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Intel Core i7-7700K Kaby Lake Processor Review

CPU Benchmarks – Ashes of the Singularity, Cinebench, Handbrake, WPrime and WinRAR


Ashes of the Singularity

Ashes of the Singularity’s dedicated CPU benchmark can take advantage of those extra cores and poses a problem for even the most expensive options on the market such as the i7-6950X. At stock values, the i7-7700K records a commendable result which defeats its predecessor and has a good lead over the 6-core i7-5820K. Once overclocked to 5.1GHz, the frame-rate increases by a decent amount and allows the CPU to stay within touching distance of the i7-5960X running at the default turbo frequency. This is a significantly better result than I expected, although the substantial gains may be down to a margin of error.

ashes

Cinebench R15

Prior to overclocking, the Intel i7-7700K falls just short of a 1000 multi-threaded score and remains well above the i7-6700K thanks to the enhanced frequency. This also applies to the single-threaded data and it’s clear that the faster Turbo clock is paying dividends. Interestingly, the stock i7-7700K is able to outperform a heavily overclocked i7-4770K which indicates the progress made over time. Setting the CPU to a mammoth 5.1GHz has a dramatic effect on the single-threaded performance which easily eclipses the rest of the field. On another note, the multi-threaded capabilities at 5,1GHz are greater than a stock 6-core i7-5820K.

cine

Handbrake

The processor exhibits a small performance boost in video tasks when converting a 4K MP4 video file versus the previous generation offering. Furthermore, the FPS value isn’t too far behind the 6-core 5820K and I’d argue that the 4.5GHz boost helps to close the gap. The overclocked frequency is really beneficial during the conversion task and begins to rival higher core products with a lower base frequency.

hand

WPrime

Rather surprisingly, the Intel i7-7700K reports a quicker pi calculation time than an overclocked i7-6700K during the 1024M benchmark. Saying that, the Skylake option fares better when working out the equation to fewer digits. Additionally, the i7-7700K running at 4.5GHz comprehensively beats an overclocked i7-4770K and isn’t too far away from the i7-5820K. After the overclock was applied, the 1024M calculation time dropped below 150 seconds and surpassed the i7-5820K. This is a great showing given the benchmark’s preference for processors with additional threads.

pi

WinRAR

Here we can see the processor at stock values offers a very similar compression time to the previous flagship and struggles to contend with Intel’s 6-core alternative. As expected, the hefty overclock helps to narrow the gap, although it’s still some way off if you compare the different frequencies.

winrar

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22 Comments

    1. Hi, thank you so much. I wasn’t able to overclock the iGPU, but I’ll note down the frequency in the next day or so when I do some additional testing.

  1. Great review man.. So 7700K is just a higher clocked 6700K? My current Z170 mobo is dead and i’m considering to upgrade to Kaby Lake.. but seeing this review hold me back. Slightly off topic, but can i use my 6700K with Z270 motherboard? Just curious.. otherwise i’ll buy another Z170.. Thanks

    1. If you want a future proof build then buy a Z270… pure logic here, it will support intel Xpoint Optane SSDs and dimms.

        1. Hum, google it, it takes 5 seconds, it will be released after the CES 2017 the 5th of January, in fact some online retailers already got the Z270 mobos and 7700Ks ready ^^

    2. Thank you :D Yep, no real improvements outside of a frequency boost. The 6700K and 7700K both use the same LGA1151 socket so you’ll have no issues doing that!

  2. Thank you very much for this. Interesting how the 7700k outperforms a 6700k OC’d 4.8ghz on Ashes of the Singularity. Can you please test Starcraft 2? That game is CPU limited and really shows the strength of a CPU (may it be architecture or IPC or speeds) and I’m really interested how the 7700k perform against the 6700k in that game clock for clock. Thank you.

  3. “AMD’s Zen architecture is just around the corner and looks promising” Are you kidding me? What the hell does AMD have to do with this? You are referring to a product that is not available, and will be a first iteration of a new technology that will need weeks (if not months) of vetting before I will risk my hard earned dollars. For All practical purposes, AMD is dead until it can PROVE it has a product that I should take a look at. Until then….I am completely ignoring them.

    1. “What the hell does AMD have to do with this”, really? They are Intel’s direct competitor, their zen processors do actually look promising and they’ll be coming out shortly. How much vetting do processors need according to you? It’s not like AMD is unexperienced in terms of making processors, it’s just a (very) new architecture. It is completely logical to suggest waiting to see what AMD does before making a purchasing decision.

    2. It has a lot to do with this, because IF the Zen single core performance is within 10-15% of the current Intel offerings, there is virtually no reason to get an Intel CPU, and it becomes well worth getting a much cheaper 4C/8T Zen or a 6 or 8 core version of the Zen for the same price and have those extra cores in case you need them.

      For gaming, 6 and 8 core CPU’s add a high cost but essentially no value performance wise. Oh, ok… Ashes of the Singularity shows a little bit of performance increase but it costs a lot to build the system. IMO, it isn’t worth purchasing a 6 or 8 core Intel System at this time for gaming.

      Here is the point:
      If Zen is close to Core i7 7700k, then why wouldn’t I get the 8 core Zen that could be priced the same as the 7700k, AND add the extra cores “for free”?

      Or, if I don’t need 6 or 8 cores, why not get the 4C/8T i7 version of the Zen for a most likely much cheaper price?

      It really depends on how good Zen is as to whether these Intel prices are worth it or not.

      1. You’re making a huge presumption that pricing will be low, It’s much more likely that pricing will not be far off Broadwell e pricing, AMD are repeatedly referring to there 8 core alongside the Broadwell 6 core so I’m expecting similar pricing but we’ll see.

  4. I’m a big Intel fan but their insistence to put progress into neutral as often as they can get away with is just crazy. The 7700k could have easily had far more tangible improvements but because the market wasn’t forcing them to compete they just don’t bother. Intel has provided AMD with a generous opportunity here with Zen. I hope rigorous competition gets the innovation train back on the track.

  5. As a Haswell user, I will not have to upgrade my CPU for the next 3 years. Intel is so lazy now. Now AMD has an opportunity to strike back with Zen. I can definitely give a try for a Zen 6 core CPU if it matches with a 6700K. I bet those performance gains are mainly due to clock speed jump, but no IPC improvement. The biggest advantage here is overclocking head room and the new media engine which will useful for multimedia users. BTW, is 5GHZ sustainable for daily using, I mean with a good liquid cooler?

    Nice Review !

    1. I’m also on Haswell. I didn’t think I was going to be able to hold onto the same CPU for so long, but I am also planning on holding out for a long time.

  6. Core i5 2500k here (OC’ed to 4.5Ghz).

    Debating whether to go for a 7700k or possibly even a Zen, though I use my PC for gaming, so I don’t think Zen gives me anything special, probably detracts since it is rumored to be slower single core.

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