Intel Skylake / Kaby Lake

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Nothingness

Platinum Member
Jul 3, 2013
2,751
1,397
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Does anyone have an idea of how Nvidia's P100 compares against Xeon Phi?
If you only look at peak figures P100 will crush Knights Landing:

  • P100 is 10.6 TF/s SP and 5.4 TF/s DP while KNL is 6 TF/s SP and 3 TF/s DP.
  • P100 has a bandwidth of 720GB/s vs KNL 400 GB/s
How this will translate in real life applications is not yet known to mere mortals


Refs:
http://www.anandtech.com/show/10222/nvidia-announces-tesla-p100-accelerator-pascal-power-for-hpc
https://software.intel.com/en-us/articles/what-disclosures-has-intel-made-about-knights-landing
 

SAAA

Senior member
May 14, 2014
541
126
116
Raw numbers are better indeed, but it was the same for previous GPUs against Phi and they were still used in many supercomputers.
The Xeon surely is better at handling more complex code like a CPU would, so the peak number is just a fluke for both: I'm guessing you have to test each implementation to see how they really fare.

Some news on kabylake:
http://ranker.sisoftware.net/show_r...e7d6e6d5e3d6e0c6b489b99ffa9fa292b4c7faca&l=en

It looks like GT2 graphics with eDRAM? It should help the cpu too at that TDP (it's a -U chip), just like Broadwell with L4 at lower clocks fares better than Skylake in some task.
 

Nothingness

Platinum Member
Jul 3, 2013
2,751
1,397
136
Raw numbers are better indeed, but it was the same for previous GPUs against Phi and they were still used in many supercomputers.
The gap is widening a lot it seems: current top systems are using K20x which has peaks of 4 TF/S SP, 1.3 TF/S DP, 250 GB/s vs Xeon Phi 31S1P which has peaks of 1 TF/S DP, 320 GB/s.

The Xeon surely is better at handling more complex code like a CPU would, so the peak number is just a fluke for both: I'm guessing you have to test each implementation to see how they really fare.
Agreed
 

Rngwn

Member
Dec 17, 2015
143
24
36
It looks like GT2 graphics with eDRAM? It should help the cpu too at that TDP (it's a -U chip), just like Broadwell with L4 at lower clocks fares better than Skylake in some task.

I wish that is accurate and isn't another messed up hardware string. According to the older news, the GT2 does not have any eDRAMs. Unlikely as it is, I still hoping that Intel should outright shifting the GT-thingy(well GT2->GT1, GT3->GT2, and so on) up a notch.
 

witeken

Diamond Member
Dec 25, 2013
3,899
193
106
If you only look at peak figures P100 will crush Knights Landing:

  • P100 is 10.6 TF/s SP and 5.4 TF/s DP while KNL is 6 TF/s SP and 3 TF/s DP.
  • P100 has a bandwidth of 720GB/s vs KNL 400 GB/s
How this will translate in real life applications is not yet known to mere mortals


Refs:
http://www.anandtech.com/show/10222/nvidia-announces-tesla-p100-accelerator-pascal-power-for-hpc
https://software.intel.com/en-us/articles/what-disclosures-has-intel-made-about-knights-landing

How about pricing?
 

mikk

Diamond Member
May 15, 2012
4,172
2,210
136
If you only look at peak figures P100 will crush Knights Landing:

  • P100 is 10.6 TF/s SP and 5.4 TF/s DP while KNL is 6 TF/s SP and 3 TF/s DP.
  • P100 has a bandwidth of 720GB/s vs KNL 400 GB/s
How this will translate in real life applications is not yet known to mere mortals


Refs:
http://www.anandtech.com/show/10222/nvidia-announces-tesla-p100-accelerator-pascal-power-for-hpc
https://software.intel.com/en-us/articles/what-disclosures-has-intel-made-about-knights-landing


Intel just says over 3 Teraflops DP, exact numbers are not available yet. Performance per watt should look better for Intel. GP100 has a 300W TDP, Knight Landing was specified for a TDP between 160-200W, although not confirmed yet.


Some news on kabylake:
http://ranker.sisoftware.net/show_r...e7d6e6d5e3d6e0c6b489b99ffa9fa292b4c7faca&l=en

It looks like GT2 graphics with eDRAM? It should help the cpu too at that TDP (it's a -U chip), just like Broadwell with L4 at lower clocks fares better than Skylake in some task.


Where do you see edram in this link?
 

witeken

Diamond Member
Dec 25, 2013
3,899
193
106
And besides power and performance you have die size / transistor count.

Given that Knights Landing has 7.1B transistors, that could put it at less than 450mm², significantly less than the 610mm² of Pascal.

I give you 2 data points:

1. This estimate: http://www.fool.com/investing/gener...e-die-size-of-intel-corporations-knights.aspx

2. BDW-Y has 1.3B x'tors in 82mm². You can easily extrapolate to 7.1B x'tors.

EDIT:

Well never mind: http://www.anandtech.com/show/9802/supercomputing-15-intels-knights-landing-xeon-phi-silicon-on-display
 
Last edited:

Nothingness

Platinum Member
Jul 3, 2013
2,751
1,397
136
And Nvidia claims 15B transistors for 610mm2. I have a hard time believing TSMC 16nm could be twice denser than Intel 14nm. I guess they are not counting transistors the same way.
 

coercitiv

Diamond Member
Jan 24, 2014
6,393
12,825
136
And Nvidia claims 15B transistors for 610mm2. I have a hard time believing TSMC 16nm could be twice denser than Intel 14nm. I guess they are not counting transistors the same way.
GM200 is 8B transistors, it's apples and oranges.
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
Core i7-6770HQ (Iris Pro 580) GFXBench Submission (with Results)

Some results are still messed up, but T-Rex Offscreen looks good. Note that there are higher clocked Iris Pro 580 parts, and future 65W TDP 'C' desktop SKUs should be even faster.

Core i5-6350HQ: 350MHz (base), up to 900 MHz
Core i7-6770HQ: 350 MHz (base), up to 950 MHz
Core i7-6870HQ and Xeon E3-1515M v5: 350 MHz (base), up to 1 GHz
Core i7-6970HQ and Xeon E3-1545M v5: 350 MHz (base), up to 1.05 GHz
Xeon E3-1575M v5: 350 MHz (base), up to 1.1 GHz

- T-Rex Offscreen @ Windows OpenGL
Core i7-6770HQ (mobile, 45W TDP): 252.6 FPS
Core i5-5675C (desktop, 65W TDP): 155.4 FPS

~62.5% faster.

https://gfxbench.com/device.jsp?ben...GPU&hwname=Intel(R)+Iris(TM)+Pro+Graphics+580
 

SAAA

Senior member
May 14, 2014
541
126
116
I wish that is accurate and isn't another messed up hardware string. According to the older news, the GT2 does not have any eDRAMs. Unlikely as it is, I still hoping that Intel should outright shifting the GT-thingy(well GT2->GT1, GT3->GT2, and so on) up a notch.

Same wish here, they need to get rid of GT2 on anything but desktop.
If you want better GPU on a desktop just buy a discrete card, but on mobile were it's harder to upgrade I'd rather have all GT3 minimum to save power/space.

Where do you see edram in this link?

It's the only mentioned capacity and I doubt they assigned only 128mb of ram for the iGPU:
http://ranker.sisoftware.net/show_d...f3ceffd9b18cb99fe7daebcda8cdf0c0e695a898&l=en
It may still be a false positive...

Other results, I'm more confident this time, on geekbench:
http://browser.primatelabs.com/geekbench3/search?q=ID5904

Two mobile kabylake chips, ID 59-- for this generation, same as phoronix others IDs:
http://www.phoronix.com/scan.php?page=news_item&px=Intel-Kabylake-IDs-Mesa
 

mikk

Diamond Member
May 15, 2012
4,172
2,210
136
It's the only mentioned capacity and I doubt they assigned only 128mb of ram for the iGPU:
http://ranker.sisoftware.net/show_d...f3ceffd9b18cb99fe7daebcda8cdf0c0e695a898&l=en
It may still be a false positive...


Why do you doubt this? 64 MB or 128 MB is a typical choice for Intel. I think 128MB are dedicated from system RAM and has nothing to do with edram. And ULV GT3e gets 64 MB with Kabylake, no change to Skylake. Another hint that 128 MB can't belong to edram, on a GT2 SKU especially.
 

Cali3350

Member
May 31, 2004
127
11
81
Really disappointed with the complete lack of Vaio Z reviews

We have ~3 reviews for the Flip version (and it looks really good) and none for the Non Flip.
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
HotHardware: ASUS Z170 ROG Maximus VIII Extreme Motherboard Review: An Impressive Platform For Skylake







Performance Summary: The Asus Z170 ROG Maximus VIII Extreme motherboard is an absolute beast. It may not have broken any official performance records. However, overclocking-wise, hitting 4.8GHz on a Z170-based board is a first for us using such a simple ratio-based method. It also remained rock solid even in games and our PCMark8 synthetic benchmarks when overclocked to that speed.

This ASUS motherboard is decked out from top to bottom with more features than we can list. However, the notable head-turners include the handy OC Panel II external tuning and system monitoring hardware utility, the Extreme Engine Digi+ core voltage power controller and the SupremeFX 2015 audio processing engine. Many of these are premium, sought-after features not found on many motherboards currently. On the storage front, not only do you get eight SATA ports, but the board also features M.2 and U.2 storage support, which should take care of your high speed NVMe storage needs. And we can't forget Bluetooth and Wi-Fi support via the included adapter and a bevy of software utilities...

...But honestly, neither of these boards are for the budget builder who's merely looking to slap together an average PC. The Asus Z170 ROG Maximus VIII Extreme motherboard is for the tireless system builder who can't or won't stop tuning and tweaking, who is always on the hunt for increased performance. For you, we can attest, this premium motherboard will keep you entertained for a good long while.

http://hothardware.com/reviews/asus...sive-oc-platform-for-z170#EfOgQjQRR1Tfzcud.99

Beautiful hardware, although it's hard to justify spending that much and not going LGA 2011 (v3).


HD 520 Gaming Videos (2016 Titles)
- Rise of the Tomb Raider
- Street Fighter V
- Tom Clancy's The Division
- Hitman


New Kabylake entries @ SiSoftware:

http://ranker.sisoftware.net/show_d...82b294fdc0e68eb395edd0f693f6cbfbddae93ab&l=en


In antecipation of Iris Pro 580 - PCLab tested Iris Pro 6200 running some of the latest titles:

http://blog.pclab.pl/mieszko/Granie.na.integrze.Intela,770
 

limsandy83

Member
Apr 10, 2016
26
2
41
Does anyone know if Intel will release Skylake mobile CPU i5-6350HQ anytime soon? It was announced in January and slated for release in Q1. But it's now past due and nowhere near the news that it was going to be released. I can't wait to buy a laptop with this CPU.
 

jpiniero

Lifer
Oct 1, 2010
14,835
5,452
136
Does anyone know if Intel will release Skylake mobile CPU i5-6350HQ anytime soon? It was announced in January and slated for release in Q1. But it's now past due and nowhere near the news that it was going to be released. I can't wait to buy a laptop with this CPU.

OEMs hate Iris Pro. Maybe the upcoming Macbook Pro will use it.
 
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