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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 19 Showing 361-380 of 452 reviews
  • Rated 5 out of 5 stars

    Great CPU!!!

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

    I’m pretty happy with my new upgrade. Windows is running super fast by using the game boot mode. Got it over clocked to 5.20 gigahertz with out any heating problems. Temp is staying around 36 to 24 when idle. I’m very happy with it. I totally recommend this CPU.

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

      Hello John. 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:
    Performance

    Rated 4 out of 5 stars

    Core

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

    The product itself is great, kiddo finished building his pc and was very happy. Best buys delivery date was wrong by about 2.5 weeks.

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

    All you need is cooling...

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

    I had read a bunch of reviews saying this guy gets hot and it may be the case if its not cooling rite.... i use a 120x2 all in one cooler/radiator and asus ai overclocking and keep it consistently 30-40c running at 4.8-5.0mhz.... great processor buddy even picked on up and he loves it too.

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

    Rated 4 out of 5 stars

    Fantastic CPU

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

    Of course the Core i9 would be a great processor. However, with the new R0 stepping, I wish I would have waited. Other than that it performs like a dream!

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

    Great processor

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

    8 cores 16 threads. Does exactly what it says. It’s a good workhorse and I am able to run multiple tasks and game at the same time on my z390e motherboard. I highly recommend this processor to keep up with games and applications so far.

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

    Rated 4 out of 5 stars

    She runs fast

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

    Great cpu and runs fast can take anything thrown at it. It does get a little hot now and then so get a great cooler with it.

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

    9900k beast!!

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

    So I upgraded from a 8th gen 8700 non k and straight out the box is a beast, you could tell the diffrent. The cpu has handle anything that I have throw at it. When is overclocked it become a monster! Highly recommended!!

    I would recommend this to a friend
  • Cons mentioned:
    Price

    Rated 1 out of 5 stars

    Best in the world, but limited

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great processor, I rarely used its maximum capacity, I was disappointed to read Intel's policy on the warranty and know that even though I am a processor in the "K" line, I cannot overclock the processor or memories, otherwise I will lose the warranty. which seems very strange, because I paid a higher price for being an unlocked product for overclocking, and so intel announces it, in this case it is not worth picking up with the "K" line. I found this very stupid on the part of intel, because they themselves developed the chips that allow overclocking of ram memory, but if I use I lose the warranty of the processor, you can use memories with frequency of only 2133Hz or you can say goodbye to your warranty the same as having a ferrari with a popular car engine, it has power but cannot be used, I really hope that Intel changes its warranty policy.

    No, I would not recommend this to a friend
  • Cons mentioned:
    Price

    Rated 4 out of 5 stars

    Price is too high to be a good value.

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

    No issues with product. Works as intended. Unfortunately the price is too high to be a good value.

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

    Rated 4 out of 5 stars

    Overkill for gaming alone

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

    Overkill for gaming alone. Streaming to Twitch makes use of extra power. 9700k will clock higher

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

    Too much power

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

    Literally too much for a PC. This is completely unnecessary but I love it. Be it barely uses 30% of its usage when you doing everything including of work station and gaming. Thus purchase I've made to upgrade my PC.

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

    Fast !

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

    Amazing cpu Best bang for the bucks. For audio work, I think this is a good balance between core speed and count When you pair with good cpu cooler and good case, you can make a powerful silent pc

    I would recommend this to a friend
  • Cons mentioned:
    Price

    Rated 4 out of 5 stars

    Great processor

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

    Great processor still expensive compared to AMD offerings but non the less a great product.

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

    Excellent Quality

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

    Recieved it within 2 weeks well packed nice packaging, works excellent. Easy assemble, price is high could be more reasonable but the quality of the product is 5/5. So far so good no complaints.

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

    Power!!!!

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

    If you intend on getting this processor, I highly recommend buying a liquid cooling solution to keep this at minimal temp. It runs extremely hot at normal frequency. It has power!

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

    Great for gamers

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

    I play fortnite, and this boosted my FPS and works GREAT! The i9 9900K is great because I can stream off of it too! 5 stars all the way!

    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.

  • Rated 5 out of 5 stars

    Great products

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

    Works great, even with a power/value ratio not as favorable as the new Ryzen 3900, I would still go this route. Note, at stock configs, your boat frequency will only ever hit 4.68 though.

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

    Great Fast CPU card for gamers

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

    idk what the fuss what about with this card if you do the HR and look at the bench marks this card holds with the best of those 2,000 CPU chips this is a must buy

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

    Awesome processor

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

    Packaging is cool, but it's hard to open. I was afraid that I would break the CPU when I was trying to open the package.

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

    Rated 4 out of 5 stars

    Overclokcking troubles

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

    I am have some trouble overclocking to 5.0ghz but other than that it’s awesome

    I would recommend this to a friend