CPU Comparison: Intel Core i9-12900 vs AMD Ryzen 9 3900

Key Findings

The Intel Core i9-12900 leads in single-threaded performance by up to 58.2%
In multi-threaded workloads, the Intel Core i9-12900 shows superior performance with a 34.7% advantage
The AMD Ryzen 9 3900 has the highest core count with 12 cores

Performance Rankings & Market Position

Intel Core i9-12900

Desktop

Release Date

Q2 2022

Market Position

183rd fastest in multithreading

4890 CPUs37th fastest in single threading

4890 CPUs51st fastest in

1398 Desktop CPUs

AMD Ryzen 9 3900

Desktop

Release Date

Q3 2020

Market Position

292nd fastest in multithreading

4890 CPUs637th fastest in single threading

4890 CPUs90th fastest in

1398 Desktop CPUs

Performance

Single-Thread Performance

i9-12900

4,344

3900

2,746

Multi-Thread Performance

i9-12900

44,011

3900

32,666

Specifications: Intel Core i9-12900 vs AMD Ryzen 9 3900

💻CPU Model

Intel Core i9-12900

i9-12900

AMD Ryzen 9 3900

3900

🔄Other Names

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

i9-12900

AMD Ryzen 9 3900XT 12-Core Processor

3900

⚡Base Clock

N/A

i9-12900

3.8 GHz

3900

🚀Turbo Clock

N/A

i9-12900

4.7 GHz

3900

💻Cores/Threads

N/A

i9-12900

12 Threads: 24

3900

🔌Socket

LGA 1700

i9-12900

AM4

3900

⚡TDP

150 W

i9-12900

105 W

3900

💾Cache

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

i9-12900

L1 Instruction Cache: 12 x 32 KBL1 Data Cache: 12 x 32 KBL2 Cache: 12 x 512 KBL3 Cache: 64 MB

3900

The Intel Core i9-12900 and AMD Ryzen 9 3900 compete in the Desktop segment. The Intel Core i9-12900 shows superior single-thread performance, making it better for tasks like gaming and light workloads.

For multi-threaded applications, the AMD Ryzen 9 3900 takes the lead, despite having the same core count.

Power consumption differs significantly, with the Intel Core i9-12900 drawing more power under load (150W vs 105W). This may impact system thermal design and power supply requirements.