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The processor Intel Core i9-11900KF is primarily targeted at enthusiastic users, gamers, and professionals who demand high performance from their computer. The Intel Core i9 processor series represents the top tier of Intel's processors for consumer computers, offering high clock speeds, multiple processing threads, and advanced technologies for handling very demanding tasks such as gaming, video editing, demanding photo editing software, and other professional applications. Therefore, if you are a demanding user engaged in intensive tasks or desire high performance in gaming, the Intel Core i9-11900KF processor could be an excellent choice for you.
It is suitable for overclocking enthusiasts, as it features an unlocked multiplier, allowing users to increase the clock frequency for even higher performance.
The "F" at the end of the model indicates that it does not have an integrated graphics card, and therefore it is aimed at users who prefer to use a separate graphics card for their needs, such as for gaming or professional use.
The Intel® Core™ 11th Gen processors redefine Intel® CPU performance for laptops and desktops. New core and graphics architectures, AI-based performance enhancements, best-in-class wireless and wired connectivity, and advanced tuning features deliver higher levels of power and flow to meet your expectations.
The 11th Gen Intel® Core™ desktop processors redefine performance and tuning for top-tier gaming with a new CPU architecture, AI-based acceleration, enhanced overclocking capabilities, memory speeds up to DDR4-3200, 20 CPU PCIe 4.0 lanes, and much more.
Smart performance powered by Artificial Intelligence, stunning Intel® Xe graphics, enhanced tuning options, and more come together in 11th Gen Intel® Core™ desktop processors to boost creative productivity, accelerating photo and video editing and graphic design tasks.
The efficient multi-threaded performance of Intel Core 11th Gen processors allows you to maximize stream quality and maintain high FPS during gameplay.
A leap in IPC means that your processor works smarter, not harder. It does more work in each clock cycle, which translates to higher FPS in games and smoother performance in applications. While the IPC measurement may not be familiar to everyone, it is another way to understand why 11th generation CPUs excel in gaming.
The Resizable BAR, recently supported in the 11th generation, is a PCIe feature that can provide a free boost to game performance in certain titles. It changes the way your CPU works with your GPU, potentially unlocking a few extra percentage points of FPS. This is achieved by allowing your CPU to access more data simultaneously.
The 11th generation helps you get more out of your memory. Motherboards now officially support RAM speeds up to 3200MHz and feature advanced overclocking options to help you fine-tune your memory.
Adding more RAM capacity helps you run more programs simultaneously (or meet the demands of AAA games that require a lot of memory). Upgrading to faster RAM, on the other hand, improves the speed at which your CPU retrieves data from memory.
Upgrading from 2933MHz RAM to 3200MHz can provide an increase in FPS in gaming, although this varies depending on the game, your system, and your graphics settings.
PCIe 4.0 support means you'll be ready for the next generation of GPUs and SSDs.
PCIe is the expansion bus you use to connect graphics cards, NVMe SSDs, and peripheral devices like capture cards to your motherboard. 11th Gen Intel® Core™ processors support PCIe 4.0, a version that provides double the bandwidth compared to 3.0.
PCIe 4.0 support means you'll be ready to upgrade to the latest Gen 4 SSD or GPU as the technology matures. 11th Gen Intel® Core™ processors also provide up to 20 CPU PCIe lanes, which offer a more direct connection between the CPU, GPU, and NVMe SSD.
Enhanced multimedia playback is another hallmark of the 11th generation. With support for new video formats and high-speed bit HDR video, the CPUs facilitate watching content with immersive and detailed-rich imagery and creating it yourself.
To provide an improved viewing experience, the 11th Gen Intel® Core™ processors feature hardware support for 12-bit HEVC decoding and 10-bit AV1 decoding. The 12-bit and 10-bit are different color standards for HDR (high dynamic range), which allow for vibrant hues and deep black levels when viewed on an HDR display.
Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.
At 199€, anyone with an LGA1200 motherboard who doesn't do the upgrade is committing a sin. Gen. 4 PCI Express, 20 PCI Express Lanes, and Turbo up to 5.30 GHz. With a moderate-good cooler, with all cores at 5 GHz, it stays below 60 degrees (Scythe Fuma)
I come from a 9900KF and Z390 Aorus Pro, I bought the 11900KF and paired it with Maximus XII Apex. I am running at 5.3 GHz with temperatures ranging from 75-83 degrees Celsius, with 32GB factory 3600 RAM overclocked to 4800. Overall, this processor requires a powerful motherboard to showcase its capabilities. It is definitely worth it! Otherwise, choose a different processor!
The professional reviews of the 11900K/KF say, more or less, that it is garbage. And they have a point. With 200 euros less, there is the 11700K/KF, which practically the only difference is that it is about 0.3 GHz slower. With 100 euros less, there is the 10900K/KF and the 10850K, which in some cases are better (the extra cache memory they have plays a significant role). For the same money, there is the 5900X, which is practically superior in every way. I have heard that Ryzen may have some stability issues, but I don't know the details.
The reason to get the 11900K/KF is not because it is a good deal. I got it because, among other things, I wanted the fastest thing available for the Z490 Unify that I already had, and the AVX-512, PCIe 4.0, all-core boost at 5.1 GHz, and memory gear 1/2 sounded interesting. It is only for enthusiasts. Or for Intel fanboys, however you see it. Or it is one of those things you would do yourself but wouldn't recommend to a friend.
The power consumption is very high, but because it has a large die, it cools relatively easily (for the consumption it has). There is an option in the BIOS for active ABT (boost up to 5.1 GHz on all cores) along with a power limit of 250 Watts, and with no power limit. (Anyway, you can set whatever power limit you want from elsewhere). I concluded that ABT is not a good idea because it gives very high voltage and reaches 90-100 degrees even under moderate load (like Far Cry New Dawn). My cooler is the Noctua NH-D15S. With a good 360 AIO cooler, things would be better, and with a custom loop even better. (Edit: I got a Lian Li Galahad 360 which cools the ABT just fine under normal use (not stress test)). With the Noctua, I eventually set it to 4.7 GHz all-core without AVX offset with a nominal voltage of 1.26, which under load drops to 1.17 (LLC 6), and ring 42. I didn't have the headroom to do a stress test with a higher frequency because it already reaches 98 degrees even with all the fans at full speed in OCCT. Under normal use, it reaches up to 75 degrees under heavy load, which is normal.
I was a bit disappointed with the memory overclocking with the MSI Z490 Unify. The 10600K I had could run AIDA64 with memory 4533 18-18-18-36 and 4600 17-20-20-40. The 11900KF with gear 2 does not work at all above ~4450 MHz memory. I tried many combinations of voltages and very loose timings with the latest BIOS. So it's not the fault of the 11900KF, but the BIOS of the Z490 Unify which is not well-tuned for the 11th generation. With gear 1, I got it to 3600 12-13-13-28. The memory is 2x16 dual rank Samsung B-die (GSkill F4-4000C16D-32GTZRA). For gaming, gear 1 is better, even if the memory frequency doesn't go very high. With gear 2, it can achieve higher bandwidth, but it adds about 10ns latency compared to gear 1, and games are more sensitive to latency than to bandwidth. Quite a few benchmarks on the internet have gear 2, and it loses a bit of performance that way.
Edit: Now that the 12th generation has come out, the 12700K is clearly better than the 11900K. The only reason to get the 11900K (in my opinion) is if you already have a Z590 motherboard. If you have Z490, I would recommend the 10900K, which is on par and will have better compatibility.
Edit 2: The 11th generation has one advantage over the 10th, stability. The Skylake architecture has a design flaw that can cause cache errors, under certain conditions even at stock settings. Source: https://rog.asus.com/forum/showthread.php?123415-Maximus-13-and-Rocket-Lake-The-Rules-have-Changed
Edit 3: With the Z590 Unify-X, I took the same memory 3733 CL13 at gear 1. With more effort (and voltage on the memory controller at the limits of safety), I might have been able to reach 3800. With gear 2, I reached up to 4533. Although the dual rank B-die memory is tough for the memory controller, it seems I got a below-average memory controller. The 11th generation Intel generally struggles with dual rank memory at high frequencies. A single rank B-die I tried went to 4800 easily. And a single rank Hynix DJR worked at 5333, but the re-train stability was terrible. It could be the motherboard, or the microcode of the memory controller, I'm not sure. I hear that the Intel memory controller, when it's on the edge of stability at gear 2, loses stability just like that, and without reboot or memory training.
Verified purchase
 Intel Core i9-11900KF 3.5GHz Processor 8 Core for Socket 1200 in Box |  Intel Core i9-11900K 3.5GHz Processor 8 Core for Socket 1200 in Box |  Intel Core i9-12900K 2.4GHz Processor 16 Core for Socket 1700 in Box |  Intel Core i7-11700K 3.6GHz Processor 8 Core for Socket 1200 in Box |  Intel Core i9-10900KF 3.70GHz Processor 10 Core for Socket 1200 in Box |
|---|---|---|---|---|
| from 1.372,20 Lei | from 1.554,17 Lei | from 1.591,30 Lei | from 1.428,37 Lei | from 1.420,69 Lei |
| ManufacturerIntel | Intel | Intel | Intel | Intel |
| Available through Skroutz | Available through Skroutz | Available through Skroutz | Available through Skroutz | - |
| FamilyCore i9 | Core i9 | Core i9 | Core i7 | Core i9 |
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