Intel Core i9-11900K (11900KF)
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Product Overview
Intel Core i9-11900K is the flagship of Intel's 11th-gen Core, Rocket Lake family. It is also available without integrated graphics in the form of i9-11900KF. Compared to the i7-11700K, this i9 CPU offers a small bump in maximum turbo frequency but is otherwise almost identical, making it a less compelling option that has been the case in previous generation Core processors.
Rocket Lake is based on its new Cypress Cove microarchitecture backported to the 14nm process. Intel claims that up to 22% IPC (instructions per clock) increase may be observed over the 10th-gen Comet Lake units under the best-case scenarios.
Another area where Intel improved is the integrated graphics, now named Intel UHD 750. It observes higher base and boost frequencies and includes more transistors.
Unlike other lower-priced units, the Core i9-11900K/KF uniquely defaults to 1:1 ratio of DRAM to memory controller when using DDR4-3200MHz memories. This is another of its advantages over the i7.
Alongside the i9-11900K, Intel also markets the Core i9-11900KF. The "F" designation means the i9-11900KF does not come with the integrated graphics. Intel debuted this concept in 2019 in order to salvage chips with defective GPUs that are otherwise perfect. As a result, the i9-11900KF shares with the i9-11900K all specifications except for the difference in integrated graphics. For desktop users with discrete graphics installed, the F-series chip may be an interesting option, thanks to its lower MSRP.
The other Core i9 models introduced with the i9-11900K/KF are the i9-11900, the iGPU-less i9-11900F, and the low-powered i9-11900T.
Ratings
What we found
Pros
- Powerful enough to power through pretty much any workload
- Great CPU performance for the price
Cons
- Only 8 cores in Rocket Lake's Core i9-11900K
What external reviewers found
External score 67%
Pros
- Excellent gaming performance
- Excellent cooling solution
- Comfortable to use
- Supports PCIe 4.0 SSDs
- Extremely affordable
- Extremely fast
Cons
- No overclocking option
- No multi-threaded performance
- Loss of two cores makes overclocking more difficult
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Specifications
Related Products
- New Cypress Cove cores are faster than the Core i7
- Improved CPU performance compared to its predecessor
External Reviews
techradar[1]
Reviewer score 61% (normalized by Neofiliac)The Intel Core i9-11900K is a fine processor. No matter what test we threw at the little chunk of silicon, it was able handle it quickly and efficiently. Gaming, content creation and even just messing around on the desktop are all extremely quick, but it’s essentially the same experience you’ll get anywhere these days. We wish Intel skipped this generation and came back to deliver something valuable with its 12th-generation processors.
Pros
- Extremely fast
- Supports PCIe 4.0 SSDs
- Comfortable to use
Cons
- Lacks two cores
- Loss of two cores
trustedreviews[2]
Reviewer score 70% (normalized by Neofiliac)The Intel Core i9-11900K is the most powerful processor I’ve seen for gaming. But the gains are minimal compared to significantly cheaper options. Power consumption and heat needs to be considered, too, so you know how much you’ll need to spend on a PSU and cooler.
Pros
- Extremely affordable
- Excellent gaming performance
- Excellent cooling solution
Cons
- No multi-threaded performance
- No overclocking option
References
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