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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 4 Showing 61-80 of 452 reviews
  • Pros mentioned:
    Processor speed

    Rated 5 out of 5 stars

    Great deal.

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I think for the price point of this CPU vs the performance is an awesome deal right now I got this as a build when prices came down for a new system that didn't need to be on the bleeding edge. It has been working great with no issues with a mild overclock. Keeps up with my i9-10900k without trying all that hard. Great for anyone looking to build a new system on a tight budget while wanting to still have enough power to get some gaming in.

    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

    Great for gaming and streaming

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

    At first I was a little skeptical because it came in a square box and not the huge geometric crystal casing. But, it is the same processor. I love it, it is super fast! I am a twitch streamer, the processor is able to manage my stream plus whatever game I am playing. I do recommend that when installing the processor you make sure that your pc can handle it. If you have outdated parts the processor won't really make a difference in speed.

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

    Rated 5 out of 5 stars

    Amazing CPU - water cool it tho!

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

    Upgraded from the I7-7600k to this beast, and WOW. I have it over clocked to 5.3GHz with the thermaltake Floe Dx premium AIO and it is blazingly fast. Windows starts up before I can get seated, apps open and run seamlessly. If you're of waiting for the next gen of Intel CPUs - don't. Get this one, excellent price, 8 cores, 16 threads, hyperthreading, everything you need to blow the competition away while gaming and then log off and do some Adobe Photoshop.

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

    Rated 5 out of 5 stars

    Great processor

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

    Paired with Asus Maximus XI motherboard. Overclocked to 5.1 Ghz. Great processor for gaming and workstation

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

    I've had my new pc built without a gpu due to gpu shortages, but my pc performs AMAZING without it. You don't run games as good as if you had a gpu, but even without the gpu it's great!! I highly recommend this cpu if you can get it on sale. I personally got it on sale, and I used the money I saved to buy ram. It's so worth it!

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

    Rated 5 out of 5 stars

    Great processor

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

    I almost went with an i7, I am glad that I didn't. I know that it is more expensive but it is worth it!

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

    Rated 5 out of 5 stars

    Wow

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

    This item was an excellent purchase for the value and performance. Stable and easy to overclock.

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

    Rated 5 out of 5 stars

    Strong performance

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

    I don’t overclock my processors, I like to run them at their normal clock speed. You can overclock it but I don’t see the need. I find this CPU works great for my gaming and work applications. I work with very large MS Access and Excel files and play games on Steam. The faster turbo mode does make my CPU cooler work a little harder but I find the chip temperature always stay well within limits, I am very happy with it.

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

    Rated 5 out of 5 stars

    Pushing the limits!!

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

    CPU I9-9900k GPU Evga RTX 2080 TI FTW 3 Ultra Aorus Master Z390 Corsair i150 AIO Corsair Vengeance RGB 3200 16GB Dell S2719DGF (1440p) Pushing 130+ FPS average in all AAA FPS titles with CPU temps hardly getting above 40 C. I contemplated going with Ryzen, but glad I didn’t. I would have been disappointed.

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

    Rated 5 out of 5 stars

    Easy overclocking

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

    Stable overclocked at over 5.0mhz stays cool and performs great.

    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

    Excellent processor if you have the money.

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

    This cpu is amazing! Coming from an i5 9600k, people say that the upgrade is not worth it, you get basically the same FPS while gaming, but that’s not true. Frame time problems with the i5 9600k would cause games to stutter and for me when it seemed most important. Render times were cut way down. All core 5ghz no problem. It’s a monster! If you are on a budget go with Ryzen 7 lineup. In gaming it doesn’t compare though.

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

    Rated 5 out of 5 stars

    Crazy expensive, but the best consumer processor

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

    i9 9900k is a beast. Handles any game i play with zero issues. Only con is the price. this thing is expensive

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

    Rated 5 out of 5 stars

    great cpu

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

    its good one of the best gaming cpus. just need a good cooler. noctua d15 works for me.

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

    Rated 5 out of 5 stars

    Strong LGA 1151 Chip & Good Overclocking Abilities

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I've been using this for nearly a year now, and I'm really pleased with the purchase. While it isn't the latest socket version, it's something of a bargain and fits the motherboard I had purchased first. I'm not big into overclocking, but I have pushed this pretty hard (with an AIO liquid cooler), and I've been impressed with the speed. I'm an Intel fan and highly recommend.

    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:
    Performance

    Rated 5 out of 5 stars

    Wow where to start!

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

    First off, this CPU is one of the best I've ever seen let alone used in my entire life (for 1511 socket). It runs extremely well with all programs, keeps up with every task, and multiple at once due to hyperthreading, and is absolutely incredible for gaming. No GPU on the market (other than MAYBE the RTX 3090 overclocked) will be bottle capped by this bad boy. Runs extremely well even out of box

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

    Rated 5 out of 5 stars

    Incredible

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

    Super fast, reliable but definitely on the expensive side. My only complaint is that its definitely hard to keep cool. Hovers around 140°F under moderate load. (240mm liquid cooling system) Over clocked to 5.5GHz for a few minutes before I had to shut down PC because the CPU temp was around 175°F. Will definitely be looking into a 360mm water cooling system.

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

    Rated 5 out of 5 stars

    Great cpu

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

    Plays any games I want and temperatures are great too.

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

      Hello Dony. 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:
    Overclocking, Processor speed

    Rated 5 out of 5 stars

    My final CPU upgrade

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

    Great upgrade! Overclocks pretty well too and goes great with my RTX 2080 Ti

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use, Processor speed

    Rated 5 out of 5 stars

    Intel i9

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

    great processor. super fast and easy to install. best buy had a great price.

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

    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.

    Great improvement over my old i5. Installation was easy & by adding a new MB my experience was just what I expected. This was part of a package that Best Buy had on sale, unfortunately when I picked it up I was charges individually and not the package price. There was no receipt given since it was an online purchase & I was surprised when I got my bill.

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

      Hello Mike. 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.