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Intel Core i3-8100 CPU Review

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Core i5-8400 demonstrates the benefit of six cores in a threaded game, leading Intel's Core i3-8100 by a significant margin. Still, the Core i3-8100 wields its four cores to great effect, beating the price-comparable Ryzen models by ~13 FPS and sliding past the pricier Ryzen 5s, even after we overclock them.

Again, the Core i3-7100 tumbles down the chart, falling 24 FPS behind its Coffee Lake-based successor. That's a ~39% generational speed-up in this title.

Far Cry Primal

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Far Cry Primal's Dunia Engine 2 responds well to high clock rates and IPC throughput. However, it also seems to run better with simultaneous multi-threading disabled. That plays well to the Core i5/i3 and Ryzen 3 models, which don't feature SMT support.

As expected, Core i3-8100 leaps over its previous-generation counterpart, but lags the Core i3-8350K.

Even after we lock frequencies to the same 3.9 GHz, our overclocked Ryzen 5 1400 trails the 4C/8T Ryzen 5 1500X. The tuned 1400 wasn't stable with its memory set to 3200 MT/s. Instead, we could only achieve 2933 MT/s, which does affect gaming performance. We suspect the Ryzen 5 1400's 8MB of L3 cache, which is half of what the 1500X includes, has an impact on some workloads.

Rise of the Tomb Raider

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Rise of the Tomb Raider
 is a recurrent thorn in AMD's side. Recent patches fixed the most glaring issues, but Intel processors still handily outperform their Ryzen competition. The Core i3-7100 again shows how significantly the entry-level Kaby Lake-based CPUs fall behind today's Coffee Lake models.

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MORE: Intel & AMD Processor Hierarchy

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  • Dark Lord of Tech
    Great CPU for the $$$!
    Reply
  • shrapnel_indie
    It's impressive.... and makes a harder sell on the Ryzen 1200 and 1300X.
    Reply
  • InvalidError
    Still missing affordable motherboards...
    Reply
  • JQB45
    When are the lower cost "B" and I assume "H" series motherboards supposed to arrive?
    Reply
  • MCMunroe
    Why does the little green button to buy the product always have a wildly higher price than the assumptions made in the article?

    Just a glaring sign that the articles value comparison is off, in real life.
    Reply
  • marcelo_vidal
    I don't see the point of this review? This get the UPDATE ? Bios UPDATE Microcode Update ? Where is the meltdown TRAIN ?
    Reply
  • JQB45
    Tesetilaro - Passmark benchmark results comparing the i3-8100, i5-4570 and the i5-3570.

    https://www.cpubenchmark.net/compare.php?cmp=3103&cmp=1896&cmp=827
    Reply
  • ghettogamer
    $100 upwards for a motherboard ,g4560 is still the budget king!
    Reply
  • John Philips
    Does it comes with the Meltdown and Spectre improvements?
    Reply
  • Martell1977
    I have to agree, knowing that these reviews can take some time, I'm curious (as the others) if these tests include the S&M fixes?

    The performance loss might change the results here significantly. I know it's a lot of work, but I think we need new benchmarks for pretty much all Intel's new models. The current numbers are no longer accurate. Maybe retest some of AMD's to see if there is much, if any effect on their performance as well.
    Reply