Intel Skylake / Kaby Lake

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Mar 10, 2006
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I still didn't pull the trigger.Its all still sitting in my cart but for some reason I just haven't been able to bring myself to complete the transaction. I dont wanna buy into a dead end platform even though it just came out.$350.00 bucks is a ton of money to me right now just to blow on a cpu,mobo,and ram just to have to buy another socket mobo 6 months later for Kabylake support.

It's not a dead platform, Z170 will support Kaby Lake.



But I still don't know why upgradeability to Kaby Lake is a big deal. Kaby Lake is mainly an iGPU/media upgrade, some very minor CPU architectural improvements (think of the CPU as a newer revision of the Skylake core), and a tweak of the 14nm process. It's not going to be worth your time to buy a Z170 board & a cheap Skylake only to sell the Skylake CPU in favor of a Kaby Lake CPU.
 
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ShintaiDK

Lifer
Apr 22, 2012
20,378
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There is zero reason to wait if you want a 6700K CPU. The Kaby Lake version of that wont offer anything meaningful. In that case you already want to wait till Cannonlake or Icelake.

So if you want a 6700K class CPU, buy the 6700K now. Nothing will change that the next 1½-2 years.
 

SuperJaw

Junior Member
Jan 10, 2016
20
0
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There is zero reason to wait if you want a 6700K CPU. The Kaby Lake version of that wont offer anything meaningful. In that case you already want to wait till Cannonlake or Icelake.

So if you want a 6700K class CPU, buy the 6700K now. Nothing will change that the next 1½-2 years.


This.... better to by one high end CPU every 2-3 than a cheap one every year. You'll have better performance over the next couple years for less money.

Caveat, this is only true if you need the performance. I'm running a i3 6100, and it's fast even editing RAW photos in Lightroom, glad I saved my money.
 

mizzou

Diamond Member
Jan 2, 2008
9,734
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This.... better to by one high end CPU every 2-3 than a cheap one every year. You'll have better performance over the next couple years for less money.

Caveat, this is only true if you need the performance. I'm running a i3 6100, and it's fast even editing RAW photos in Lightroom, glad I saved my money.

This is actually pretty sound advice when it comes to gaming. A good CPU will last much much longer then a GPU in my opinion.
 

Sweepr

Diamond Member
May 12, 2006
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Justinbaileyman

Golden Member
Aug 17, 2013
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This.... better to by one high end CPU every 2-3 than a cheap one every year. You'll have better performance over the next couple years for less money.

Caveat, this is only true if you need the performance. I'm running a i3 6100, and it's fast even editing RAW photos in Lightroom, glad I saved my money.

Yeah but I'm a cheapskate and like buying the cheapest I can to get the best performance I can. Thats why I buy crap like AMD 5350 or Intel g3258 and raspberry Pi 3's I guess I am an extreme budget elitist LOL.Besides I can't afford a 6700K right this second.I have a wife that would cut off my balls if I spent that much on computer parts right now.I'm Kinda pushing it as it is trying to buy a i3 6300..
 

Dresdenboy

Golden Member
Jul 28, 2003
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citavia.blog.de
Did we already have a SRAM density discussion in here? Yesterday I measured the L2 and L3 SRAM arrays (leaving out even the thin spaces) of Skylake using a high res die photo (19.9um^2/pixel). Result: ~0.093 um^2/bitcell
If this is correct, it would be even bigger than the biggest of the 3 reported 14nm SRAM cells variants. And still the SRAMs are rather tiny (look at these L2s!).
 

Nothingness

Platinum Member
Jul 3, 2013
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Apple's Skylake Macbook is one of the fastest Core M devices out there:

- 2016 Macbook (Core m5-6Y54)
ST: 2960
MT: 5875

- Highest Core m3-6Y30 score (from a Surface Pro 4)
ST: 2579
MT: 4966

- Highest Core M-5Y51 score (from a 2015 Macbook)
ST: 2632
MT: 5470

https://browser.primatelabs.com/geekbench3/6151181
https://browser.primatelabs.com/geekbench3/4248039
https://browser.primatelabs.com/geekbench3/4072708
Highest Core M-5Y71 from a 2015 Macbook is 2895/5828: https://browser.primatelabs.com/geekbench3/4986716
 

Sweepr

Diamond Member
May 12, 2006
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After ASRock's new non-K OCable motherboards, this guy tested if overclock was still possible with locked Skylake CPUs and MSI's latest BIOSes, after the microcode update.

Updated MSI Z170 Non-K Overclocking Guide

Several media reported some stuff about microcode updates, Intel blocking non-K OC and all kind of stuff. However, I can confirm that non of that stuff is true. You can still happily overclock your non-K CPU!



http://overclocking.guide/updated-msi-z170-non-k-overclocking-guide-new-bios


One of the few Xeon E3 v5 reviews out there:

Intel Xeon E3-1275 v5 review: i7 for next to nothing

In addition to the cast in August Skylake mainstream processors also be released Xeon processors based on this architecture. Basically, these are designed for workstations and servers, but by their usually slightly lower price, they are also attractive to home users. We therefore see in this review how well a Xeon, compared with a normal Skylake.

Why would you take a Xeon processor, rather than a 'normal' Skylake? The price is, in most cases, some more attractive. Although there are exorbitantly expensive Xeon Skylakes, you pay in most cases a few bucks less than for a comparable 'mainstream processor. For example, let's look at the Core i7 6700 (without K) and the Xeon E3-1230 v5. Both have a clock speed of 3.4 GHz. The Xeon costs on average 300 euros, while you have to cough up for the Core i7 360 euros. The two disadvantages of this Xeon are that it has a slightly lower turbo speed (3.8 GHz, compared to 4 GHz for the i7) and that it has no on-board IGP. That seems to us no insurmountable drawbacks, especially if you're already was planning to use a graphics card.

Before Skylake was moreover still possible to use Xeon processors in combination with the mainstream chipsets. Intel has now made impossible, so you need to buy a special motherboard based on the purchase C232 / C236 chipsets intended for servers. No worries, the major manufacturers have already announced special plates and released with functionality that appeals to the ordinary home user. Very soon you can expect on Hardware.Info a roundup of motherboards with six models!

http://nl.hardware.info/reviews/6561/intel-xeon-e3-1275-v5-review-i7-voor-een-prikkie
 

Sweepr

Diamond Member
May 12, 2006
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Acer's new fanless 2-in-1 is powered by regular Core i3/i5/i7 (Skylake-U) instead of Core M (Skylake-Y). Decent price as well, base model is $300 cheaper than the Surface Pro 4.

Acer's Switch Alpha 12 is the first fanless 2-in-1 with a proper Intel Skylake Core series processor



Liquid cooling a PC is far more common than it used to be thanks to a barrage of self-contained, plug-and-play kits. The one common theme you’ll find, however, is that nearly all liquid-cooled PCs are of the desktop variety which makes products like Acer’s new Switch Alpha 12 a rarity.

...Nevertheless, the Switch Alpha 12 is the first fanless hybrid 2-in-1 to be powered by Intel’s sixth generation Core I processor rather than the slower Core M chip found in other hybrids and Apple’s new MacBook. As the name suggests, the device features a 12-inch IPS touch display which operates at a resolution of 2,160 x 1,440. It can be outfitted with up to 8GB of RAM and 512GB of local flash storage.

The Switch Alpha 12 includes a detachable, backlit keyboard and a kickstand, putting it firmly in line to compete with Microsoft’s Surface Pro 4. It doesn’t come with a stylus, however, which is something you do get with the Surface Pro 4. Acer says the Switch Alpha 12 weighs roughly two pounds without the keyboard dock. With it, the setup measures 0.62 inches thick and tips the scales at 2.76 pounds.

Pricing will start at $599 when it goes on sale in June (that’s with a Core i3U chip, mind you). No word yet on how much a top-end model with 8GB of RAM, a 512GB SSD and a Core i7 will run you. For reference, the Surface Pro 4 starts at $899.

www.techspot.com/news/64532-acer-switch-alpha-12-first-fanless-2-1.html
 
Aug 11, 2008
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IntelUser2000

Elite Member
Oct 14, 2003
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With a configurable TDP-down of 7.5W I don't see much of a problem keeping thermals in check as long as a metal casing is used.

Liquid cooling a PC is far more common than it used to be thanks to a barrage of self-contained, plug-and-play kits. The one common theme you’ll find, however, is that nearly all liquid-cooled PCs are of the desktop variety which makes products like Acer’s new Switch Alpha 12 a rarity.
The real question is then whether it can or can not cool it but will it be reliable?

Acer does weird things like this and the S5 which had the gimmicky and likely unreliable MagicFlip port.
 
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SAAA

Senior member
May 14, 2014
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So my crystal ball tells me Kabylake will be within 5% of Skylake IPC, it's essentially a refresh with +100/200MHz clocks on most parts:

http://browser.primatelabs.com/geekbench3/compare/6156767?baseline=6230599

Skylake i3-6100U
ST int: 2330
MT int: 5414
ST flt: 2292
MT flt: 5729

Kabylake unknown, possibly an i3-7xxxU given the score/clocks
ST int: 2451
MT int: 5862
ST flt: 2404
MT flt: 5843

Score normalized for clock give about 1-4% difference, assuming they run at full 2.3 and 2.4GHz respectively. Slight regression in MT flt might just be a bench error (too close to see any difference XD).

Redeming features might be the lates video integrated accelerators and maybe new instructions if they enable AVX3, that's about it.
 

DrMrLordX

Lifer
Apr 27, 2000
21,807
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Redeming features might be the lates video integrated accelerators and maybe new instructions if they enable AVX3, that's about it.

I'm not trying to be too much of a downer or anything, but I don't think AVX3 will be there unless AVX3 is something different from AVX512 (in which case, I have no idea about AVX3). And don't be surprised if Kabylake's IPC is identical to Skylake . . . that is, not even + 1-4%. It should have support for some more media codecs in hardware though. Maybe some other stuff.
 

Dresdenboy

Golden Member
Jul 28, 2003
1,730
554
136
citavia.blog.de
Score normalized for clock give about 1-4% difference, assuming they run at full 2.3 and 2.4GHz respectively. Slight regression in MT flt might just be a bench error (too close to see any difference XD).
These 3 very similar differences in FP MT might be due to thermal conditions.
 

Nothingness

Platinum Member
Jul 3, 2013
2,757
1,405
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That iPad Pro graphics, though...

Embarrassing for Intel.
The ST Geekbench score of the iPad in the Arstechnica review is also quite good; I'd not say it is embarrassing, but seeing it above Skylake is nonetheless impressive.

Sweepr, there are some better ST results for Skylake Core M, though the one you showed definitely is better at MT. This one for instance: https://browser.primatelabs.com/geekbench3/6235640
 
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