Intel Skylake / Kaby Lake

[Edrick]

AVX512 is E5/E7/KNL only as far as I know.

That is my understanding as well. Based on the bottleneck of the dual channel memory controller. (See my other post)

 

[phillyman36]

Some Microcenters have the i5 6600k in stock but not all of them. CA has 10+ while Jersey and Philly have none.

 

[Nothingness]

Not at hand, I can try look for it if its important for you.

Its over a year ago since the news was settled on it. E3 also comes from the same die as mobiles and desktops.

Na, don't waste time on it. There is a partial answer here:
https://software.intel.com/en-us/blogs/2013/avx-512-instructions

Intel AVX-512 will be first implemented in the future Intel® Xeon Phi™ processor and coprocessor known by the code name Knights Landing, and will also be supported by some future Xeon processors scheduled to be introduced after Knights Landing.

The "some" here is an indication

 

[Sweepr]

This also indicates regular Skylake Xeon E3 v5 is coming soon, just a few months after Xeon E3 v4.
Any info on the iGPU configuration of the first mobile versions? We have leaked slides talking about GT4e but it looks a bit soon for Iris Pro Skylake.

 

[Deders]

So back to stock Bclk. But the video you linked had him at 189MHz and 25 multiplier. That is an underclock of the Bclk so I don't know what he meant. So far no examples of a 200+ Bclk.

If anything his results stem from fast memory.

I've been itching for this upgrade for a year. Ultimately this upgrade depends entirely on springing for insanely expensive 3600MHz DDR4. Maybe $350 RAM.

I think the standard Bclk is 100MHz for Intel, so 200 is double.

Also bear in mind there are 2 CPU's so the first one he's talking about in the video is the i5.

 

[steve wilson]

I'm confused about cache being a separate speed? Is this similar to Uncore on Haswell? My head hurts with all the OC parameters except the obvious CPU/Mem speeds. Is this new, or is there a glossary somewhere?

I'm also confused about this.

 

[Deders]

I'm confused about cache being a separate speed? Is this similar to Uncore on Haswell? My head hurts with all the OC parameters except the obvious CPU/Mem speeds. Is this new, or is there a glossary somewhere?

I'm also confused about this.

This is oldskool style overclocking. Afaik Sandy Bridge was the first generation to move voltage regulation on to the CPU. Before this there were a lot more options although cache speed would have been rare.

Basically if you aren't reaching the highest overclock you should be able to notch the cache down whilst turning the multiplier up to see if you can get better results. There may be some performance loss due to asynchronicity depending on the relationship between the two, it's something that needs testing.

 

[Dislikeyou]

On my Z170 HERO, Intel VT-d is enabled, how come? I know that it was only possible to use VT-d on non K CPU:s.

 

[TeknoBug]

On my Z170 HERO, Intel VT-d is enabled, how come? I know that it was only possible to use VT-d on non K CPU:s.

Because according to Intel's Ark data site both the i5 6600K and i7 6700K supports VT-d.

 

[ShintaiDK]

4690K and 4790K also supports VT-D for that matter. Nothing new.

 

[Sweepr]

Gigabyte LGA1151 Z170 Chipset Motherboard Lineup

www.tomshardware.de/gamescom-gigabyte-skylake-z170-mainboards,news-253458.html#xtor=RSS-121

Some new results (using DDR4-2666) from Clubic.

Hitman Absolution 1080P

DiRT Showdown 1080P

There's applications and games where Skylake's manages to distance itself from Haswell. In some MT apps it's enough to match stock Haswell-E. Core i7 6700K vs Core i7 5820K really does generate an interesting discussion.

3DSMax

Photoshop

Handbrake

 

[Absolute0]

@ sweepr what is the link for that?

EDIT: SKL performance here is monstrous

Thanks for link. It looks like better DDR4 really reshaping the gaming benchmarks...

 

[ShintaiDK]

Rememeber some graphs, less=better.

 

[Ajay]

I hope when people start getting their SKL's in someone will start a new thread on overclocking performance - this thread is enormous!

 

[Deders]

I hope when people start getting their SKL's in someone will start a new thread on overclocking performance - this thread is enormous!

+1

 

[JM Popaleetus]

I realize it is somewhat off topic, but I'm asking here as it has become the focus of this thread. Does Haswell-E scale with memory speeds as dramatically as Skylake does?

I'm returning the kit in my sig due to errors, and because of Skylake's release, DDR4 prices have fallen again. So I'm pondering going with DDR4-2800 or 3000.

I hate to beg, but anyone?

And yes, I have read Anand's article. But I just want a second opinion considering some might argue they butchered the Skylake tests.

 

[Arachnotronic]

I hate to beg, but anyone?

And yes, I have read Anand's article. But I just want a second opinion considering some might argue they butchered the Skylake tests.

I don't think you should spend too much of a premium on high-frequency DDR4. The chips already have access to gobs of memory bandwidth thanks to the quad channel setup.

In my own X99 setup, I have eight sticks of DDR4-2400 but the memory controller doesn't play nice with all that memory when I set the it to DDR4-2400 speeds. I have to dial it down to 2133 for the system to recognize all of my memory.

 

[Fjodor2001]

Rememeber some graphs, less=better.

Sure, as indicated in each graph.

Anyway, just curious, will you be getting Skylake yourself and if so why? You've already got a Haswell desktop CPU if I remember correctly, so the gain will barely be noticeable? If it's because of hobby/enthusiast reasons I can respect that...

 

[ShintaiDK]

Sure, as indicated in each graph.

Anyway, just curious, will you be getting Skylake yourself and if so why? You've already got a Haswell desktop CPU if I remember correctly, so the gain will barely be noticeable? If it's because of hobby/enthusiast reasons I can respect that...

Its a chain upgrade and yes. 3570K will be going out. Also getting a Skylake NUC as HTPC.

 

[cmdrdredd]

The more I look at it the more I see myself going with a skylake system this year. Haswell-E looks great on paper but when I dig more I find that overclocking will probably be more difficult on it due to out of control temperatures unless I go to water which I am not planning to do. I also don't do anything that would take advantage of a 6c/12t CPU. The other thing is the motherboards are oin average $100 more expensive for similar features. My 3570k system isn't slow or showing signs of age etc, but I want to move away from my mATX board and use a PCIe SSD. The better chipset, faster CPU, and new sound chip are all just bonuses to me.

 

[nvgpu]

http://www.fanlesstech.com/2015/08/exclusive-skylake-u-lineup.html

 

[Sweepr]

Nice find nvgpu!
Those are some high clocks for 15W U parts. I'd like to know more about the 15W GT3e SKU, I wonder if the 28W parts are getting eDRAM too.

 

[Arachnotronic]

Nice find nvgpu!
Those are some high clocks for 15W U parts. I'd like to know more about the 15W GT3e SKU, I wonder if the 28W parts are getting eDRAM too.

The GT3 SKUs of the U series should be numbered 6x50; all of the models listed here are 6x00. The initial batch of Skylake-Us may not have GT3e and might be limited to GT2.

 

[dahorns]

Looks like 100mhz increases in base and single-core turbos compared to Broadwell. The dual core turbo sees a bigger boost of 200mhz on the i5s. iGPU also sees a boost of 100mhz.

 

[Abwx]

Those are some high clocks for 15W U parts.

From 2C/2T/1.6 to 2C/4T/2.6 there s a ratio of 3 TDP wise.

Now you can always state that the higher clocked part is at 15W, and that the rest is well below this rating, 100% sure that you ll find some believers...