Intel Core i9-11900K vs Intel Core i9-12900K

Compare Intel 11th Generation Core i9 8 core CPU vs Intel 12th Generation Core i9 16 core processor, specs and benchmark score. Which is the better CPU for gaming?

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Price

The cheapest price from our partner retailers

$ 560
$ 41.38 slightly less expensive
$ 601

Benchmark Score

Overall Score

A combined score of all workloads

105 %
164 %
56% significantly better overall score

Gaming Score

The raw gaming performance with a fast GPU

133 %
172 %
29% slightly better gaming score

Multitasking Score

Performance in workloads using up to 8 cores

96 %
162 %
68% significantly better multitasking score

Heavy Workload Score

Performance in workloads using up to 16 cores

94 %
161 %
71% significantly better heavy workload score

Free CPU Benchmark

Want to compare your processor against the Core i9-11900K and the Core i9-12900K? Download our free and quick PC Performance Test.

Other Benchmarks

Geekbench (multi) score

Multi threaded benchmark

10,756
17,253
60% significantly higher Geekbench (multi) score

Geekbench (single) score

Single threaded benchmark

1,816
1,988
9% slightly higher Geekbench (single) score

Cinebench R23 score

Multi threaded benchmark

15,519
27,005
74% significantly higher Cinebench R23 score

3DMark Physics score

Physics simulation benchmark

12,499
18,180
45% significantly higher 3DMark Physics score

Specifications

Cores

Number of physical processing units

8
16
100% significantly more cores

Threads

Number of logical processing units

16
24
49% significantly more threads

Clock Speed

Base frequency at which the chip operates

4 GHz
9% slightly higher clock speed
3 GHz

Turbo Speed

Higher frequency used for heavy workloads

5 GHz
1% slightly higher turbo speed
5 GHz

TDP

Thermal Design Power: Measure of heat generated by the CPU

125 W
92% significantly lower TDP
241 W

PCIe Lanes

Number of physical connections between the CPU and expansion slots

20
Identical
20

Memory Channels

Lanes for simultaneous memory access

2
Identical
2

Supported Memory

Maximum amount of RAM supported by this CPU

128 GiB
Identical
128 GiB

L1 Cache

Smallest embedded memory, but the fastest

640 KiB
1,280 KiB
100% significantly more L1 cache

L3 Cache

General memory pool for all cores

16 MiB
30 MiB
87% significantly more L3 cache

Other details

Rank

Ranking in the hardwareDB database

35th of 1,327
1st of 1,327

Family

The product line

11th Generation Core i9
12th Generation Core i9

Release date

The official date of release of this chip

February 2021
November 2021

Memory Type

The type of memory used by this chip

DDR4-3200
DDR5-4800

Is Unlocked

Can this CPU can be overclocked

Yes
Yes

Supports ECC memory

Does this CPU support error correcting memory

No
Yes

Core i9-11900K vs Core i9-12900K specs and performance

In our benchmarks, the Core i9-12900K beats the Core i9-11900K in overall performance. Furthermore, our gaming benchmark shows that it also outperforms the Core i9-11900K in all gaming tests too.

With info from our database, we find that the Core i9-12900K has significantly more cores with 16 cores whereas the Core i9-11900K has 8 cores. It also has more threads than the Core i9-11900K. Our comparison shows that the Core i9-11900K has a slightly higher clock speed compared to the Core i9-12900K. Also, the Core i9-11900K has a slightly higher turbo speed. A Core i9-11900K CPU outputs less heat than a Core i9-12900K CPU because of its significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Core i9-11900K has more threads than cores. Each physical core is split into multiple threads.

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