Intel 5820K vs 6700K CPU Showdown
Linus Tech Tips
·Linus Tech Tips
·2016-05-06
·
1,399 words · ~6 min read
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for a while now Intel's been providing us with Enthusiast grade X Series
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platforms starting with x58 and since then rolling out x79 and x99 and
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although most of you probably know that these chipsets support beefy 6 and 8
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core processors and tons of PCI Express Lanes what exactly are you getting in
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terms of performance by going for an X chipset and with the price of ddr4
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dropping is it more feasible for the average PC Builder these days also like
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today we have a showdown between the Haswell e core i7 5820k with six cores
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and 12 threads running on an x99 chipset and the new Sky Lake core
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i76700k with four cores and eight threads running on a zed 170 chipset
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although the 5820k isn't the most expensive processor compatible with the
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x99 chipset we picked it to see how a processor One Step Up from Intel's
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highest and mainstream offering would fair in addition to the extra processing
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cores x99 also offers more PCI Express
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Lanes than the mainstream option like the Z 170 chipset you get 20 lanes with
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the 6700k but 28 Lanes with the 5820k
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and the more full fat x99 CPUs namely
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the 5930k and the 5960x give you a total of
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40 PCIe Lanes making x99 an interesting
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option if you're planning to run three or four graphics cards but what about
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those of us who don't have just huge stacks of cash to drop on an SLI or
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Crossfire setup and are just curious about moving moving to higher-end
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chipsets well we checked prices on New Egg for the entire x99 and Zed 170
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platforms including motherboards CPUs and ddr4 RAM at the time we shot this
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video you could expect to pay about $30 more for a 5820k than a 6700k and about
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75 more for an x99 motherboard than a
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z170 so you're looking at around $1
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100ish Delta total average cost for an
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x99 platform using a 5820k comes out to
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about $745 assuming you'll pay around $15 for
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16 GB of ddr4 RAM which has come down in
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price quite a bit since this release one thing to keep in mind is that although
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you can use quad Channel RAM on the x99
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platform dual channel will actually work just fine so you should be able to save
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a few bucks by buying just two sticks of memory if you can live without quad
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Channel setup so what exactly do you get for that extra 100 bucks to find out we
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ran a few numbers for both gaming and non-gaming benchmarks on our test bench
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we used a pair of ASUS motherboards the x99 deluxe and the z170 deluxe and kept
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all other components constant across both platforms namely 16 GB of Corsair
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Vengeance DDR RAM running at
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2,133 MHz a reference NVIDIA GTX
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980ti and a 1 TB Samsung 850 Pro SSD a
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Corsair h100i GTX CPU Cooler and a
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Corsair ax1200i power supply we ran both
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of our CPUs and graphics cards at stock speeds jumping right into it we started
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out with a couple synthetic benchmarks to test multicore performance although
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the skyl 6700k performed respectively in both Cen and 7zip the 5820k with its six
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cores outclassed it by a pretty comfortable margin winning by about 15%
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in cinebench and about 23% in szip our
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single-threaded benchmarks though told a different story we use the dolphin
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Benchmark which is actually part of a Nintendo Wii Emulator but never mind
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that we used it to retrace a 3D image here the Skylake processor shows its
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improved single core performance as it beats out the more expensive Haswell e
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chip by over 2 minutes we also ran web expert a benchmark that tests both HTML
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5 and JavaScript performance on the latest version of Google Chrome the
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6700k one again beating out the 5820k by
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about 19 % in this more single core intensive task gaming wise we looked at
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a couple titles that we knew about from past testing you can see our corer
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gaming video up here we knew that they would benefit from a higher-end CPU
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first up we used City skylines which we ran at 1080p with everything maxed out
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here the 6700k won by a full 9 FPS even
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with its fewer total cores moving all over to Total War atila however we also
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ran at 1080p with extreme settings but this time around the 582k by a full 5
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FPS we also wanted to check out a couple other popular titles just to see if
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there was much of a difference in those Graphics intensive ones namely Tomb
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Raider and Crisis 3 at 1080p the settings were cranked and it was hard to
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distinguish these two chips apart although the 5820k W by two or 3 FPS in
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both cases it wasn't a difference I'd call significant as both processors got
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over 125 FPS in Tomb Raider and around
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100 FPS in Crisis 3 so what's our
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conclusion for starters it's pretty clear that the extra cores you get with
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the x99 platform will help with things like encoding video and photo editing
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and other heavy number crunching like tasks like say file compression or data
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encryption but gaming results can vary
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quite a bit depending on what's in your steam or origin library or whatever else
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and the four core Skylake processors have a bit of a lead and more common
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single-threaded tasks like web browsing and although you can overclock a 58 82k
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to match the 4 GHz stock speed of the 6700k other tests have suggested that
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Skylake is still Superior with respected instructions per clock or IPC meaning
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that the Zed 170 looks like the way to go for most of you if what you're going
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to be doing on your PC is web browsing and gaming even so thanks in part to the
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greater availability of ddr4 memory it looks more affordable and practical than
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ever before to set up an Enthusiast grade platform if you'll be taking
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advantage of its extra cores and P C express lanes also don't forget that
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we're seeing newer features natively supported by the Zed 170 such as USB 3.1
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starting to pop up on newer x99 boards as well so you won't necessarily be
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missing out on latest gen Tech and be left feeling like the CPUs are always
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