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Intel Core i9 (12th Gen) i9-12900KS Gaming Desktop Processor with Integrated Graphics and Hexadeca-core (16 Core) 2.50 GHz

Based on 371 reviews
Condition: Used - Like New
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$414.15
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Availability: Only 1 left in stock, order soon!
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Arrives Thursday, Oct 29
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At a glance

Condition
Used - Like New
Style
i9-12900KS
Model
BX8071512900KS
Weight
0.45 g
CPU Manufacturer
Intel
CPU Model
Core i9
CPU Speed
2.5 GHz
Warranty
Information Not Available

Features 4

  • Built for the Next Generation of Gaming. Game and multitask without compromise powered by Intels performance hybrid architecture on an unlocked processor.
  • Integrated Intel UHD 770 Graphics
  • Compatible with Intel 600 series and 700 series chipset-based motherboards
  • 14 MB L2 + 30 MB L3 cache memory provides excellent hit rate in short access time enabling improved system performance

Description

Intel Core i9 (12th Gen) i9-12900KS Hexadeca-core (16 Core) 2.50 GHz Processor, 30 MB L3 Cache, 14 MB L2 Cache, 64-bit Processing, 5.50 GHz Overclocking Speed, Socket LGA-1700, UHD Graphics 770 Graphics, 150 W, 24 ThreadsChipset Compatibility: Find compatible motherboards by accessing the Intel® Product Compatibility Tool, click Desktop and Workstation Processors , and choose the processor to find available compatible motherboards and other related information.

Specs 24

Brand Intel
CPU Manufacturer Intel
CPU Model Core i9
CPU Speed 2.5 GHz
CPU Socket Socket LGA-1700
Processor Series Core i9
Processor Speed 2.5 GHz
Processor Socket Socket LGA-1700

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Top Amazon Reviews


Overkill for me and Most.
Style: i9-12900KS
This started a new PC build for me when it was on sale for $320. I haven't built a PC since 2007, so it has changed a bit since then. This thing runs hot at full load. Watch gamers nexus on YouTube. It will pull a solid 250+ watts running cinebench. I'm using an Arctic Freezer 2 420mm with a thermal grizzly contact frame and kryonaut, and it will load up to 80 degrees almost instantly without throttling but drop immediately to 25-30 degrees when the load stops. This is with ambient at 22 degrees. This thing is brutally fast, though, and in reality, outside of load testing it, I have rarely seen it go over 30% usage. The more recent i5 and i7 processors can more or less be equal in most use cases. i5 13/14600, i7 13/14700. This processor is still top-tier and will be for a few years to come. 12th gen i-series processors were a game-changer, the 13th-gen improved on them a bit with more e-cores, and the 14th-gen is looking like a stop-gap to the next big thing. You won't be disappointed; make sure to keep it cool. ... show more
Reviewed in the United States on May 6, 2024 by Matthew K Shook

Best cpu hands down
Style: i9-12900KS
Fastest cpu just a few years ago and still in the top of the class, it's only 5% slower single core than a 13900k with no microcode/oxidation problem. Runs way hotter than my i5 haha but with a good 360 AIO it runs nice and cool. So happy I have good integrated graphics for back up if anything happens to my GPU and can still light game. Its perfectly compatible with my z690 mobo just swap and play with added contact plate a must if you dare. ... show more
Reviewed in the United States on November 23, 2025 by scott

Cool running CPU...
Style: i9-12900KS
I was skeptical purchasing this CPU. I read topics claiming it gets hot. That's BULL!!! If you know how to build, able to put the right parts together, may take some research to make sound decisions, this is one strong processor. I game, watch media, do design work, and video editing, and do extreme multitasking, and have not gotten a hiccup. People are ready to put down a product without doing their homework to make it run like it should, screw the benchmarks and skepticism. Build it right and the rest will speak for itself. I believe in high quality and this CPU stands up to it all in cool smooth running, and seamless tasking. I waited to make sure I'd speak up for it, and I stand behind it 100%. Great CPU. ... show more
Reviewed in the United States on May 17, 2025 by G-Man

The last, great Intel Core i9 standing.
Style: i9-12900KS
In a world of AMD 7000- and 9000-series X3D and non-X3D CPUs, I just now chose to build a PC based on this Intel Core i9-12900KS. The logical question is "Why?" No good answer, other than part nostalgia and part brand loyalty: Intel has been a reliable partner in this computer building hobby for a long time. That said, previous PCs of mine were built using AMDs Phenom II Black and FX-8370 CPUs, so I don't consider myself a 'fan boy' of either brand. So why? Like buying an Alfa Romeo when a Toyota Camry is cheaper, more efficient, and more reliable, you buy the Alfa because you want it. And in this case, you buy this CPU because it's the last, great Core i9 standing and will turbo boost Pcores to 5.5 GHz at stock Intel power settings and without MCE. I love it already. ... show more
Reviewed in the United States on January 22, 2025 by Fly Navy

Downgraded from 14900k
Style: i9-12900KS
My 14900k kept crashing games and was unstable right out of the box. Downgraded to this and it's solid at least and saves me about $300. The FPS difference for my purposes (gaming) is very minimal (<10FPS) from all my tests.. and my computer actually works. Also got 6800MT/S RAM to work with this if you're in the same boat. Definitely going AMD on my next build after this headache though. ... show more
Reviewed in the United States on August 3, 2024 by Justin

Cooking with fire...
Style: i9-12900KS
I came from an AMD 2990WX build that while it was good and stable, always had some quirks about it that just annoyed the crap out of me at best. While this probably can't multithread to the same degree, it does represent a lot of power and speed. 5.2GHz across 8 cores / 16 threads, on an air cooler and I'm not touching anything for OC...it's great as it is. Even the 'slow' cores clock in upwards of 4GHz, which the TR tapped out at best with 4.2 and that was only for a couple cores-worth. This one on air, does back off that max clock not soon afterwards; but I also have this in a 4u rack mounted case, with 4 chassis fans; vs the previous build which was on a 360 radiator/AIO, and had 13 system fans; but I was going for a rather ridiculous build with that vs this build I'm going for subtle/sleeper. That this system runs as fast as it does, with as little fan noise, on air...is something rather amazing. ... show more
Reviewed in the United States on May 22, 2022 by jenksdrummer

DO NOT BUY, Died in 1 month
Style: i9-12900KS
Shortly after use my pc started to blue screen randomly, eventually it got so bad windows wasn't even able to boot from bios without instantly crashing. Thought perhaps it was my own user error, however after changing literally every other component in my pc I finally concluded that the processor was bad, and when I bought a new i7 and tried it out everything was back to working proper. So, now I'm out 400, and I'm past the return period, complete waste of money, GET AN I7 INSTEAD, THIS THING IS GARBAGE. ... show more
Reviewed in the United States on July 2, 2024 by Ali-a-Sachez

Over-clockable!!!
Style: i9-12900KS
This beast of a CPU arrived on time and was well packaged. I bought this for a new gaming monster of a computer. Pros: Easy to mount. My CPU with little to no over clocking, runs at 3.5Ghz. With some fine tuning, it can run stability at 5.7Ghz on all cores with Efficiency cores running at 3.8Ghz. Awesome!!! Cons: Pricey considering the 13th generation is only $120 more dollars than this at the time of purchase. Ran into some issues with the CPU being recognized, but with a BIOS update, fixed. No other problems that i can find. If I find any I will update this review. Overall I think this CPU is an awesome one. It has definitely has made my build a beast of a machine!! I recommend this to anyone that doesn’t want to upgrade to Intels 13th generation CPUs!! ... show more
Reviewed in the United States on December 3, 2022 by ~DM~
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