Wednesday, February 8th 2017

Intel Core i7-7740K and i5-7640K Codenamed "Kaby Lake-X," 112W TDP, No IGP

The two new quad-core processors Intel is fielding against AMD Ryzen, the Core i7-7740K and the Core i5-7640K, which we described in our older article, will be based on a refined (or at least relabeled) silicon, codenamed "Kaby Lake-X." The current i7-7700K and i5-7600K desktop chips are based on the same silicon as the rest of the 7th generation Core processor lineup, codenamed "Kaby Lake-S." It was also reported in the older article that the TDP of these chips will be rated at 100W. Turns out that they're rated even higher, at 112W, according to PC Games Hardware (PCGH). The top-dog AMD Ryzen R7-1800X features 95W TDP.

According to PCGH, what sets Kaby Lake-X apart from Kaby Lake-S appears to be Intel disabling the integrated graphics. You now need a graphics card to get going with these chips, and it will get trickier if you want to recover your graphics card from a bad BIOS flash. The chips also reportedly feature a high-performance thermal interface material (TIM) under the integrated heatspreaders (IHS). Compared to the i7-7700K and i5-7600K, these chips feature minor 100 MHz speed-bumps, but Intel could make them better overclockers.

Update: Apparently these two chips are built in the new socket 2660 package, and will be launched around Gamescom, some time in August.Source: PCGH
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68 Comments on Intel Core i7-7740K and i5-7640K Codenamed "Kaby Lake-X," 112W TDP, No IGP

#2
the54thvoid
100mhz over the 7700k? No iGPU?

Well, if true (and not sure it is) this bodes well for Ryzen. Desperate clawing attempt by Intel.
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#3
s17speedex
100mhz; don't spend it all in one place.
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#4
Mussels
Moderprator
if they solder the IHS, its worth it for the high end crowd
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#5
nemesis.ie
Mussels said:
if they solder the IHS, its worth it for the high end crowd
I doubt they will do that but if the competition is really firce they might, this sounds very like a "Devil's canyon 2.0". ;)
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#6
Dj-ElectriC
How the hell do you manage to increase performance by 2-3% and screw up a chip's total tdp by 30%+ is beyond me
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#7
nemesis.ie
Especially when you are disabling the IGP ...
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#8
eidairaman1
Dj-ElectriC said:
How the hell do you manage to increase performance by 2-3% and screw up a chip's total tdp by 30%+ is beyond me
Think of it like 9370/9590...

Intel is now having to scramble for Ideas...
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#9
GC_PaNzerFIN
nemesis.ie said:
Especially when you are disabling the IGP ...
Allows you to sell worse chips (expand production limits), but also does not automatically mean it ever does use over 20W more power.
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#10
chaosmassive
because cut price of CPU is insult to their dignity
so yeah...
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#11
Chaitanya
112W and no Igp, I would much rather get a X99 based system before this kneejerk reaction of cpus.
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#13
IceScreamer
Hmm, this looks to be a sign that AMD really has something decent in their hands. But seriously, what's up with that TDP, I know clocks rise the TDP but 21W for a 100Mhz clock seems high.
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#14
kruk
The original article has been updated and there it now says the CPUs will appear on a new socket 2066 around Gamescom.
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#15
Nosada
I have no horse in the CPU race, but I have to admit I was expecting more from Intel than this panic reaction. Here I was, thinking they weren't really stagnating, just holding back for the moment AMD offered some semblance of competition. Seems I was wrong.

I don't know what kind of information Intel has on Ryzen, but going by this feeble attempt at thunder-stealing, they at least seem to think they are up against something worth countering.
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#16
the54thvoid
kruk said:
The original article has been updated and there it now says the CPUs will appear on a new socket 2066 around Gamescom.
Yeah, article says this:
PC Games Hardware was able to find out from its own resources, the subject matter, that the Core i7-7740K and i5-7640K actually should appear, but not as a timely Ryzen counter-attack and also not as Kaby Lake-S. Rather, it is the 112-Watt chips with code names Kaby Lake-X, which are to appear to Gamescom for the new high-end platform with base 2066. These are the same S-Dies, in which only the GPUs are deactivated and the TDPs are raised. The Heatspreader is not soldering to Intel, but is based on its "Thermal Interface Material". The Intel i7-7740K has a 100 MHz increased basistakt compared to the i7-7700K, but needs the same 4.5 GHz turbo .
So it's Kaby X and effectively Skylake X it's talking about. Kaby X has been on the radar for a while. So, this is not news at all.
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#17
1c3d0g
:shadedshu: As a die-hard Intel fan, these kinds of announcements disgust me!

I really do hope Ryzen has what it takes to bring very competitive performance for a very low price. If AMD manages this, let's say comparable 8-core performance for half the price, even I will convert my system to Ryzen. My measly 4-core Haswell has been getting very long in the tooth now...
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#18
ShurikN
kruk said:
The original article has been updated and there it now says the CPUs will appear on a new socket 2066 around Gamescom.
A new platform from Intel... no way, out of the blue. Who would have thought.
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#19
the54thvoid
ShurikN said:
A new platform from Intel... no way, out of the blue. Who would have thought.
They're not new though. They're the next HEDT platforms. The 'E' tag has been lost and it's now called 'X'. It's been on the roadmap for a while now.
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#20
cotes42
Damn! Wish I had bought stocks in AMD when they were lower a week ago!
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#21
R-T-B
Skylake does have decent hyperthreading gains over Haswell, but still, 100Mhz... Meh.

EDIT: Wait, I misread the article and assumed these were HEDT parts with 6 or more cores... where the heck is the TDP going?
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#22
RejZoR
Yet another socket? Intel is changing them like underwear, where AMD only got to AM4 just now. One of reasons why AMD was more popular among casual users. You could just have 1 motherboard and keep on sticking in new CPU's.
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#23
Nokiron
RejZoR said:
Yet another socket? Intel is changing them like underwear, where AMD only got to AM4 just now. One of reasons why AMD was more popular among casual users. You could just have 1 motherboard and keep on sticking in new CPU's.
LGA2066 is the same socket as the next HEDT. That's better than before isn't it? Getting the more "standard" processors on that platform aswell.
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#24
theoneandonlymrk
Nokiron said:
LGA2066 is the same socket as the next HEDT. That's better than before isn't it? Getting the more "standard" processors on that platform aswell.
If you have more money and invest in hedt motherboard why would you want a mainstream CPU in it??
That platform needs more pciex lanes and memory channels then the chips can at this moment provide so half hedt's performance advantage wouldn't be used, pointless imho.
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#25
LDNL
Let me guess... Intel is gonna charge for these chips that have a broken IGP, faulty power / leaking or for any other reason they didnt pass the QC more than the current ones?
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