Intel Core i9 12900K vs AMD Ryzen 9 7900X
We compared two desktop CPUs: the 3,2 GHz Intel Core i9 12900K with 16-cores against the 4.7 GHz AMD Ryzen 9 7900X with 12-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of Intel Core i9 12900K
- Has 4 more physical cores
- Around 3.4 GB/s (5%) higher theoretical memory bandwidth
Advantages of AMD Ryzen 9 7900X
- Newer - released 11-months later
- Has 34816 KB larger L3 cache size
- More modern manufacturing process – 5 versus 10 nanometers
- 16% faster in a single-core Geekbench v5 test - 2294 vs 1982 points
- 10% higher Turbo Boost frequency (5.6 GHz vs 5.1 GHz)
Benchmarks
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Specifications
General
| Vendor | Intel | AMD |
| Released | October 27, 2021 | September 29, 2022 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake | Zen 4 (Raphael) |
| Model number | i9-12900K | - |
| Integrated GPU | UHD Graphics 770 | Radeon Graphics (Ryzen 7000) |
CPU
| P-Cores | 8 | 12 |
| P-Threads | 16 | 24 |
| Base Frequency (P) | 3,2 GHz | 4.7 GHz |
| Turbo Boost Frequency (P) | 5.1 GHz | 5.6 GHz |
| E-Cores | 8 | - |
| E-Threads | 8 | - |
| Base Frequency (E) | 2.4 GHz | - |
| Turbo Boost Frequency (E) | 3.9 GHz | - |
| Total Cores | 16 | 12 |
| Total Threads | 24 | 24 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 32x | 47x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 14MB (shared) | 1MB (per core) |
| L3 Cache | 30MB (shared) | 64MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Package
| Transistors | - | 13.1 billions |
| Fabrication process | 10 nm | 5 nm |
| Socket | LGA-1700 | AM5 |
| TDP | 125 W | 170 W |
| Max. Boost TDP | - | 230 W |
| Peak temperature | 100°C | 95°C |
iGPU
| Integrated Graphics | Intel UHD Graphics 770 | Radeon Graphics (Ryzen 7000) |
| GPU Base Clock | 300 MHz | 1500 MHz |
| GPU Boost Clock | 1550 MHz | 2200 MHz |
| Shading Units | 256 | 128 |
| TMUs | 16 | 8 |
| ROPs | 8 | 4 |
| Execution Units | 32 | 2 |
| TGP | 15 W | 15 W |
iGPU FLOPS
Memory Support
| Memory types | DDR5-4800, DDR4-3200 | DDR5-5200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 76.8 GB/s | 73.4 GB/s |
| ECC Support | Yes | Yes |
Misc
| Official site | Intel Core i9 12900K official page | AMD Ryzen 9 7900X official page |
| PCI Express Version | 5.0 | 5.0 |
| PCI Express Lanes | 20 | 28 |
Cast your vote
Total votes: 202