Intel Core i7-4790K Devil’s Canyon Processor Review

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SiSoftware Sandra 2014 SP2a

Sisoftware Sandra 2011 SP5

The Sisoft Sandra 2014 SP2a benchmark utility measures pretty much all of your system components, but we’ll be using it to focus on memory and CPU performance!

sandra-mem

Results: The Intel Core i7-3770K Ivy Bridge processor had 27.58GB/s of memory bandwidth with our Corsair Dominator Platinum 2133MHz memory kit and CL9 timings. This is a solid number, but the Intel Core i7-4770K had 27.91GB/s of memory bandwidth and the Core i7-4790K came in at 28.00 GB/s with the same exact kit. There isn’t much difference between Haswell and Ivy Bridge architectures when it comes to the memory controller as you can see from this bandwidth test.

sandra-multi

Results: The Intel Core i7-4770K and Core i7-4790K CPUs are significantly faster than the Intel Core i7-3770K in the Multi-Media test due to the the new Intel AVX2 instruction set available on the Haswell processors. The Intel Core i7-4790K was able to really outperform the Core i7-4770K due to the having a 4.4GHz boost speed versus just 3.9GHz. This gave the Core i7-4790K a nice 12.3% performance boost over the Core i7-4770K.

 sandra-crypto

Results: All the new mainstream and high-end desktop processors support AES-NI and have pretty good Cryptographic Bandwidth numbers. The Core i7-4790K scored 7.24 GB/s versus the 6.80 GB/s found on the Core i7-4770K.

sandra-arith

Results: In the Sandra 2014 SP2a CPU Arithmetic Benchmark the Intel Core i7-47790K was found to be 20.8% faster than the Core i7-3770K processor and 12.3% faster than the Core i7-4770K.

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  • She-Ra

    Basically devil’s canyon has the same overclocking scaling as the ivy bridge 3770K in both the I5 and I7 processors. Two generations news with a few more bells and whistles but the same OC cap as ivy. If you consider it comes in at 4ghz but only jumps to 4.5-4.7 which is the same as the 4770K. Essentially a chip that comes mildly overclocked which can be achieved in the 4770K with the exact same OC’d results. Obviously, that is the chip because of those added bells and whistles. The 22nm process is showing that it’s dated. Intel really needs some new silicon or something so they can hit 5ghz. PC gamers need the speed. They should also add a feature that uses internal graphics in tandem with PCI Express graphics cards. It’s really a simple solution adding integrated graphics. I am not talking about quick sync. I simply give intel ideas to revive their PC gaming market.

  • klepp0906

    Clock for clock they’re the exact same chip. So unless your convinced you can get an extra few hundred MHz out of a 4790 save your money.

    For me running a delidded watercooled haSwell at 4700mhz I can’t imagine (based on all results I’ve seen thus far) being able to attain a high enough overclock to make it worthwhile.

    • CharlesAnderson

      I can – it’s better to run a stock Devil’s Canyon at 4700 MHz and keep your warranty intact.

  • Kat

    I think the Intel Deviled Egg would be a better name…

  • anon

    I’d like to see this and the 4770k compared when they’re both overclocked as high as possible. “High as possible” depends on the sample of course, but I still think it’s more useful then comparing with stock speeds, since the 4790k’s is higher but at the expense of greater power draw and heat.

    • Thomas Dameron

      except that OCing a CPU as high as possible reduces its life to a few months and doesn’t give any useful information

      • anon

        I meant as high as reasonably achievable.

      • klepp0906

        It does?

      • dj3hac

        I ran an Intel E8500 @ 3.6ghz for years no problem at all, it’s still running in a dedicated server. It’s be going 24/7 at that speed for 6 or 7 years now.

  • Steven Kean

    Tempting upgrade from a 3570K…

  • Will Beams

    What the heck? 71c under load with a Corsair H105 Closed Loop Water Cooler??? Then how hot does the bloody thing get with an after market air cooler, let alone the stock cooler? Something doesn’t seem to be right here…

    • Nathan Kirsch

      Haswell has always been regarded as a fairly hot processor, so nothing out of the ordinary there! I actually thought that was low and was extremely happy with that. I used the latest version of Intel XTU and screen shots are in the review and everything was done more than once and was consistent.

    • Vinny

      they were using the integrated graphics that why it ran hotter….if you use a dedicated card it wouldn’t run so hot then 🙂

    • name

      I have the 4790k with an h110 and mine doesn’t go over 60C on a full load.

      • klepp0906

        Load it with IBT then and not Aida or something foo foo :p

        (Assuming your overclocked)

  • Coach

    Great review. I was very curious/anxious to read this. It’s selling at $279 at MicroCenter. VERY tempting! I want to see how the Broadwell’s do, but I’m sure they’re price point will be much higher.

  • OJ

    Hopefully some of the 4790ks do manage to hit 5GHz otherwise the extra features such as the smoothing caps and the thermal interface don’t achieve much. Although the the improvements lead me to assume that some 4790k chips should be more stable when clocked over 4.5Ghz.

    • Thomas Dameron

      umm, 500 MHz a core is actually a pretty good boost, especially considering that the 4770k was pretty shaky at anything over 4.3 GHz

      • Joe Joejoe

        And compared to AMD, a 500Mhz boost is more like a 4×1.5Ghz boost, especially when it’s on 4 cores rather than 8.

    • ricksanchez1

      I was disappointed they didn’t push the chip until it burned. If they ran all their tests, and more come along in a week, a $350 chip can’t be sacrificed for the point of testing?