Intel Core i9 13900KF 24-core LGA 1700

The 13900KF is a 24-core beast that still hangs with the best, but it runs hot enough to heat a small apartment. Find it under $450 and pair it with a serious cooler, and you've got one of the best CPU deals going.

The numbers here are genuinely impressive. A PassMark multi-thread score of 57,504 puts it among the best we've tracked, and single-thread performance sits in the 97th percentile. That 5.7GHz boost on the P-cores is no joke. What surprised us most is the overclocking headroom. Owners are routinely hitting 5.5 to 6.0GHz with proper cooling, which is wild for a chip already this fast out of the box. The hybrid architecture with 8 P-cores and 16 E-cores handles heavy multitasking without breaking a sweat. Just know that 253W turbo power draw means your electricity bill will notice.

The AMD Ryzen 7 9800X3D is the natural rival here, and it's a genuine toss-up. The 9800X3D wins on gaming performance thanks to that 3D V-Cache, but the 13900KF counters with better multi-threaded productivity grunt. For pure gaming, the 9800X3D is the smarter buy. For a mixed workload of gaming plus rendering or streaming, the 13900KF's 24 cores give it the edge. The other competitors in our database aren't really in the same league. The KOMQI Core i3 and be quiet! Ryzen 3 are budget options that don't compete on performance. If you're deciding between these two flagships, it comes down to whether you game more or work more.

This is where the 13900KF gets interesting. US prices swing from $275 to $816 across 8 listings, which is a massive $541 spread. At the low end, this chip is an absolute steal. At the high end, you're better off looking at newer options. Shop around and don't pay more than the mid-$400s. The CAD market is even wilder, ranging from $516 to $2,174 across 3 listings. If you can find it near the bottom of that range, grab it. The lack of integrated graphics actually helps the value proposition here, since you're not paying for an iGPU you probably won't use if you're buying a chip like this.

The Core i9-13900KF is the last great hurrah for Intel's Raptor Lake platform, and it's still an absolute monster. You get 24 cores and 32 threads with a 5.7GHz boost clock, and in our database it lands in the 95th percentile for multi-thread performance. That's top of the charts territory, even with newer chips nipping at its heels. The catch? It runs hot and drinks power like it's training for a marathon. But if you want flagship-level productivity and gaming without paying flagship-next-gen prices, this thing delivers.

If you're building a pure gaming rig and don't care about productivity, the AMD Ryzen 7 9800X3D is the better choice. That 3D V-Cache gives it a real edge in games, and it runs cooler and sips less power. Also skip this if you don't want to deal with a big AIO cooler or if your case can't fit a 360mm radiator. And if you need integrated graphics for troubleshooting or a backup display output, get the regular 13900K instead.

The Core i9-13900KF is still a top-tier CPU in 2025, and if you can find it at a good price, it's one of the best performance-per-dollar deals on the market. The thermal requirements are real, so budget for a serious cooler. But once you've got it dialed in, this chip will chew through anything you throw at it for years. Buy it if you want flagship performance without flagship pricing.