Intel Skylake / Kaby Lake

[coercitiv]

The Anandtech review for 7600k/7700k has test beds using GTX 980 / R9 290X. At this point it's just just sad.

15W i7-7660U can hit 4 GHz!

That's quite a landmark in mobile.

 

[lolfail9001]

Looks like Kaby Lake is highly suspect in regards to silicon lottery. I managed to go through samples that actually throttles at 4.7Ghz to samples stable at 5.1Ghz on air in a course of 5 reviews.

Also, GT4e is now officially dead.

 

[coercitiv]

Looks like Kaby Lake is highly suspect in regards to silicon lottery. I managed to go through samples that actually throttles at 4.7Ghz to samples stable at 5.1Ghz on air in a course of 5 reviews.

It's likely thermal limitation. Look at the 7600K, in the Anandtech review the 5Ghz 7600K uses as much power as the 4.7Ghz 7700K in OCCT, the last confortably stable 7700K overclock. This should tell us something extra besides the obvious votlage variance required at these high speeds.

The data we have from those posting previews on the forums also points towards thermal problems at 5Ghz, as RichUK and others reported.

 

[Head1985]

Best cpu review as usual
https://www.purepc.pl/procesory/tes...e_i7_7700k_premiera_intel_kaby_lake?page=0,36

 

[Shivansps]

There is a clear wall at 4.9Ghz... but 4.9 or 5.0, what does it matter?


Man i want to see the Pentiums!


Also VP9 8-bit encode support? does Youtube supports VP9 streaming? this could be big.

 

[Trumpstyle]

Can someone explain to me why anandtech review of kaby-lake uses an geforce 980 and radeon 290x in their gaming benchmark? What a complete waste of time that reviewer went through, an titan pascal or 1080 should had been used. Seen some review of kaby-lake and it has decent improvement. But anandtech show 0 improvement because of random reason they uses an old gpu.

 

[Genx87]

Can someone explain to me why anandtech review of kaby-lake uses an geforce 980 and radeon 290x in their gaming benchmark? What a complete waste of time that reviewer went through, an titan pascal or 1080 should had been used. Seen some review of kaby-lake and it has decent improvement. But anandtech show 0 improvement because of random reason they uses an old gpu.

And Win7. I mean what a weird review.

 

[Shivansps]

YEAH, Pentiums now in ARK, full HT for all of them. Celerons still 2/2.

http://ark.intel.com/products/97453/Intel-Pentium-Processor-G4600-3M-Cache-3_60-GHz
http://ark.intel.com/products/97460/Intel-Pentium-Processor-G4620-3M-Cache-3_70-GHz
http://ark.intel.com/products/97143/Intel-Pentium-Processor-G4560-3M-Cache-3_50-GHz

 

[LTC8K6]

http://ark.intel.com/products/codename/82879/Kaby-Lake#@Desktop

Pentiums and Celerons are there.

 

[coercitiv]

That doesn't seem to tell us what we need to know, though. Namely power consumption info. Why use a K chip? And, we don't see a T chip for comparison.

I'll try to come back with some data on this, will see what CB 15 score my chip gets at 35W limit so we can make a meaningful comparison.

Quick update on our T SKU discussion: got some time to test in Cinebench with a 35W package power hard limit. Max clocks were set to 4Ghz, voltage was stock.

• Running CB15 on 4 threads resulted in a score of 595, the i5 6600K averaged about 3.55Ghz while compelting the bechmark.
• Running a custom 3 threaded bench resulted in a score of 496 and an average clock of 3.85Ghz.
• Prime 95 Large FFT load resulted in sustained 2.9Ghz. (28.8 avg)

For reference, the 6600T max 4 thread turbo is 3.3Ghz and the max 3 thread turbo is 3.4Ghz. Base clock is 2.7Ghz. The T CPU may well still use less power than the standard SKU in the loads above, but simply clocking higher than the T CPU at the same 35W TDP outlines the flexibility of using standard CPU in combination with TDP limits to obtain higher performance in a DIY SFF system.

 

[Adam Saint]

The Pentium G4620 looks really impressive for $93 US, it's an i3 in all but name. HT, TSX, 3.7ghz. That'll be tough budget competition and if someone can figure out how to unlock the BCLK again, it'll become a legendary chip

 

[Shivansps]

For the first time in history Intel gained the low end sector hands down and has to force AMD to lower Bristol Ridge APU prices, A6 to Celeron and A8 to Pentium prices.

 

[LTC8K6]

The Pentium G4620 looks really impressive for $93 US, it's an i3 in all but name. HT, TSX, 3.7ghz. That'll be tough budget competition and if someone can figure out how to unlock the BCLK again, it'll become a legendary chip

I don't know...the i3-7100 is just a little more for 3.9Ghz and AVX2.

http://ark.intel.com/compare/97460,97455

 

[SPBHM]

http://ark.intel.com/products/97143/Intel-Pentium-Processor-G4560-3M-Cache-3_50-GHz
this is great, 3.5GHz 4 threads for $64!?

 

[Adam Saint]

Check out the G4560 too... $64 gets you 3.5ghz with HT. Now that with a basic H110 board and 8gb DDR4 would run you $130-ish. I actually find the budget end of the Kaby Lake offerings more interesting than the high end.

 

[Bouowmx]

As with Skylake, Kaby Lake has the lowest Pentium (G4560) with reduced integrated graphics (GT1).

 

[SPBHM]

As with Skylake, Kaby Lake has the lowest Pentium (G4560) with reduced integrated graphics (GT1).

makes no difference, they are all terrible for gaming, you get the g4560 with a GTX 1050 and you are good to go.

 

[Adam Saint]

That's true but, is anyone really bothered? If you game, you'll get a dGPU anyway. If you don't, there's no practical difference between the two.

 

[Shivansps]

G4560 also supports TSX instruccions, it whould be interesting to see if it can make up for the 200mhz loss compared to a I3-6100.

It also seems to have the same Media Block as the rest of the Kaby Lake. Very nice deal indeed.

 

[amenx]

Guru3d reviews are up:

http://www.guru3d.com/articles-pages/core-i7-7700k-processor-review-desktop-kaby-lake,1.html

http://www.guru3d.com/articles-pages/core-i5-7600k-processor-review-desktop-kaby-lake,1.html

 

[Sweepr]

YEAH, Pentiums now in ARK, full HT for all of them. Celerons still 2/2.

http://ark.intel.com/products/97453/Intel-Pentium-Processor-G4600-3M-Cache-3_60-GHz
http://ark.intel.com/products/97460/Intel-Pentium-Processor-G4620-3M-Cache-3_70-GHz
http://ark.intel.com/products/97143/Intel-Pentium-Processor-G4560-3M-Cache-3_50-GHz

For the first time in history Intel gained the low end sector hands down and has to force AMD to lower Bristol Ridge APU prices, A6 to Celeron and A8 to Pentium prices.

Nice find! Pentium G4560 nearly matches Core i3-6100 CPU performance at a much lower price. Considering the latter still packs a punch (this thing can beat older Core i5s and FX in many titles) - this is going to be one hell of a budget CPU ($64). And then if you add a little more - for $82 you get HD 630 (Pentium G4600).

Even at slightly lower clocks than the Core i3 the entry level Pentium will still lead in terms of CPU performance compared to the most expensive AMD APUs:

 

[Shivansps]

All Kaby Lake CPUs now support TSX-NI instruccions, incluiding Celerons, G4560 may end more closer to I3-6100 than the 200mhz may lead to belive.

This may bring some "IPC gains" via TSX when comparing Kaby Lake to Skylake non TSX SKUs.

 

[TheELF]

All Kaby Lake CPUs now support TSX-NI instruccions, incluiding Celerons,
-
snip
-

Needed for optane dims to work maybe?

 

[RichUK]

So basically, the majority of AMD's product range is effectively neutralised and Intel are positioned well for a strong Q4 growth trajectory.

 

[Shivansps]

Needed for optane dims to work maybe?

I dont know, if a Celeron or Pentium did not supported optane dimms, no one whould care.

 

[Sweepr]

Guru3d reviews are up:

http://www.guru3d.com/articles-pages/core-i7-7700k-processor-review-desktop-kaby-lake,1.html

http://www.guru3d.com/articles-pages/core-i5-7600k-processor-review-desktop-kaby-lake,1.html

5 GHz i7-7700K offers almost twice i7-2600K (stock) performance. It's the last hurrah of Intel' mainstream quad-cores before Coffee Lake-S increases the core count, and personally I think this kind of per thread performance will be hard to beat by a significant margin in the coming years, even for Intel - maybe overclocked versions of Kaby Lake-X or Skylake-X with 1MB L2/core will do the trick, otherwise we'll have to wait for Ice Lake-S.