Intel Core i7-8700 Review: Stock Cooler Falls Flat

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We expected to see more variation from Intel's stock cooler during our Cinebench multi-core test. Given its relatively short run time and our open-air bench, however, we didn't see much difference between our two configurations. Interestingly, the stock Core i7-8700K and -8700 performed almost identically.

Similar trends emerged through the other threaded rendering tasks. While Core i7-8700's stock heat sink and fan imposed slightly lower performance than the liquid cooler in certain cases, we still think the -8700 is a solid alternative to the pricier flagship if you don't plan to overclock and cooling inside your case is sufficient.

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LAME is a single-threaded workload that typically illustrates the advantage of higher clock rates and IPC throughput. Case in point: Core i7-7700K and -7700 were separated by a larger delta than the two Coffee Lake-based Core i7s, which we know feature similar single-core Turbo Boost bins.

Our threaded compression and decompression tests work directly from system memory, removing storage throughput from the equation. These workloads are especially intensive. Yet, we didn't record any surprising variations between the -8700 cooled by Intel's stock thermal solution and the Corsair all-in-one. Both of our HandBrake benchmarks, on the other hand, exploit AVX instruction, generate lots of heat, and illustrate a wider performance gap between the two configurations.

Surprisingly, y-cruncher, a single- and multi-threaded program that computes pi using AVX instructions, didn't expose any variation between the two coolers we tested atop Core i7-8700.


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Paul Alcorn
Paul Alcorn
Managing Editor: News and Emerging Tech

Paul Alcorn is the Managing Editor: News and Emerging Tech for Tom's Hardware US. He also writes news and reviews on CPUs, storage, and enterprise hardware.

40 Comments Comment from the forums
  • AgentLozen
    This CPU doesn't seem to know who it wants to target. Users who are budget constrained would get better value out of the i5 8400. Demanding gamers and power users should be looking at the i7 8700K or Ryzen 2700X.

    In what context does it make sense to buy this CPU?
    Reply
  • Lutfij
    The stock cooler looks like it was given as an April Fool's joke...campaign.
    Reply
  • pensive69
    oh get real!
    stock cooling is always less than prime.
    Reply
  • RyanTodd1
    I brought the processor and so far i havent even begun to hit its limits. I've primarily used it for high end gaming such as the Witcher 3. Very good chip and not too costly either - considering its the new gen. Very happy, only thing is, i wish i have 50 quid more to get the 8700k! Oh well!
    Reply
  • AgentLozen
    RyanTodd1 said:
    Very happy, only thing is, i wish i have 50 quid more to get the 8700k!

    I wouldn't sweat it, RyanTodd1. Your graphics card will be the gaming bottleneck before the CPU is.

    When I got my first computer in 1997, it came with a Pentium II @ 233MHz. There were 266Mhz and 300Mhz models available at the time that I wished I had instead. Looking back 21 years later, I realized that it never made a difference which one I had. I think you'll feel the same way about your i7 8700.
    Reply
  • Fluffy_Hedgehog
    21087259 said:
    oh get real!
    stock cooling is always less than prime.

    *cough*
    https://www.amd.com/system/files/AM4-Wraith-Cooler-Lineup-1920x631.jpg
    http://www.relaxedtech.com/reviews/amd/wraith-max-and-wraith-spire-cooler/2
    *cough*

    you were saying? … yes those are copper plates on those coolers for the 65 and up lineup, yes they do have led and yes thost are actual copper heatpipes on the cooler that comes with the 2700x.

    I know a lot of aftermarket coolers that look and perform a hell of a lot worse than what amd puts in the box.

    it is only intel that puts half an ounce of third grade aluminium on top of their cpus (because they are too cheap to provide anything worthwhile I suppose …) and expects people to purchase actual cooling after the fact raising the total price of a system significantly.
    Reply
  • Ilya__
    21087183 said:
    This CPU doesn't seem to know who it wants to target. Users who are budget constrained would get better value out of the i5 8400. Demanding gamers and power users should be looking at the i7 8700K or Ryzen 2700X.

    In what context does it make sense to buy this CPU?

    I don't really agree. The difference between 8700 and 8700k is almost $100 CAD and yet the performance difference at default clocks is very small. So if I am building a machine for someone that will never overclock, save them some money and/or get the 8700 and get a good cooler instead.
    Reply
  • justin.m.beauvais
    It looks to me that the circumstances where the 8700 overwhelms its cooler are few and far between. For someone looking for great gaming performance, but might not have all the cash needed for an 8700K and cooler, they could get the 8700, not give up much performance, and just get a better cooler later when workloads catch up.

    The benchmarks paint a pretty nice picture of the 8700. I believe you, Tom's, when you say that the cooler can be overwhelmed, but your benchmarks don't really seem to indicate much of a loss when/if it is happening, especially in gaming.

    Honestly though, why don't they differentiate the designation. Intel should have the 8700 at stock 8700K speeds, but just have the K unlocked. It isn't exactly deserving of the 8700 designation if it is clocked 500MHz lower. Just another thing Intel does that irks me.
    Reply
  • RyanTodd1
    21087440 said:
    RyanTodd1 said:
    Very happy, only thing is, i wish i have 50 quid more to get the 8700k!

    I wouldn't sweat it, RyanTodd1. Your graphics card will be the gaming bottleneck before the CPU is.

    When I got my first computer in 1997, it came with a Pentium II @ 233MHz. There were 266Mhz and 300Mhz models available at the time that I wished I had instead. Looking back 21 years later, I realized that it never made a difference which one I had. I think you'll feel the same way about your i7 8700.

    Hopefully this is the case, although tech has come a lot further since 1997! I wasnt even born then! :)

    Reply
  • george_osborne
    For only ~$50 more I will always go with the unlocked processor. Better base frequency, better turbo and the ability to overclock (if so desired).
    Reply