Intel Core i9 12900K vs AMD Ryzen 9 5950X
We compared two 16-core desktop CPUs: the 3.2 GHz Intel Core i9 12900K against the 3.4 GHz AMD Ryzen 9 5950X. 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
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
- Newer - released 1-year and 1-month later
- Around 29.12 GB/s (61%) higher theoretical memory bandwidth
- Newer PCI Express version – 5.0
- 20% faster in a single-core Geekbench v5 test - 2191 vs 1825 points
- Includes an integrated GPU Intel UHD Graphics 770
- 6% higher Turbo Boost frequency (5.2 GHz vs 4.9 GHz)
Advantages of AMD Ryzen 9 5950X
- Has 34 MB larger L3 cache size
- More modern manufacturing process – 7 versus 10 nanometers
- Consumes up to 16% less energy than the Core i9 12900K – 105 vs 125 Watt
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)
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Specifications
General
| Vendor | Intel | AMD |
| Released | October 27, 2021 | October 8, 2020 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake-S | Vermeer |
| Model number | i9-12900K | - |
| Socket | LGA-1700 | AM4 |
| Integrated GPU | UHD Graphics 770 | No |
Performance
| Cores | 16 | 16 |
| Threads | 24 | 32 |
| Base Frequency | 3.2 GHz | 3.4 GHz |
| Turbo Boost Frequency | 5.2 GHz | 4.9 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 32x | 34x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 14MB (shared) | 512K (per core) |
| L3 Cache | 30MB (shared) | 64MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Power
| Transistors | - | 19.2 billions |
| Fabrication process | 10 nm | 7 nm |
| TDP | 125 W | 105 W |
| Max. temperature | 100°C | 95°C |
iGPU
| Integrated Graphics | Intel UHD Graphics 770 | - |
| GPU Base Clock | 300 MHz | - |
| GPU Boost Clock | 1550 MHz | - |
| Shading Units | 256 | - |
| TMUs | 16 | - |
| ROPs | 8 | - |
| Execution Units | 32 | - |
| TGP | 15 W | - |
iGPU FLOPS
Memory support
| Memory types | DDR5-4800, DDR4-3200 | DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 76.8 GB/s | 47.68 GB/s |
| ECC Support | Yes | Yes |
Misc
| Official site | Intel Core i9 12900K official page | AMD Ryzen 9 5950X official page |
| PCI Express Version | 5.0 | 4.0 |
| PCI Express Lanes | 20 | 20 |
Cast your vote
Total votes: 1465
