Intel Core i9-12900K

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General information

The Intel Core i9-12900K is a flagship 16-core, 24-thread processor from Intel’s 12th Gen Alder Lake family, combining 8 Performance cores and 8 Efficient cores for exceptional gaming and productivity speed. With high boost clocks, a large cache, and support for both DDR4 and DDR5 memory, it offers strong platform flexibility depending on the motherboard. Designed for the LGA1700 socket with PCIe 5.0 support, the 12900K excels in demanding workloads like video editing, 3D rendering, and high-refresh-rate gaming. With an unlocked multiplier, it also provides overclocking headroom for enthusiasts who want maximum performance.

Specifications

CPU

Model
Core i9 12900K
Socket
LGA1700
Cores / Threads
16 / 24
Clock
3200 – 5200 MHz
Cache
L2 14336 KB , L3 30720 KB
TDP
125 W
Process
10 nm
Integrated graphics
Intel UHD Graphics 770

No detailed specifications available for this product.

Customer Reviews

4.4

Based on 19 reviews

5 ★
11
4 ★
5
3 ★
2
2 ★
1
1 ★
0

Vísa Johnsdóttir

★★★★★

Gaming has been super smooth since upgrading. Frame rates are strong and consistent, and CPU-heavy games feel better with fewer dips and stutters. I also like how well it handles background tasks—Discord, browser tabs, recording, updates—without affecting gameplay. It’s stable through long sessions and I haven’t had any crashes. Just make sure you have decent cooling because it can run hot under load. Once that’s covered, it’s an excellent gaming CPU.

Matěj Kopecký

★★★★☆

Great choice for photo/video editing overall. Playback and scrubbing are noticeably smoother and exports are faster, especially on longer projects. It also handles multitasking well, so I can keep working while renders run in the background. The only reason I’m giving 4 stars is heat and power—this chip boosts hard and can run hot unless you have a strong cooler and good airflow. After dialing in fan curves, it’s been stable and quiet enough. Performance is excellent; it just benefits from a well-planned build.

Mia Saarela

★★★★☆

Very strong gaming performance, especially if you’re aiming for high refresh rates or playing CPU-heavy titles. It keeps frame pacing smooth and doesn’t get bogged down with background apps running. I’m giving 4 stars instead of 5 mainly because it can be power-hungry and needs good cooling to stay quiet. Also, depending on pricing, it can feel like you’re paying for performance you may not fully use if you only game. Still, it’s a great CPU and I’d recommend it if you want a high-end gaming build.

Eva Holm

★★★★★

Excellent for software development. Builds are fast, IDEs stay responsive, and running containers, local services, and a lot of browser tabs at the same time is effortless. I’ve had no stability issues—long sessions are consistent and reliable, which matters more than raw benchmarks for work. It’s also great for multitasking, so background tasks don’t slow down my workflow. Cooling and power settings matter, but with a sensible setup it’s a powerhouse. Very happy with it for dev work.

Sabine Petit

★★★★★

Everything feels fast and stable for gaming. Games run smooth, frame rates are consistent, and CPU-heavy scenes don’t cause the stutter I used to see. It also handles streaming and background apps really well without making gameplay feel worse. I’ve done long gaming sessions with zero crashes and no weird behavior. Temperatures are fine with a good cooler and normal airflow. Overall, this has been a great upgrade.

Yrd. Doç. Kutgün Rabbiye Zorlu

★★★★★

Picked it up for a high-performance workstation style setup and it’s been excellent for daily multitasking. Switching between many applications is instant, heavy background tasks don’t slow the system down, and the PC stays responsive at all times. It’s also been stable through long workdays, which I really value. As long as you pair it with proper cooling, it performs consistently and reliably. Very satisfied with the upgrade.

John Farmer

★★☆☆☆

Gaming was frustrating for me despite the CPU being powerful on paper. I ran into instability and inconsistent performance that took too long to troubleshoot—stutters in some games, random crashes under load, and temps that spiked higher than expected. I tried the usual fixes (BIOS updates, checking cooling, tweaking settings) and while it improved a bit, it still wasn’t the smooth experience I wanted. It might be my specific motherboard/ram combo, but I expected less hassle at this level. For the price, I can’t recommend it based on my experience.

Kenneth Nilsson

★★★☆☆

It’s good for development, but it didn’t blow me away relative to the cost. Builds and multitasking are clearly fast, yet in my day-to-day workflow the real-world difference versus a cheaper modern CPU wasn’t as big as I hoped. It also runs warm and benefits from tuning power limits if you care about noise and efficiency. I don’t regret it, but if someone asked me for value recommendations, I’d probably point them to something lower cost unless they truly need the extra performance. Solid, just not “amazing for the money.”

Mariusz Seiler-Zimmermann

★★★★★

Everything feels fast and stable for development work. I run an IDE, containers, local databases, and a bunch of tools at once, and the system stays responsive with plenty of headroom. Build times are quick and performance remains consistent even during longer sessions. I’ve had no crashes or odd behavior—just reliable, strong performance. With proper cooling it behaves well and stays under control. Great CPU for a serious dev workstation.

Michelotto Morabito-Sollima

★★★★★

Outstanding for daily multitasking. I can keep a lot running at once—tabs, office apps, video calls, downloads, and background updates—and the system never feels sluggish. Everything opens quickly and switching between tasks is instant. It’s also been stable and predictable with no random slowdowns. Cooling matters because it can pull a lot of power under load, but with a good cooler it’s totally manageable. Very happy with it.

Catinca Dochioiu

★★★★☆

Happy with it for development work—it does what it should and then some. Compiling and running multiple tools is smooth, and the system stays responsive even when I’m doing heavier tasks in the background. It’s been reliable with no crashes. The only reason it’s 4 stars is heat/power: it can run warmer than expected if you leave everything on default settings, so cooling and airflow matter. Once set up properly, it’s a strong and dependable CPU.

Megan Baxter

★★★★☆

Great gaming performance overall and a big step up from my previous CPU. Frame rates are strong and I’ve noticed smoother performance in CPU-heavy games and busy scenes. Minor nitpicks: it runs hot if your cooling isn’t up to the job, and it can be a bit power-hungry compared to newer options. After I adjusted fan curves and made sure airflow was good, it’s been stable and enjoyable. I’d recommend it if you want high-end performance and don’t mind planning around cooling.

Torsten Leu

★★★★★

Excellent for editing. Exports are faster, previews are smoother, and I can work on bigger projects without the system bogging down. It also handles multitasking really well, so background tasks don’t interrupt my workflow. Stability has been perfect—no crashes, no weird glitches. With a good cooler it stays under control and performance is consistent. Very satisfied for creative workloads.

Vígmar Þormóðsson

★★★★☆

Overall great for daily multitasking with just a few small drawbacks. Performance is fast and everything feels responsive, even with lots of apps open at the same time. The “minor nitpicks” are mostly around efficiency—this chip can run warm and draw a lot of power when boosting, so it benefits from good cooling and sensible settings. Once I tuned things a bit, it became quieter and still very quick. Strong CPU, just not the most efficient option.

Jason Lieshout

★★★★★

Performance has been excellent for photo/video editing. The system is noticeably faster in exports and general responsiveness, and timeline playback is smoother with fewer hiccups. I also like that it stays responsive while rendering, so I’m not stuck waiting to do other tasks. It’s been stable through long sessions and I haven’t had any crashes. You’ll want solid cooling, but once that’s in place it performs brilliantly.

Troels Vestergaard

★★★★★

I’ve been running the i9-12900K for a while now for photo/video work and it’s been excellent. Timeline playback is smoother, scrubbing feels more responsive, and exports finish noticeably faster than my previous CPU. What I like most is that it stays responsive even while rendering—I'm not stuck waiting to do basic tasks. Stability has been rock solid with long editing sessions and no random crashes. It does run warm when pushed, so a good cooler is a must, but once cooling is handled it’s a beast for creative workloads.

Yvette Brandt

★★★★★

This CPU made my whole system feel instantly faster. Boot times, app launches, switching between tasks—everything is snappy. I regularly multitask with lots of browser tabs, calls, office apps, and background installs and it never feels bogged down. It’s been stable from day one and I haven’t needed to fiddle with settings to get good performance. With a decent cooler it stays under control and doesn’t get obnoxiously loud. For daily productivity and multitasking, it’s been fantastic.

Johan Ström

★★★★★

Performance has been excellent for my everyday workflow. I’m often juggling multiple apps at the same time and this CPU just powers through without slowdowns. Even heavier background tasks like file compression or installs don’t make the system feel sluggish. It’s also been very stable—no crashes, no weird stutters, no issues after long sessions. Cooling matters because it can boost aggressively, but with proper cooling it stays consistent. Overall, a very satisfying upgrade.

Céline Robin

★★★☆☆

It’s a fast CPU, but for my daily use it didn’t feel as “life-changing” as I expected. Basic multitasking is smooth, but my typical workload (browser, office apps, streaming, light work) already ran fine on my old setup, so the difference isn’t dramatic. It also runs hotter than I anticipated, which meant I had to pay extra attention to cooling and noise. Performance is clearly there, but it felt like overkill for what I actually do. Good CPU—just not the best value for my specific needs.