktop Z170 motherboards will get around this problem.

The only boards we have seen yet is the iColorful Z170 series. Those use regular DDR4 modules. But the mobo makers are essentially free to do what they want.

 

[Arachnotronic]

http://diy.pconline.com.cn/637/6375701.html

 

[ShintaiDK]

Nice find :thumbsup:

And Broadwell-E for Q1.

 

[mikk]

It confirms the other SKU leaks. I think we are looking for a Computex launch for Broadwell-K and IDF August launch for Skylake-S. Availability could differ from the launch of course.

 

[Sweepr]

Nice find Arachnotronic.
So Haswell-E will get a speed bump (+100MHz?) by the time Skylake-S arrives.
Core i7 5775C and Core i5 5675C will be replaced by faster Broadwell LGA chips as soon as Q4-2015.
Core i7 6700K and Core i5 6600K will also be replaced in Q1-2016.

Lots of new chips ahead.

 

[jpiniero]

Core i7 5775C and Core i5 5675C will be replaced by faster Broadwell LGA chips as soon as Q4-2015.

I think that's Skylake-C. I don't know why they wouldn't mark it as such.

And Broadwell-C supports cTDP down to 37 W if anyone were interested in that. I think that's a first for a LGA product like this. (Yeah, I know you could just underclock it...)

 

[adhdrunsme]

The SKU Leek

 

[Idontcare]

The SKU Leek

Leek is delicious when in dumplings, not sure what leek has to do with SKU's or Skylake though

 

[B-Riz]

http://diy.pconline.com.cn/637/6375701.html

i7-5775C vs i7-4790K

L3 drop from 8 to 6? I dunno, Intel CPU's love cache.

Not sure if the 5775C will be *vastly* better than 4790K...

Edit: I think I will hold my DDR4 new Win 10 PC money for Broadwell-E and some SLI / CFX goodness...

 

[Justinbaileyman]

So will Broadwell-E CPU's be compatible on the Skylake-K Socket? It would be nice If I could just do a drop in upgrade.If so does that mean there will be 8 core CPU's on the new Skylake-K Socket?Also what are they going to be calling this next socket 1151 so I can stop calling it the Skylake socket LOL?

 

[ShintaiDK]

All iris Pro chips seems to have 6MB only. I guess 2MB is reserved in relation to the eDRAM.

 

[ShintaiDK]

So will Broadwell-E CPU's be compatible on the Skylake-K Socket? It would be nice If I could just do a drop in upgrade.If so does that mean there will be 8 core CPU's on the new Skylake-K Socket?Also what are they going to be calling this next socket 1151 so I can stop calling it the Skylake socket LOL?

Absolutely not. It will however be compatible with the Haswell-E socket.

You may be able to put a Cannonlake C or K model in the Skylake-K socket. But else the next step is Icelake-K and a new LGA11xx socket.

 

[Arachnotronic]

So will Broadwell-E CPU's be compatible on the Skylake-K Socket? It would be nice If I could just do a drop in upgrade.If so does that mean there will be 8 core CPU's on the new Skylake-K Socket?Also what are they going to be calling this next socket 1151 so I can stop calling it the Skylake socket LOL?

Nope. BDW-W will be compatible with the current X99 boards.

 

[Justinbaileyman]

Booo!! So your saying if I want a 8 core chip I have to go x99 no matter what? Well then I guess my next question is would it be better to go X99 the 1151? I would get a x5960 now but that TDP worries me greatly concerning my electric bill.Also Skylake-K will have all new instruction sets,Increased PCI lanes and a IPC increase vs x99 and I really dont want to miss out on that. Kinda like when I bought x58 back in the day and shortly after 1155 cpu's came out and kicked the crap out of my poor 920. I just dont want a replay of that this time around.So many options almost to many to choose from.

 

[B-Riz]

Booo!! So your saying if I want a 8 core chip I have to go x99 no matter what? Well then I guess my next question is would it be better to go X99 the 1151? I would get a x5960 now but that TDP worries me greatly concerning my electric bill.Also Skylake-K will have all new instruction sets,Increased PCI lanes and a IPC increase vs x99 and I really dont want to miss out on that. Kinda like when I bought x58 back in the day and shortly after 1155 cpu's came out and kicked the crap out of my poor 920. I just dont want a replay of that this time around.So many options almost to many to choose from.

Pure speculation here, but I think back in the day Intel needed X58 out to compete with AMD.

So they dropped high end first, then reversed course with Sandy Bridge.

 

[MrTeal]

Booo!! So your saying if I want a 8 core chip I have to go x99 no matter what? Well then I guess my next question is would it be better to go X99 the 1151? I would get a x5960 now but that TDP worries me greatly concerning my electric bill.Also Skylake-K will have all new instruction sets,Increased PCI lanes and a IPC increase vs x99 and I really dont want to miss out on that. Kinda like when I bought x58 back in the day and shortly after 1155 cpu's came out and kicked the crap out of my poor 920. I just dont want a replay of that this time around.So many options almost to many to choose from.

You know the chip doesn't consume full power unless you're fully loading it, right? An X99 system with a 8-core chip might consume 10W more than a Z97 system at idle, but it's not going to make a huge difference.

Sure you'll use more power if you're encoding and using 16 threads on the X99 system, but you'll also be done sooner.

 

[kimmel]

All iris Pro chips seems to have 6MB only. I guess 2MB is reserved in relation to the eDRAM.

I think the math works out for it to be most likely tags for the eDRAM.

 

[CakeMonster]

Booo!! So your saying if I want a 8 core chip I have to go x99 no matter what? Well then I guess my next question is would it be better to go X99 the 1151?.

Rule of thumb: If you have to ask, you don't need the extra cores. Get the new tech in Skylake 1151 instead.

 

[Sweepr]

Here's to hoping...although, I won't be holding my breath. If Zen turns out to be half of what it has been built up to be by a few people around here, though, I'll be buying one myself.

If this slide is true then it's nowhere near Skylake IPC:

And I don't expect them to hit >4GHz base clocks as soon as next year either (at least not for the rumoured 8-core chip).

 

[Justinbaileyman]

Yeah but Zen is so far away from launch who can wait that long for an upgrade? I would love to get a 16c/32t Zen myself when they hit the streets but who know what intel will have by then.I am already starting to feel like its going to be to little to late.

 

[BigDaveX]

Pure speculation here, but I think back in the day Intel needed X58 out to compete with AMD.

So they dropped high end first, then reversed course with Sandy Bridge.

Not exactly; Intel did need Nehalem to compete with AMD, but in the server area. In desktops they were already well ahead of the original Phenom, and even if they'd stuck with Core 2 Quad for another year it'd have still been very competitive with Phenom II.

Releasing Nehalem on the desktop when they did was mostly just because it had been a year since they had released Penryn, and they needed something to refresh their product line-up (wanting to push adoption of DDR3 may also have had something to do with it).

 

[mikk]

Here is a i5-6600K Geekbench score: http://browser.primatelabs.com/geekbench3/2491359


My i5-4670 running 3.7 Ghz @DDR3-2133: http://browser.primatelabs.com/geekbench3/9539

 

[Sweepr]

Here is a i5-6600K Geekbench score: http://browser.primatelabs.com/geekbench3/2491359


My i5-4670 running 3.7 Ghz @DDR3-2133: http://browser.primatelabs.com/geekbench3/9539

Thanks for sharing mikk. That's consistent with my expectations, around 15% faster than Haswell per clock.

 

[Arachnotronic]

Here is a i5-6600K Geekbench score: http://browser.primatelabs.com/geekbench3/2491359


My i5-4670 running 3.7 Ghz @DDR3-2133: http://browser.primatelabs.com/geekbench3/9539

6600K is said to run at 3.5GHz base/3.9GHz turbo.

Perf/clock improvement = 12.9%*(3.7/3.9) = ~12.24%.

Definitely solid for a "tock."