Customer Ratings & Reviews

Best single thread performance, bar none. Competitive multi-core performance. Competitively priced. Performs well in games and everything else too. Only thing tasks where it's slower than the competition is in long multi-threaded runs, but even then it's about 5-10% at most deficit, which is not much compared to the 20% lead in everything else. I myself went from a Zen2 based Ryzen Threadripper 3960X to this CPU, which is a multi-thread downgrade of about 25% but a single thread upgrade by 50+%. Even more in apps where Zen architecture was holding back performance. Most drastic use case was StarCraft II minimum FPS went from ~45 FPS to ~150 FPS and averages went from ~90 FPS to ~350 FPS all using the same GPU, RTX 3090.

The i9 12900K represents Intel’s return to top notch gaming performance but also fires back at AMD in multi-threaded tasks and applications. Intel used a hybrid approach of 8 high performance (8P) and 8 efficiency (8E) cores instead of trying to catch up with AMD’s 12 and 16 performance cores. For most people gaming with high end GPUs beyond 1080p, you won’t see much if any difference compared to AMD or even recent Intel chips in games, but it is interesting to see Intel pushing higher FPS in CPU limited situations. Beyond Intel’s return to competitiveness with Ryzen, LGA1700 and the Z690 chipset bring some of the biggest platform upgrades we’ve seen in nearly a decade. DDR5, PCIE5.0, WiFi 6E, 2.5/5/10gbe NIC options, 3-5 m.2 SSD slots, and Thunderbolt 4.0 connections are all commonplace on these boards. While not all of these are super useful today, this platform is built to last. For me the Nvme slots for Direct Storage in newer games is going to be a game changer for load times and streaming textures in open world games. WiFi 6E will also give you higher than gigabit speeds if your internet supports it. One important thing to note is you will need Windows 11 to maximize the performance of this CPU as the Windows task scheduler will help determine which core to run each thread on depending on the application or service. I was lucky to get this CPU on launch day around 11:30am EST from Bestbuy who had the best price I’ve seen on it. They delivered it today next day and I’ll be building my system Sunday when my ROG Max Hero arrives. DDR5 memory is hard to come by and none of the faster kits seem to be available yet. Still, I’m excited to pair up my 3090 with this new rig. The 12900K has the coolest packaging I’ve seen yet on a CPU, and while I don’t need the onboard GPU, I bought the K just for that fake silicon wafer packaging. :)

OMG this thing is fast, I have some extremely fast machines in my arsenals an this one is the fastest. It outperforms my dual Xeon machine hands down in almost every way. I've got mine hooked up with a RTX 3090 as well and in gaming it's blowing every game out of the water. I use it for work building virtual machines regularly for deployment onto servers an this paired with 4x Samsung 980Pro's in Raid0 is the definition of fast, Read Write hovering around 28GBps, yes you read that correct, GigaBytes Per Second. My local storage on this beast is around the same speed as most people's ramdisk. I also have a full 10G network connected to it an it breezes through any remote task I throw at it. Also water cooled it as it does get a tad toasty an it doesn't come with a stock cooler so if your gonna buy this thing keep that in mind.

It's hard for me to decide who I could recommend this to. To put it simply, this CPU is an absolute savage. It's insanely fast, literary crashes everything, but by doing so, it likes to suck a lot of power and push out a lot of heat. Now it is that bad? As bad as some people say the heat and power consumption is? Not at all! Here is what a lot of reviewers don't tell you. While this top of the line i9 12900K can demand a lot of power from your system, it only does that on very intense loads. In normal day-to-day operation, it's actually very energy efficient. In my normal daily use, it uses around 45W on average, with up to 60W spikes from time to time. A bit more in games. Not a big deal. With the temperatures, you have to be a bit more mindful. As long as you have a very good cooler, you don't have to worry about it, but it doesn't have to be anything extreme either. I use a Corsair H100i Caperlix 240mm. A lot of people say 240 is not enough, but it's been fine, and I have my fans set on silent. With regular use it operated at around 40-50C, on idle hovers around 30C, in games it's around 65-75C, and in heavier loads, like video encoding, it reached around 80-85C. The only time I can get it to 99C is in a multicore Cinebench R23 benchmark, about halfway through. If never reached 100C and never throttled on me. I'm fine with that. So do you need this CPU? Well, I still think for the most people, the i7 12700K is more than enough. You would get an almost identical performance for a much lower price, plus lower temps. If you're like me however, and just want the top of the line in your system, this i9 is a monster. One of the quickest out there, period. The best gaming processor, period. Definitely gives you some bragging rights and your friends will be jealous, no questions about it. Plus the box will look very cool on your shelf. So just decide, are you a sensible person who wants a great performance at a great price? Then the 12700K is the one for you. Or, are you a geek with too much money burning a whole in your pocket? Then get the 12900K, and you will not be disappointed! Good luck friends.

Works great, and it is fast! It was also a lot cheaper than the other brands!

Very quick destroys my 5950x in single threaded by a ridiculous amount. Stock beats my liquid nitrogen scores on other cpus. I’m running ddr4 cheap msi board I got for $200 since ddr5 is out of stock everywhere. Gaming is super smooth high minimum fps runs 45c while gaming and idles at room temp using optimus waterblock.

Price matched for a an excellent deal. Great processor although I’m not really convinced on the whole “E” cores thing. I’m a content creator and 3D artist by trade. The performance is great with the E cores enabled but also disabled. I would much prefer to see a proper 16 core processor like my 5950x (which despite ALL of the online reviews saying intel has stolen the crown and d tester the 5950x- I can personally attest that my 5950x both performs slightly faster on every single benchmark and in every creative application. For context I have 3 5950x processors and 3 12900k processors for work so it’s not a matter of silicon lottery.) All in all it’s not a bad processor by any means, it just runs very hot if you don’t know how to tune it correctly and has significant differences between different batches. I would recommend it- but to give the best recommendation I’d say buy the 12700k or now that AMD has completely slashed their prices, get a 5900x or 5950x. All in all in todays market there are no “bad” cpus. *make sure to pair with appropriate; -cooling solution (280mm-420mm water) or large air coolers such as the nh-d15 etc. -nvme ssd (pcie gen 4 qlc w/flash memory) aka -980 pro gen 4x4 Sea gate firecuda 530* specifically Crucial P5 PLUS, not the regular Or a variety of others from wd or Sabrent. -motherboard selection is crucial on this cpu as it’s power draw on demand can be 300w and toast some poorly designed vrms on budget boards. A vrm with proper heat sinking or even active cooling should be mandatory(this stinks because the prices are egregious for 12th gen mobos) -ram doesn’t matter (for the time being) between ddr4 or 5 just as long as you buy a nice kit of ddr4 with tight timings and decent mega transfers- Ex. Team groups cl14 3600mhz ddr4 with Samsung memory modules it’s fantastic- also crucials ballistix (now discontinued) it always a good choice with their micron chips. *ddr4 and ddr5 are not cross compatible so choose your motherboard wisely. A good budget (ish) pick would be a gigabyte z690 Aorus pro ddr4 or the pro ax elite. Msi also has some very attractively priced z690 options aswell. Hope this helped!!!!

This processor is pulling out all the stops—speedy boot times. Getting multiple tasks done at one time is a sinch. The video games I play run flawlessly. iCUE H170i Elite Capellix Liquid CPU Cooler keeps it under 55 degrees Celcius.

Intel is back to greatness! Performance is incredible. Paired this with 64GB of DDR5 RAM and an RTX3080Ti and it can handle pretty much anything with ease. If you're planning on overclocking, make sure you have a good cooling system because this can get hot.

Intel has done it again. Taking the gaming crown back from AMD with flying colors. I upgraded from a 10700k to this beast and it smashed my old chip by double in multitasking. No regrets moving to the LGA1700 at all. paired with a good 360 AIO to tame the temperatures under load, never see over 56C while gaming.

Good, first thing i did replaced thr i5 12600k with this, then messed around with Asus Bios with its AI overclock. Pushed the motherboard limit with ASUS AI was able to overclock the P cores to 5.4 instead of 5.1 and E cores to 4.3 instead 4.1. This is using Corsair i150 360 Cooler, an Corsair Vengeance 5200mhz C40. Now is it faster then the 10th 10850k, no the downfall is the gpu being on the cpu. As shown in pictures, so even tells you with gpu on the cpu. The gpu is terrible for gaming, good for just everyday surfing the web with having to brake the bank on getting a video card.

Bought this chip with the intention to multitask remotely and have a lot of programs running in the background. This chip is very powerful. I can have all office apps running and 3rd party remote apps running and working at the same time and the cpu bearly loads 4% usage. Which is insane. And when I'm playing games with everything running. The cpu bearly loads to 59% and temperatures of 49°. And it doesnt even break a sweat. My 2013 chip. Would run slow without games running at 60+% usage and lag/stutter bad as i would switch apps.

Cpu is a big upgrade for me from my AMD Ryzen 5 2600 x. Runs super smooth and my FPS is up there.

[Employee of bestbuy] Really great price and runs well with 4090 Founders Editions.

This thing is an absolute beast. Super easy to over clock. I have mine with the p cores set to 3 @ 55 3@53 and 2 @52 And the e cores all at 41 I and destroying thread rippers on cinebench I am running a 360 mm rad with 3 120mm fans only so if I added 3 more to do push pull I cant imagine how much faster this CPU could go. Intel thank you for finally getting back in the game and putting out something so amazing. BTW make sure you have a good PSU this thing is power hungry.

This processor crushes everything I throw at it, really remarkable. It beats out the 5950x in single core operations and is perfect for gaming.

My experience with the Intel Core i9 12900K has been great, is a very capable cpu and I havent had any problems with it. I have been overclocking it on Cinebench. With a stock Corsair Aio I managed to almost match an AMD thread Ripper.

This think put in incredible work. I can preform multiple tasks on two different moniters and this processor dosent go over 40% use. Its awesome.

Noticed a huge upgrade over my previous CPU (i7 9700k). The last CPU couldn't feed the 3090 with enough frames and now I can easily say, the 3090 is the bottleneck in the system.

I havent done anything that would require the full potential for the i9 but for what I have been using it for its kept very cool temps and overall performs amazing. I hope in the future ill be able to use it to the maximum potential.