CPU Comparison: Intel Core i9-12900KS vs AMD Ryzen 9 3900
Key Findings
- The Intel Core i9-12900KS leads in single-threaded performance by up to 58.2%
- In multi-threaded workloads, the Intel Core i9-12900KS 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 i9-12900KS
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
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
i9-12900KS
4,344
3900
2,746
Multi-Thread Performance
i9-12900KS
44,011
3900
32,666
Specifications: Intel Core i9-12900KS vs AMD Ryzen 9 3900
💻CPU Model
Intel Core i9-12900KS
i9-12900KS
AMD Ryzen 9 3900
3900
🔄Other Names
12th Gen Intel(R) Core(TM) i9-12900KS, 12th Gen Intel Core i9-12900KS
i9-12900KS
AMD Ryzen 9 3900XT 12-Core Processor
3900
âš¡Base Clock
N/A
i9-12900KS
3.8 GHz
3900
🚀Turbo Clock
N/A
i9-12900KS
4.7 GHz
3900
💻Cores/Threads
N/A
i9-12900KS
12 Threads: 24
3900
🔌Socket
LGA 1700
i9-12900KS
AM4
3900
âš¡TDP
150 W
i9-12900KS
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
i9-12900KS
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 i9-12900KS and AMD Ryzen 9 3900 compete in the Desktop segment. The Intel Core i9-12900KS 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 i9-12900KS drawing more power under load (150W vs 105W). This may impact system thermal design and power supply requirements.