The details make the difference
AMD Ryzen 9 3900X vs Intel Core i9-12900
Comparing 2 of up to 6 processors side by side.
| Metric | ||
|---|---|---|
| Single core | 2,702 | 4,002 |
| Multicore | 32,467 | 33,612 |
| Estimated price | $136.21 | $499 |
| Cores | 12 | 16 |
| Threads | 24 | 24 |
| Performance cores | Not listed | 8 |
| Efficient cores | Not listed | 8 |
| Turbo clock | 4.6 GHz | 5.1 GHz |
| Typical TDP | 105 W | 65 W |
| Socket | AM4 | FCLGA1700 |
| First seen | Q3 2019 | Q1 2022 |
How do the benchmark scores compare?
AMD Ryzen 9 3900X has a PassMark single-core score of 2,702, compared with 4,002 for Intel Core i9-12900. Intel Core i9-12900 has the higher score in this benchmark.
AMD Ryzen 9 3900X has a PassMark multicore score of 32,467, compared with 33,612 for Intel Core i9-12900. Intel Core i9-12900 has the higher score in this benchmark.
Single-core scores describe one thread; multicore scores describe aggregate CPU throughput. These results do not establish which CPU is faster in every application. Compare platform support and total upgrade cost before buying.
AMD Ryzen 9 3900X lists AM4; Intel Core i9-12900 lists FCLGA1700. Check the motherboard manufacturer's CPU support list and BIOS requirements. If the required platform changes, include motherboard, memory and cooling costs; the CPU price alone is not the full upgrade cost.
Sources and data freshness
- AMD Ryzen 9 3900X on PassMark CPU Benchmarks. Data retrieved .
- Intel Core i9-12900 on PassMark CPU Benchmarks. Data retrieved .
The retrieval date records when Find Me a CPU collected the source data. It is not a benchmark test date. Prices are USD estimates from the source, converted for other currencies, rather than live retailer offers. Release / first seen means the CPU first appeared on PassMark charts, not necessarily its launch date.
Benchmark scores do not predict frame rates in a particular game. Typical TDP is a specification, not measured electricity use. A matching socket does not confirm motherboard support; check the manufacturer's CPU support list and BIOS requirements.
How our data and recommendations work