CPU Comparison: Intel Core i9-12900K vs Intel Core i9-9940X @ 3.30GHz

Key Findings

The Intel Core i9-12900K leads in single-threaded performance by up to 65.3%
In multi-threaded workloads, the Intel Core i9-12900K shows superior performance with a 57.3% advantage
The Intel Core i9-9940X @ 3.30GHz has the highest core count with 14 cores

Performance Rankings & Market Position

Intel Core i9-12900K

Desktop

Release Date

Q2 2022

Market Position

183rd fastest in multithreading

4890 CPUs37th fastest in single threading

4890 CPUs51st fastest in

1398 Desktop CPUs

Intel Core i9-9940X @ 3.30GHz

Desktop

Release Date

Q4 2018

Market Position

382nd fastest in multithreading

4890 CPUs742nd fastest in single threading

4890 CPUs126th fastest in

1398 Desktop CPUs

Performance

Single-Thread Performance

i9-12900K

4,344

3.30GHz

2,628

Multi-Thread Performance

i9-12900K

44,011

3.30GHz

27,975

Specifications: Intel Core i9-12900K vs Intel Core i9-9940X @ 3.30GHz

💻CPU Model

Intel Core i9-12900K

i9-12900K

Intel Core i9-9940X @ 3.30GHz

3.30GHz

🔄Other Names

12th Gen Intel(R) Core(TM) i9-12900KS, 12th Gen Intel Core i9-12900KS

i9-12900K

Intel(R) Core(TM) i9-9940X CPU @ 3.30GHz

3.30GHz

⚡Base Clock

N/A

i9-12900K

3.3 GHz

3.30GHz

🚀Turbo Clock

N/A

i9-12900K

4.5 GHz

3.30GHz

💻Cores/Threads

N/A

i9-12900K

14 Threads: 28

3.30GHz

🔌Socket

LGA 1700

i9-12900K

FCLGA2066

3.30GHz

⚡TDP

150 W

i9-12900K

165 W

3.30GHz

💾Cache

L1 Instruction Cache: 8 x 32 KBL1 Data Cache: 8 x 48 KBL2 Cache: 8 x 1280 KBL3 Cache: 30 MB

i9-12900K

L1 Instruction Cache: 14 x 32 KBL1 Data Cache: 14 x 32 KBL2 Cache: 14 x 1024 KBL3 Cache: 19 MB

3.30GHz

The Intel Core i9-12900K and Intel Core i9-9940X @ 3.30GHz compete in the Desktop segment. The Intel Core i9-12900K shows superior single-thread performance, making it better for tasks like gaming and light workloads.

For multi-threaded applications, the Intel Core i9-9940X @ 3.30GHz takes the lead, despite having the same core count.

Power consumption differs significantly, with the Intel Core i9-9940X @ 3.30GHz drawing more power under load (165W vs 150W). This may impact system thermal design and power supply requirements.