Friday, November 4th 2016

Intel Core i5-7600K Tested, Negligible IPC Gains

Ahead of its launch, a Core i5-7600K processor (not ES) made its way to Chinese tech publication PCOnline, who wasted no time in putting it through their test-bench, taking advantage of the next-gen CPU support BIOS updates put out by several socket LGA1151 motherboard manufacturers. Based on the 14 nm "Kaby Lake" silicon, the i5-7600K succeeds the current i5-6600K, and could be positioned around the $250 price-point in Intel's product-stack. The quad-core chip features clock speeds of 3.80 GHz, with 4.20 GHz max Turbo Boost frequency, and 6 MB of L3 cache. Like all its predecessors, it lacks HyperThreading.

In its review of the Core i5-7600K, PCOnline found that the chip is about 9-10% faster than the i5-6600K, but that's mostly only due to its higher clock speeds out of the box (3.80/4.20 GHz vs. 3.50/3.90 GHz of the i5-6600K). Clock-for-clock, the i5-7600K is just about 1% faster, indicating that the "Kaby Lake" architecture offers only negligible IPC (instructions per clock) performance gains over the "Skylake" architecture. The power-draw of the CPU appears to be about the same as the i5-6600K, so there appear to be certain fab process-level improvements, given the higher clock speeds the chip is having to sustain, without a proportionate increase in power-draw. Most of the innovation appears to be centered on the integrated graphics, which is slightly faster, and has certain new features. Find more performance figures in the review link to PCOnline below.
Sources: PCOnline.com.cn, WCCFTech
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116 Comments on Intel Core i5-7600K Tested, Negligible IPC Gains

#101
efikkan
BlueberriesWhat a disappointment, I was expecting at least a 5% increase in IPC if not 7-8%. HVEC improvements are great, but I can stream 4k@60FPS with an i3-6320 so I'm not jumping out of my seat for KL.
Who has lead you to believe that KabyLake will lead to IPC changes? Intel just released a new architecture called Skylake, it's not like they're going to have a brand new one each year.
Posted on Reply
#102
Blueberries
efikkanWho has lead you to believe that KabyLake will lead to IPC changes? Intel just released a new architecture called Skylake, it's not like they're going to have a brand new one each year.
Intel has been consistently increasing IPC even with refresh architectures, I expected the trend to continue.
Posted on Reply
#103
EarthDog
BlueberriesIntel has been consistently increasing IPC even with refresh architectures, I expected the trend to continue.
it didn't with haswell->devil's canyon.
Posted on Reply
#104
ratirt
BlueberriesIntel has been consistently increasing IPC even with refresh architectures, I expected the trend to continue.
Yeah Intel's refreshing. Calling it new gen cpu which delivers about 1%-2% performance increase. If you are proud of Intel then great. For me this approach sucks.
Posted on Reply
#105
Prima.Vera
ratirtYeah Intel's refreshing. Calling it new gen cpu which delivers about 1%-2% performance increase. If you are proud of Intel then great. For me this approach sucks.
For Intel it's not! :) Is another billions to their accounts for basically...nothing ;) ;)
Posted on Reply
#106
Blueberries
ratirtYeah Intel's refreshing. Calling it new gen cpu which delivers about 1%-2% performance increase. If you are proud of Intel then great. For me this approach sucks.
It adds up pretty quick, and the alternative is what, no IPC increase? Sandy to Skylake is at least a 25% increase in IPC, which is incredibly significant.

We now have 51W Intel Cores with the single thread performance of earlier 2011/2012 Core CPUs overclocked @ 5.0GHz that have a TDP over 140W and a much higher voltage.
Posted on Reply
#107
ratirt
BlueberriesIt adds up pretty quick, and the alternative is what, no IPC increase? Sandy to Skylake is at least a 25% increase in IPC, which is incredibly significant.

We now have 51W Intel Cores with the single thread performance of earlier 2011/2012 Core CPUs overclocked @ 5.0GHz that have a TDP over 140W and a much higher voltage.
Skylake is faster but 25% is an exaggeration. For example in games when you play at 1080p resolution it may have an impact and sky is better but when you switch to 2k resolution, the difference is none or maybe 1-2% which is nothing. Especialy if you consider sandy being 7 years old today. Situtation is looking better for sky when SLI. That's a simple example as for gaming. Also you can still bump sandy's clocks drastically which makes the difference almost gone. And of course what's most important for all gamers or PC enthusiasts price. Sandy or ivy (if you would like to kick things up a notch) is way less expensive as a CPU Mobo or other DDR's. With the power cosuption I wouldn't go that far. concering the entire year of playing you would not feel the difference in your wallet paying with sandy. It is more but please it wont be that much. Paying for sky I7 6700 does change things bro :) at least for me.
Posted on Reply
#108
David Fallaha
Nuckles56Clearly Intel isn't worried about Zen then if there is no IPC boost
yeah...right...maybe you'd realise there are limits to IPC improvements

perhaps you should consider why Intel is going 6-core mainstream soon?
Posted on Reply
#109
newconroer
Say thanks if you're still rocking or a supporter of i7/i5 2700/2600/2500k ; the stronger Intel chip ever - still kicking ass five years since it's launch and keeping all it's successors honest.
Posted on Reply
#110
Khanivore
newconroerSay thanks if you're still rocking or a supporter of i7/i5 2600/2500k ; the stronger Intel chip ever - still kicking ass five years since it's launch and keeping all it's successors honest.
i7-2700K@4.6GHz :)
Posted on Reply
#111
ratirt
Well there's a bit difference with Sandy and Skylake. The last one is a bit better but yeah if you got sandy and you can OC switching to skylake is pointless. I'd wait for better chips. Got Ivy 3770k and I will only sell it if zen shows up on the market kicking intel Kaby ass. :) Would really like that since it's been so long since I used an AMD chip :) Would be great to switch to a new platform with twice much IPC and cheaper. :)
Posted on Reply
#113
ratirt
nemesis.ie... and twice the cores too. ;)
Yeah twice the cores and 5 times more expensive. wonder if they made sandy 6-8 core how would that perform :) Shrink it to the size of Sky and get more cores and bench :) man you would be surprised :)
Posted on Reply
#114
nemesis.ie
Indeed. Let's hope that Zen will not be 5x the price but reasonably priced (under $500). ;)
Posted on Reply
#115
Khanivore
nemesis.ieIndeed. Let's hope that Zen will not be 5x the price but reasonably priced (under $500). ;)
I hope so too. This could well be AMD's last chance to compete and gain market share in the mid-to-high-end range. Intel has ruled and milked us for too long. :rolleyes::laugh:
Posted on Reply
#116
ratirt
nemesis.ieIndeed. Let's hope that Zen will not be 5x the price but reasonably priced (under $500). ;)
KhanivoreI hope so too. This could well be AMD's last chance to compete and gain market share in the mid-to-high-end range. Intel has ruled and milked us for too long. :rolleyes::laugh:
Well it is said it will cost under 300$ so it is way less than Intel's "so-called" new gen
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