Intel Core i9-11900K Desktop Processor 8 Cores up to 5.3 GHz Unlocked LGA1200 (Intel 500 Series & Select 400 Series Chipset) 125W
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Availability:
Only 2 left in stock, order soon!
Arrives
Nov 10 – Nov 14
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Style: i9-11900K
Features
- Compatible with Intel 500 series & select Intel 400 series chipset based motherboards
- Intel Turbo Boost Max Technology 3.0 Support
- Intel Optane Memory Support
- PCIe Gen 4.0 Support
- No thermal solution included
Description
11th Gen Intel® Core™ i9-11900K unlocked desktop processor. Featuring Intel® Turbo Boost Max Technology 3.0 and PCIe Gen 4.0 support, unlocked 11th Gen Intel® Core™ desktop processors are optimized for enthusiast gamers and serious creators and help deliver high performance overclocking for an added boost. Thermal solution NOT included in the box. Compatible with 500 series & select 400 series chipset based motherboards. Refer to motherboard vendor for compatiblity details. 125W.
Brand: Intel
CPU Manufacturer: Intel
CPU Model: Intel Core i9
CPU Speed: 3.5 GHz
CPU Socket: LGA 1200
Processor: 3.5 GHz intel_core_i9
Brand: Intel
Series: Core i9
Item model number: BX8070811900K
Item Weight: 2.39 ounces
Product Dimensions: 5.98 x 5 x 2.68 inches
Item Dimensions LxWxH: 5.98 x 5 x 2.68 inches
Processor Brand: Intel
Number of Processors: 8
Manufacturer: Intel
Date First Available: March 17, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Nov 10 – Nov 14
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: i9-11900K
Upgraded from a 9900k and had a hotter running PC. Couldn't figure it out at first and found myself checking my AIO, reapplying thermal paste, checking settings, etc. After research I was able to discover that given it a slight undervolt helps. What ended up helping even better and easier was ticking down the performance in the Performance Menu. In those option by simply ticking down the processor to 99% my temps went down to 55 for most of my games from initially running at average 80-85. This tuning comes without a noticeable hit on FPS except while playing "Squad" (a single core use cpu intensive game). With that game I do lose at least 10 fps by having the processor at 99%. This is not that big of a deal as I can easily tick it up to 100% for Squad and just put up with the 75-80 temps! Happy that I can at least play most of my games at a good temp while gaining good performance by this upgrade!
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Reviewed in the United States on March 10, 2024 by Steve
Style: i9-11900K
when i upgraded my desktop i decided to go intel core i9 this time. all my previous build was a 6th generation core i7 6700k. it ran fine but it wasnt up to running windows 11. so an upgrade was in order. besides, my old board was starting to fail. i originally bought a 10th generation core i9 10 core but that cpu was junk. there wasnt enough PCI-e Lanes to support my drives and usb devices. this is a limitation of 10th generation CPUs not a limitation on the board. my video card (RTX 3070) took up most of the available PCI-e lanes which took out most of my drives. so i went to the 11th generation i9 8 core instead. very happy with it. it solved all my PCI-e lane issues. i am able to run all my devices and drives. the cpu clocks at 5.3ghz stable i have water cooling installed. i see zero problems with this chip. its fast, its stable im plenty happy with the upgrade. the board is a MSI MEG z590 ACE Gold. i have 64gb DDR4 3200.
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Reviewed in the United States on October 16, 2022 by Burn0u7
Style: i9-11900K
This was Intel's top line CPU in the 11th generation; it used the LGA-1200 socket which was only minimally different from the LGA-1151 socket (1200 pins vs. 1151 pins). The motherboards for the LGA-1200 required only small changes in production spec, and the coolers made for the 1151 chips work perfectly on the LGA-1200. By contrast, the 12th generation, using the LGA-1700 socket, required an extensive redesign of motherboards, and the coolers that got adapted over from the LGA 1151/1200 didn't really work properly on the 12th and 13 generation Intel CPUs. This i9-11900K will pull about 170 watts through the socket at factory overclock 100%, and that's right on the limit of safe operation for the vast majority of air or liquid coolers on the market today.
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Reviewed in the United States on October 3, 2023 by mlm
Style: i9-11900K
The seller did an amazing job. The item came even sooner than expected. The bad news is that I installed it in my previously flawless running machine. The reason I upgraded from my current i910900k is that I wanted to enable the NVME.2 4.0 on my SSD. I already had the drive and a Z590 motherboard so why not right? I put the new i9 11900k In and it started and enabled the 4.0 on my NVME. Yay right! Literally with in a couple minutes I received a watchdog timeout error. (This is caused by CPU cores failing to communicate with each other.) I called Intel tech support who was less than help full. I updated all drivers and still didn't work. I did notice my CPU temp was running over 100c. Odd because I have the best nactura CPU cooler they sell. I decided to upgrade to a liquid CPU cooler and that brought my CPU temp down to around 85c. That still didn't fix the time out errors. I put my old CPU back and all is happy. I ended up sending the i9 11900k back but at least my i9 10900k is nice and cool even at 45% overclock. LOL
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Reviewed in the United States on July 24, 2021 by William Snyder
Style: i9-11900K
I am not a gamer by a long shot, but wanted a powerful Intel based CPU riding on an 'Asus Maximus Extreme Motherboard' along with a Asus RTX 4090 GPU. I purchased (1) of the most graphic intensive AAA game titles and a few CPU intensive military strategy simulation games known for their heavy demand for CPU physics computations. My Core i9-11900K which I purchased in 2022 performed admirably well on all accounts. Absolutely no complaints. Some reports say that the i9-11900K runs hot and sometimes above the 100°C mark? But that was not really the case with me or the many others when they installed a high quality 360mm or above sized AIO water cooler. My very demanding combat simulation (Command: Modern Operations) never presented a heating issue with the i9-11900K and with my over 80-hours of heavy duty play. For good measure my Cosmos C700M EATX case also includes a total of (7) additional independent Noctua cooling fans, which of course benefits the cooling within the massive interior of the enclosure. Overall I am extremely satisfied with INTEL in general and recommend the i9-11900K and or its newer siblings now as a very good buy!
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Reviewed in the United States on April 8, 2024 by Tom Sunday
Style: i9-11900K
It’s good my girl still has hers after a few years but she deff needs an upgrade now for more demanding games and applications
Reviewed in the United States on June 9, 2025 by illumaVision
Style: i9-11900K
The CPU handles well however it failed after 2 years but through the warranty I was able to get a replacement.
Reviewed in the United States on August 9, 2024 by Thomas Worley
Style: i9-11900K
Ran great, till I fried it! Hot this CPU back in 2021, was still running fine until I messed with some wires i should not have and fried it. My gaming pc runs great on it and I've had no issues, hence why I ordered a replacement for the one I ruined.
Reviewed in the United States on February 28, 2025 by LtTora