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Customer Ratings & Reviews

Your price for this item is $399.99

Customer reviews

Rating 4.9 out of 5 stars with 18 reviews

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94%
would recommend
to a friend

Customers are saying

Customers are positive about the Core™ i7-5820K 3.3GHz Processor's overclocking capabilities and speed. They describe it as "overclocking really nicely" and "blazing fast."

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 1 Showing 1-18 of 18 reviews
  • Rated 5 out of 5 stars

    Great Processor

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

    Built a new computer using my old Alienware Chassis and existing ATX OEM 1000 watt power supply. Purchased Gigabyte X99 Gaming 5P motherboard, Intel i7-5820K processor, Seaagte 1TB internal SATA hybrid hard drive, LG 16x Blue Ray disk drive, 4x Crucial 16GB DDR4-2133 memory cards, CPU Fan LGA 2011, XFX AMD Radeon R9 390 8GB graphics card, Windows 8.1 64 bit operating system, and Logitech MK710 Wireless keyboard and mouse($2020.15). Everything works perfectly.

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

    Rated 5 out of 5 stars

    A really awesome 6 core processor

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

    If you're looking for the latest and greatest LGA 2011-3 that offers the best bang for your buck, this is your processor. Sure, the 5830k has a few more PCI lanes.. but who's going 4 way SLI? If you're doing more than 2 way SLI, this isn't for you. There just aren't enough lanes. The 5960x is an absolute beast, but it's also 3x the price... This processor is blazing fast, make no mistakes. Plus, it overclocks REALLY nicely. I'm using a Corsair H100i GTX and can get this to a stable 4.2ghz at a nice and cool 40c

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

    Rated 5 out of 5 stars

    Great step into the x99 family

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

    Great processor, got it on sale as an entry into the X99 chipset. Having the much needed ram capacity with 8 slots is a huge step up from previous CPU and chipset. Easy to overclock and extremely fast multi-threading processing.

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

    Rated 5 out of 5 stars

    Fast Proc for home computer

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

    Great and fast easy to install proc for my home computer

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

    Rated 5 out of 5 stars

    Great for overclocking with six core

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

    Skylake dissapoints, but Haswell still amazing. Overclocked it to 4.2 GHz easy. Very easy to overclock if you know what you are doing, otherwise see a few videos on youtube and read( very important) before overclocking.

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

    Had to return it - BUMMER!

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

    Realized that this processor won't sit comfortably on my mother board, I had to return it. The one I want/need (i5 3770k) is $$$. Can't afford it!

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

    Rated 5 out of 5 stars

    Best Bang-for-the-Buck among the Broadwell Chips

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

    Love these chips. Easily over-clocking and a much better value than the 5930K which only gives you an additional 200mhz for over $200 more. The X99 Chipset is IMO superior to the Z170/Skylake and is far more stable and reliable. Best choice for custom builds today.

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

    Great Product

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

    Great Product, highly recommended for anyone looking to spruce up their build.

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

    Rated 5 out of 5 stars

    Great processor

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

    fast! used with asus x99-a and corsair H100i cooler.

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

    Perfect

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

    I loved it, it was a really good product. I highly recommened

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

    6 core cpu

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

    intel classic reliability and performance nothing less.

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

    Rated 5 out of 5 stars

    Got what I expected

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

    Good processor, glad Best Buy carried it. They price matched and all is good in the world. Glad I used Best Buy to purchase this.

    I would recommend this to a friend
  • Rated 3 out of 5 stars

    It's all right for the price

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

    Don't over lock this CPU it gets really slow, I have a pretty decent cooling system

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

    Rated 5 out of 5 stars

    Good choice for a X99 setup

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

    Nothing much to say beside that if your on a budget then it's a no brainer.

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

    Rated 5 out of 5 stars

    Great product!

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

    Great product. Would recommend any gamer to purchase. Very affordable.

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

    Best in her class

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

    Not as expensive and there are better ones but this does the job quite feasibly.

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

    Rated 5 out of 5 stars

    Strong!and cheap

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

    Strong!and cheap! Just buy one! IT reall good! love love love

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

    Great CPU

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

    I got this CPU on the recommendation of the guy that was helping me build my new gaming computer. The 6/12 cores are great. I have been running multiple clients (4+) of online games and have not noticed any reduction in performance

    I would recommend this to a friend
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