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Customer Ratings & Reviews

Your price for this item is $439.99

Customer reviews

Rating 4.9 out of 5 stars with 452 reviews

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Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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98%would recommend to a friend

Customers are saying

Customers find value in the overclocking capabilities, performance, and price of the Core i9-9900K. They appreciate the ease of installation and the noticeable upgrade it provides over previous models. While some users have concerns about its temperature and cost, many agree that it is a powerful and fast CPU.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 9 Showing 161-180 of 452 reviews
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Great deal!

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best gaming club out there! Also fully capable of most anything. Can’t beat the sale price and quick free shipping!

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    best cpu

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    needed an upgrade for gaming from my i5 9600k this was def worth the money perfectly paired with my 2070 super

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 4 out of 5 stars

    Overkill CPU

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Honestly speaking the cpu is overkill unless you need the multitasking power I mostly always have a game running and a video playing and a couple chats running so I sort of need it I mostly just bought it cause it was a good price and I was kind of due for an upgrade would only recommend if you have the pockets or get it discounted otherwise look for 8700k or 9700k

    No, I would not recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Gamer

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Amazing it’s handling every game I throw at it 165fps highest setting available Destiny 2 World of Warcraft Monster hunter Borderlands Series

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    You get what you pay for

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great performance for the price. Big step up over the i5 that had been installed. Very happy with this purchase

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello there. Thank you for your kind review! We are pleased to know that the installation process of this 9Th Generation Intel® Core™ i9-9900K Processor went smooth, and at the same time we hope you can continue to take good advantage of the lightning speeds, amazing graphics quality and easy overclocking capabilities of this processor! Happy gaming! Thank you for being a loyal Intel Customer!

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Processor upgrade

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    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    A well needed upgrade for my desktop from a i5-8600k ... everything is running better after installing the new processor

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello Lildog006. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Best 1151 cpu

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fast single core action, and cheaper now that 10th gen is out (better deal) and 10th gen isn't that much better. Get this cpu if you're going intel!

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Big power

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best CPU i have ever bought, powerfull to run any big cpu demanding games like it was nothing, or run multiple games if thsts the thing too.

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Best CPU

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    Posted . Owned for 11 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Well, this i9 is everything I expected and more. Super fast and reliable. Make my rendering projects with ease. Great for running engineering programs as well.

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Amazing CPU

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Amazing CPU, extremely fast and reliable. Very simple to install but it is very scary to install.

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    i9 9900k

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Fast, and I can overclock all cores to 5ghz stable. runs a little hot but I cool this processor with water, highly recommended.

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello there. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. It also powers up and customizes your gaming rig with up to 40 platform PCIe lanes giving you outstanding flexibility. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Decent upgrade over 8700k

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works like a dream. This is still usable in my Z370 Gigabyte Gaming 7 motherboard. I haven't even had to delid it or anything!

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello there. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. It also powers up and customizes your gaming rig with up to 40 platform PCIe lanes giving you outstanding flexibility. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Awesome Processor.

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Finally replaced my core I7 that I built years ago and this proc is fast. No issues and it has been able to handle everything I have thrown at it.

    I would recommend this to a friend
  • Pros mentioned:
    Overclocking

    Rated 5 out of 5 stars

    SILICON LOTTERY WITH THIS BAD BOY

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great CPU. I was able to overclock it without any issues and its easily cooled. I think I hit the silicon lottery on this one

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello there. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. It also powers up and customizes your gaming rig with up to 40 platform PCIe lanes giving you outstanding flexibility. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Speedy Processor

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    A great upgrade. Easy to see that this processor is much quicker than my old one. Easy to change out and works great so far.

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello DanC. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. It also powers up and customizes your gaming rig with up to 40 platform PCIe lanes giving you outstanding flexibility. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Powerful CPU

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Performs very will without overclocking. Currently use with programs such as: adobe premier adobe after effect Maya 3Ds max Blenders Some Games.

    I would recommend this to a friend
  • Pros mentioned:
    Processor speed

    Rated 4 out of 5 stars

    Great but AMD has beaten it handily

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    If you want the best go with AMD. The Ryzen 9 5xxx line are better performers for the money. If you need Intel Quicksync support then you are kind of stuck with Intel. This cpu performs really well and I have no issues with it but comparatively it falls behind especially in tasks that don't use Quicksync.

    I would recommend this to a friend
    • Brand response from Intel team
      Posted .

      Hello there. We are so happy to know that you are having a great experience with our 9th Generation Intel® Core™ i9-9900K Processor. That's amazing! We agree that this model delivers a new performance, gaming on a whole new level, and creativity without limits. It also powers up and customizes your gaming rig with up to 40 platform PCIe lanes giving you outstanding flexibility. Thank you for choosing Intel.

  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Best you can get right now

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best gaming CPU alive right now. Will only be beat by it 10th gen replacement. If you aim for 5GHz+, AMD can't come close. 9900k can't be beat

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Solid processor

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Performing just as expected. Coming from a 7700K and has already withstood an overtemp due to AIO pump failure and holds a 5.1ghz OC on all cores at around 1.368v with no complaints so far. Plan on letting it run on game boost for the rest of its life on a MSI Z390 MPG Gaming Pro Carbon. Would have liked it to have been $100 cheaper but oh well. Seems that waiting on the 10th gens wasn't worth it so I jumped on this one.

    I would recommend this to a friend
  • Pros mentioned:
    Performance

    Rated 5 out of 5 stars

    Fast CPU

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great performance for price, but you need to also buy a heatsink which Best Buy should suggest when purchasing.

    I would recommend this to a friend