Intel Core i9-11900K

Intel Core i9-11900K Benchmark and Specs

Intel Core i9-11900K Processor benchmark, specs and release date - 4 GHz 8 core Intel 11th Generation Core i9 LGA 1200 CPU rating. Is the Core i9-11900K good for gaming?

Benchmark Score

85 %
Very Good score from 2 samples
High uncertainty
Very Good
34th of 627
143rd of 627
2 benchmarks

CPU benchmarks

Here are the performance results of this CPU in both the hardwareDB Benchmark and other benchmark utilities. Synthetic tests are an estimation of real-world performance using consistent and repeatable benchmarks.


Very Good

85 %



109 %


Very Good

77 %

Heavy Workloads

Very Good

75 %

Want to compare your CPU against the Core i9-11900K and these results? Download our free and quick PC Performance Test.

Alternative benchmarks

Here are some benchmark results using alternative testing software

3DMark Physics

3DMark Physics

Physics simulation benchmark



Cycles Render (Samples per minute)

Cinebench R23

Cinebench R23

Multi threaded benchmark

Geekbench 5 (multi)

Geekbench 5 (multi)

Multi threaded benchmark

Geekbench 5 (single)

Geekbench 5 (single)

Single threaded benchmark

Geekbench 6 (multi)

Geekbench 6 (multi)

Multi threaded benchmark

Geekbench 6 (single)

Geekbench 6 (single)

Single threaded benchmark


Compare these benchmarks and specs using our CPU Comparison Tool

Quick compare

Search for a CPU to compare against or choose a popular comparison below.

CPU Comparison

The Intel Core i9-11900K compared against popular alternatives. Compare against more CPUs with our CPU Comparison Tool.

Intel Core i9-12900K
134 %
AMD Ryzen 9 5950X
106 %
AMD Ryzen 9 5900X
100 %
Intel Core i9-11900KF
85 %
Intel Core i9-11900K
85 %
Intel Core i7-11700K
80 %
AMD Ryzen 7 5700G
65 %


Clock Speed 3.5 GHz
Turbo Speed 5.3 GHz
Cores 8
Threads 16
L1 Cache 640 KiB
L2 Cache 4096 KiB
L3 Cache 16 MiB
PCIe Revision 4
PCIe Lanes 20
Socket LGA 1200
Family 11th Generation Core i9
Memory Type DDR4-3200
Memory Channels 2
Max Memory 128 GiB
Release Date 2021-02-01
Supports ECC Memory No
Has Unlocked Multiplier Yes
TDP 125 W

More Intel 11th Generation Core i9 CPUs

Core i9-11900KF
Core i9-11900KF
Core i9-11950H
Core i9-11950H

Intel Core i9-11900K

The Core i9-11900K is a 8 core CPU from Intel released in 2021. This chip has a very good overall score at 85% in our CPU benchmark. Our gaming benchmark shows that this CPU is an amazing processor for gaming, with a score of 109%. As for multitasking and heavy workloads, the Core i9-11900K scores 77% and 75% respectively. Indeed, this is a very good rating for very heavy workloads.

The Core i9-11900K has 8 cores and 16 threads. This CPU makes use of simultaneous multithreading technology to improve performance on parallel tasks. Each physical CPU core is divided into multiple logical processors. This Intel CPU has a clock speed of 3.5 GHz and a turbo speed of 5.3 GHz : a higher clock speed that can be reached when thermals and power delivery allow. This CPU has an unlocked multiplier and allows for overclocking. With adequate cooling and a good power supply, it's possible to run this CPU at a higher clock speed.

As for memory, the Core i9-11900K makes use of DDR4-3200 memory. The faster the memory, the better. Faster memory means that the CPU doesn't have to wait to get the data it needs. It can accommodate a maximum of 128 GiB of memory. Furthermore, this chip can handle up to 2 channels of RAM, a multichannel memory architecture allows for higher data transfer between the CPU and the memory. However, to take advantage of this, you must have enough memory slots filled. Error correcting memory is not supported on this processor.

In terms of cache, the Core i9-11900K has 640 KiB of level 1 cache, 4 MiB of level 2 cache and 16 MiB of level 3 cache. This is a fast memory located close to the processor, which stores copies of frequently used data from main memory.

This CPU has fast connectivity with support for PCI-Express Gen 4. The faster the PCIe link, the better. This allows for better performance with GPUs and NVME SSDs. It has a total of 20 PCIe lanes.

Power and thermals for the Intel Core i9-11900K CPU are a TDP (Thermal Design Power) of 125 watts. This measures the amount of heat the processor produces when running at full load. This isn't a measure of power consumption, but it's good estimate.

To figure out your PCs processor specs and performance, download our free CPU Benchmark utility.


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