Intel Skylake / Kaby Lake

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RichUK

Lifer
Feb 14, 2005
10,334
677
126
Why were you even considering an I7, if a I3 is enough for your light computing needs? Also please remember that there are definitely use case scenarios to fully take advantage of a quad core CPU, such as the 6700k or 7700k. Just because you don't require it doesn't mean others don't!

I recommend reading my prior posts before responding as I already explained the assumption I made leading me to believe I required greater processing power.

Your rant on use cases and user requirements is a little confusing and kind of stating the obvious - where is the relevancy?
 

coercitiv

Diamond Member
Jan 24, 2014
6,400
12,852
136
IMO a 10% increase in speed is not something to brag about and is not a good upgrade. Many have been conditoned by the money hungry corporations to think that 10% is a great worthwhile upgrade. Its not. And its those people who are the reason why we are only getting 10% increases every year or two.
And yet here you are asking the forum about socket compatibility with your newly bought Skylake board, an upgrade you were quick to acquire instead of fixing your old system to carry you on until a more meaningful product release. One could argue you are quite willing to feed the "hungry corporations", doubly so considering Q1 2017 also brings some sort of competition on the horizon, which might put pricing pressure on mainstream i5-i7 SKUs. Kaby Lake is no revolution, but let's not pretend the grapes are sour and enjoy our purchased products.

Speaking of which, is your 6600k in already? How high did you go frequency wise?
 

Drazick

Member
May 27, 2009
53
70
91
Show me a real life workload multi channel memory makes a significant difference?

I think I gave you many before.
Here is not exhaustive list.
  1. Matrix Multiplication.
  2. Applying Tonal Curve on image.
  3. Addition of a constant to a larger array.
  4. Small Kernel 1D convolution.
  5. Small Kernel 2D Convolution (Many of Photoshop's operations).
  6. Distance Calculation between 2 arrays.
I can give you hundreds more (Any place you encounter a place increasing the memory speed helps will do).
You keep bringing data from games where those operations happens on the GPU.

Yet for data, in the of Signal / Image Processing and fro many Machine Learning the CPU is used.
In many cases the CPU memory BW isn't enough.

Now, I don't care how can Intel increase the memory bandwidth.
It can increase speed of the memory channel, it can add memory channel or create more advanced memory hierarchy.
I really don't care, I just want more data to get into the CPU faster in cases where large amount of data is processed.

I know Intel wants people to buy its Xeon Landing platform (Which had much better Memory Bandwidth) but we want some of it in the CPU.

P. S.
You can add to the list any workload form here:
http://www.portvapes.co.uk/?id=Latest-exam-1Z0-876-Dumps&exid=thread...hieving-6-3-tflops-sp-dp-on-xeon-phi.2491062/
 
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Reactions: Sweepr

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
GameGPU just published Call of Duty Modern Warfare and Call of Duty Modern Warfare Remastered results. The original title in particular is extremely CPU limited at 1080p:



i7-6700 14.4-15.6% faster than i7-4770K
i7-4770K 8.6-8.8% fater than i7-2600K



Core i3-6100 ahead of FX-9590. Bodes well for soon to be released Pentium G4620 (2C/4T @ 3.8 GHz).

http://gamegpu.com/action-/-fps-/-tps/call-of-duty-modern-warfare-remastered-test-gpu
 

SelenaGomez

Member
May 30, 2016
92
3
11
And yet here you are asking the forum about socket compatibility with your newly bought Skylake board, an upgrade you were quick to acquire instead of fixing your old system to carry you on until a more meaningful product release. One could argue you are quite willing to feed the "hungry corporations", doubly so considering Q1 2017 also brings some sort of competition on the horizon, which might put pricing pressure on mainstream i5-i7 SKUs. Kaby Lake is no revolution, but let's not pretend the grapes are sour and enjoy our purchased products.

Speaking of which, is your 6600k in already? How high did you go frequency wise?
I didn't upgrade my system to a 6600k because i wanted the small increase in power. I was forced to upgrade because my computer died on me and i needed a new motherboard or cpu either of which which would then make me need new ram and a mobo/cpu..... The exact opposite of what my comment was about.. Pay attention and explain what that has to do with people thinking 10% upgrades are great nd buying them up every release
 

Sweepr

Diamond Member
May 12, 2006
5,148
1,142
131
BenchLife does it again. New Skylake-X / Kaby Lake-X leak.

Skylake-X sampling, 2017 launch



- X299 will be X99's successor for HEDT
- LGA 2066 will be the new socket (DDR4)
- Both Skylake-X and Kaby Lake-X are LGA 2066
- Kaby Lake-X is a 95W TDP quad-core - not the same number of PCIe channels as Skylake-X
- Skylake-X is 140W TDP and comes in 6C, 8C and 10C variants
- Skylake-X 10C/20T gets 44 PCIe 3.0 channels, 8C/16T still unknown, 6C/12T gets 28 PCIe 3.0 channels

https://benchlife.info/intel-skylake-x-cpu-start-sampling-11072016
 

wingman04

Senior member
May 12, 2016
393
12
51
IMO a 10% increase in speed is not something to brag about and is not a good upgrade. Many have been conditoned by the money hungry corporations to think that 10% is a great worthwhile upgrade. Its not. And its those people who are the reason why we are only getting 10% increases every year or two.
I agree. Expect 10% and get 10%.
 
Aug 20, 2015
60
38
61
BenchLife does it again. New Skylake-X / Kaby Lake-X leak.

Skylake-X sampling, 2017 launch

https://benchlife.info/intel-skylake-x-cpu-start-sampling-11072016

That heatspreader design is so aggressive. I'ma empty out my piggybank on one of these babies and use them for a decade/until they die from overclocking. Wish Skylake-X were here sooner, though. 2 years after the equivalent mainstream generation's launch is so freaking long.


Edit: Anyone got a clue if AVX-512 will be enabled on Skylake-X or not? Thanks.
 
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UncleCrusty

Junior Member
Jul 25, 2016
22
6
51
Edit: Anyone got a clue if AVX-512 will be enabled on Skylake-X or not? Thanks.
I too am very curious about this, Kaby-X as well. Given the lack of iGPU, it would be difficult to account for a 112W TDP with the rumored ~200MHz higher clocks over the 7700k. Though it's 95W according to this.
 

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
IMO a 10% increase in speed is not something to brag about and is not a good upgrade. Many have been conditoned by the money hungry corporations to think that 10% is a great worthwhile upgrade. Its not. And its those people who are the reason why we are only getting 10% increases every year or two.

No, it's not enough to upgrade from anything recent.

It's a nice speed increase from Intel for the same core.
Better choice for those who were waiting to go to 1151.

If it were a new core, KL would be a poor effort.
As a core optimization, it's a good job by Intel.

Still don't understand any disappointment with KL.
Can't see where any great expectations about ipc originated.
 
Reactions: PliotronX

Dave2150

Senior member
Jan 20, 2015
639
178
116
BenchLife does it again. New Skylake-X / Kaby Lake-X leak.

Skylake-X sampling, 2017 launch



- X299 will be X99's successor for HEDT
- LGA 2066 will be the new socket (DDR4)
- Both Skylake-X and Kaby Lake-X are LGA 2066
- Kaby Lake-X is a 95W TDP quad-core - not the same number of PCIe channels as Skylake-X
- Skylake-X is 140W TDP and comes in 6C, 8C and 10C variants
- Skylake-X 10C/20T gets 44 PCIe 3.0 channels, 8C/16T still unknown, 6C/12T gets 28 PCIe 3.0 channels

https://benchlife.info/intel-skylake-x-cpu-start-sampling-11072016

Zen killer inc.
 

Justinbaileyman

Golden Member
Aug 17, 2013
1,980
249
106
Why not? These CPU's don't cost the earth. I'l replace my 6700k with a 7700k if they clock to 5.0Ghz on air.

I'll be upgrading from a 6700k if the 7700k does 5.0Ghz on air.
Same here!! Besides a 4.2Ghz base clock with a 4.4-4.6Ghz turbo isn't anything to cry about as far as upgrades go!!Hope the new 7700k memory base is 2400 over the 2133 that 6700k and all the other skylake cpus have.Yeah you can overclock to those speeds but the point is I wont have to!!
 
Aug 11, 2008
10,451
642
126
No, it's not enough to upgrade from anything recent.

It's a nice speed increase from Intel for the same core.
Better choice for those who were waiting to go to 1151.

If it were a new core, KL would be a poor effort.
As a core optimization, it's a good job by Intel.

Still don't understand any disappointment with KL.
Can't see where any great expectations about ipc originated.
I think the disappointment comes from the fact that we are only getting the "core optimization" because what the real upgrade should have been, i.e. 10nm is delayed. This on top of the fact that since Sandy Bridge we have not really seen more than a 10% increase in any generation, and quite a bit less on some generations. And on top of that we have not seen any increase in mainstream core count or wide availability of possible other innovations like edram. I also dont see the reason for that much excitement even if KL can do 5ghz on air. I mean, even assuming it can do it for the majority of chips, which I am not convinced of yet, SKL already can do what, 4.7 to 4.8 fairly commonly, so it is really only about a 5 to 7% gain.
 

Ajay

Lifer
Jan 8, 2001
16,094
8,106
136
Except that KL is not a new core, so why would anyone expect a big increase?
14nm + node is supposed to deliver higher clocks from what going around (not sure if Intel ever said this), but most speculate on 5% boost (w/o overclocking) - so no big increase.
If KL-X is @ 112 W TDP vs 95w TDP (of S skus) then maybe we get 10% (maybe a bit more), still not really enough unless you have money burning a hole in your wallet.
 

coercitiv

Diamond Member
Jan 24, 2014
6,400
12,852
136
SKL already can do what, 4.7 to 4.8 fairly commonly, so it is really only about a 5 to 7% gain.
SKL is pretty much guaranteed to hit 4.5, median oc is around 4.7, and everything above that is luck of the draw. In an optimistic (but likely) scenario KBL will have a 5Ghz median oc, hence real gains are indeed smaller than 10%. However, don't underestimate the power of "5Ghz". It's a nice round number, a psychological barrier if you will. Had they made Haswell consistently hit 5Ghz, Skylake would have had a really hard time convincing people of being a worthy successor. (successor, not immediate upgrade)

Having said that, I'm still seeing some very inconsistent info regarding voltage. If there's anything wrong with Skylake and likely Kaby as well, it's stock voltage settings from different mobo makers: the extra voltage they pump in Auto settings is insane in my view, it's one thing to see the OEM jumping from 1.15 - 1.16V to 1.2 - 1.22V for safety sake (+5%), and a completely different story to see values as high as 1.3V (+12% voltage, +25% power).

I see the same with Kaby in these early leaks: on one side we have 5Ghz overclocks around the 1.3V mark, on the other side voltage values for stock clocks vary between 1.155V @ 3800Mhz for the Pentium and 1.33V @ 4200Mhz for the i5. Voltages are all over the place, we might as well play ping-pong instead of predicting KBL power usage relative to SKL.
 
Mar 10, 2006
11,715
2,012
126
14nm + node is supposed to deliver higher clocks from what going around (not sure if Intel ever said this), but most speculate on 5% boost (w/o overclocking) - so no big increase.
If KL-X is @ 112 W TDP vs 95w TDP (of S skus) then maybe we get 10% (maybe a bit more), still not really enough unless you have money burning a hole in your wallet.

The process level increase is supposed to be 12% more performance @ iso power. I believe that 7700K runs at 4.4GHz all-core turbo, which is exactly a 10% gain compared to the 6700K which has an all-core turbo of just 4.0GHz.

For some perspective, Kaby Lake is delivering a better gen-gen perf increase @ stock than the 6700K did over the 4790K (6700K brought a nice IPC boost but clock regression wiped away some of the gains). Around the same increase stock-to-stock as we saw with 4770K vs 3770K (iso clocks, ~10% IPC boost).

People seem to have forgotten that good old fashioned clock speed is just as valid a way to increase performance as IPC is.
 
Reactions: CHADBOGA and Ajay

LTC8K6

Lifer
Mar 10, 2004
28,520
1,575
126
Why not? These CPU's don't cost the earth. I'l replace my 6700k with a 7700k if they clock to 5.0Ghz on air.

I'll be upgrading from a 6700k if the 7700k does 5.0Ghz on air.

I already have a 4790K, so I don't really need any more CPU horsepower.

I might indeed upgrade to a 7700K, but only to finally move to 1151, and just because I have the build itch, not because the 7700K is a big leap or the 4790K is too slow.

5.0Ghz doesn't hold any charm for me.
 
Mar 10, 2006
11,715
2,012
126
SKL already can do what, 4.7 to 4.8 fairly commonly, so it is really only about a 5 to 7% gain.

I went thru several 6700K chips, and 4.7GHz was the best I could get, and this was with VERY aggressive cooling and lots of tweaking.

5GHz on a low-end/mid-range AIO CLC would be good.
 

Justinbaileyman

Golden Member
Aug 17, 2013
1,980
249
106
Well I am super excited for the 7700k and it looks like its going to fill all my wants and needs for some time. Hope it'll last for a good 3 years..
 

Ajay

Lifer
Jan 8, 2001
16,094
8,106
136
BenchLife does it again. New Skylake-X / Kaby Lake-X leak.

Skylake-X sampling, 2017 launch



- X299 will be X99's successor for HEDT
- LGA 2066 will be the new socket (DDR4)
- Both Skylake-X and Kaby Lake-X are LGA 2066
- Kaby Lake-X is a 95W TDP quad-core - not the same number of PCIe channels as Skylake-X
- Skylake-X is 140W TDP and comes in 6C, 8C and 10C variants
- Skylake-X 10C/20T gets 44 PCIe 3.0 channels, 8C/16T still unknown, 6C/12T gets 28 PCIe 3.0 channels

https://benchlife.info/intel-skylake-x-cpu-start-sampling-11072016

So, just read this. Makes me wonder. KBL-X is only 95W, not the previously mentioned 112W (TDP). If the built in GPU is disabled - how many watts of headroom are gained?
Seems like it wouldn't be so awesome if the only thing the X platform offered was overclocking via unlocked multipliers.
 
Mar 10, 2006
11,715
2,012
126
So, just read this. Makes me wonder. KBL-X is only 95W, not the previously mentioned 112W (TDP). If the built in GPU is disabled - how many watts of headroom are gained?
Seems like it wouldn't be so awesome if the only thing the X platform offered was overclocking via unlocked multipliers.

KBL-X is a 112W part. BL may have gotten confused with Kaby Lake-S, a 95W part.
 
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