Intel 6700K "Skylake" CPU
Linus Tech Tips
·Linus Tech Tips
·2016-05-06
·
1,407 words · ~7 min read
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finally our review of Intel's new consumer grade Flagship Skylake CPU and
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Zed 170 chipset is here that's right I
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said Flagship which probably seems a little strange considering Intel's
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previous topend quad core code named Broadwell haven't even been on the
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market for 3 months on the desktop side and although Intel has gained a pretty
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big Market advantage over AMD partially due to how regularly they release CPUs
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and chipsets the past few Processor architectures have merely felt like
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incremental upgrades to a lot of people with many gamers and enthusiasts like me
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still happily rocking their Sandy Bridge chips from 2011 2600k for the freaking
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win so what does Skylake bring to the table and is it the next big thing like
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the video if you want to see us check out a 3D printer called the Ultram Maker
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2 extended
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the Logitech g303 features lightweight design an advanced Optical sensor with
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Delta zero technology for precise tracking and RGB lighting to match your
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setup click now to learn more let's start out with a look at the CPU itself
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this is a core i7 6700 K and just like
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all of its other K series i7s it features four cores four hyperthreads
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for a total of eight threads and an unlock multiplier for overclocking out
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of the box you'll get a 4.0 GHz clock
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with the turbo boost frequency of 4.2 GHz now if this doesn't sound like a big
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Improvement right away that's cuz Intel's last gen 4790k ran at the same
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base clock speed but while the CPU may not have incredibly eye popping specs at
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first glance the Skylight platform does come with quite a few improvements we
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haven't yet seen on mainstream chipsets for starters ddr4 support is finally
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available for cheaper motherboards with Sky supporting up to
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2133 MHz ddr4 RAM gone to the days where
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you had to pay $1,000 for a six core CPU
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and straight baller board to just to try out some memory it really doesn't make
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much of a difference anyways check this video out for more on the differences of
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ddr4 and DDR3 sky like also comes with
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revision 3.0 of Intel's Direct Media interface or DMI which is basically the
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thing that connects your CPU to the chipset and many of your computer's
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other components and peripherals it's twice as fast as DMI 2.0 on Haswell and
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other earlier processors and given how dmi's four lanes carry 20 lanes of PCI
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Express bandwidth to and from the CPU the extra speed should help if you
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happen to be running a whole bunch of high-end stuff like big external storage
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highspeed PCI ssds or just downloading and streaming tons of stuff through a
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big internet pipe skyl also includes some serious improvements on the
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graphics side as well now I know that many of you like me are going to be
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running Skylake with a discreet graph card but remember Sky series is going to
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include lower-end chips like core i3s
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and Pentium so if you are using the integrated GPU maybe inside an htpc or
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something you'll be able to enjoy the full support of HC codc the successor to
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h.264 which is newly supported in Windows 10 Skylake also includes native
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support for Thunderbolt 3.0 which has 5 gab per second transfer speed which
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means it is also fast enough to Output 4K 60 HZ video over HDMI or 5K 60 HZ
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video over DisplayPort very cool so how
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well does this thing overclock well first Intel's had a few issues with
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several overclocked CPUs both ivybridge and Haswell had some well publicized
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issues with excessive heat so much so in the case of Haswell that Intel's refresh
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of Haswell Devil's Canyon had improved thermal interface material as a major
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selling point so Intel's tried to reduce heat output on Skylake by doing two
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different things things one was improve power efficiency and two was move the
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voltage regulator off the CPU and back onto the motherboard to reduce the
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amount of crap that's actually heating up the CPU package so even though the
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smaller 14 nanometer process could otherwise result in higher overall
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temperatures these changes should result in a relatively easy overclock on a
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wider range of motherboards including cheaper ones that don't have the fancy 8
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or 12 phase power vrms and early tests
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show that it actually won't be nearly as much of a variance between individual
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chips as well which is nice you won't have to hunt for certain bins anymore
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hopefully it's benchmarking time for our test bench we used the new ASUS z170
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Deluxe motherboard with our core i76700k along with 16 GB of ddr4 2400
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MHz RAM a Samsung 850 Pro 1 terb SSD a
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reference GTX 980 TI and a Corsair 100i
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GTX liquid cooling cooler we took this setup and put it up against Devil's
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Canyon core i7 4790k running on an as
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Seuss Sabertooth z97 Mark I also with 16
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GB of 2400 MHz RAM albeit DDR3 instead
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of ddr4 and kept the rest of the components the same to get an Apples to
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Apples comparison or as close as we could given that the two CPUs are
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different and use different types of memory we overclocked both chips to a
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stable 4.7 GHz on 1.4 vol we Ed PC Mark
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8 to test General performance and cinebench along with szip to give our
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test bench a CPU bound workload our
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overclocked skylike chip showed slight improvements over Devil's Canyon perhaps
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not enough to notice in everyday uh situations our gaming benchmarks told
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somewhat of a similar story with virtually no difference in Far Cry 4 and
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City skylines but we did see about a 7 FPS Improvement in Total War Atilla
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which is pretty CPU sensitive title that also really pushed our gtx980 TI at Max
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settings so although Skylake isn't a massive Improvement clock for clock over
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the previous generation only about 4% in PC Mark 8 is it still a compelling
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upgrade well if you're running an older chipset looking for a more consistently
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solid overclocking experience on mainstream motherboards or want a
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specific feature set like Thunderbolt 3.0 support or massive bandwidth for
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things like your expensive NVMe drives or Skylake is is going to be certainly
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worth a look but if you're not a super serial overclocker or you're a gamer
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with a newer platform like Sandy or Ivory Bridge it might make more sense to
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