Intel Core i9 12900KS vs AMD Ryzen 7 5800X3D
We compared two desktop CPUs: the 3.4 GHz Intel Core i9 12900KS with 16-cores against the 3.4 GHz AMD Ryzen 7 5800X3D with 8-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
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 12900KS
- Has 8 more physical cores
- Unlocked multiplier
- Around 29.12 GB/s (61%) higher theoretical memory bandwidth
- Newer PCI Express version – 5.0
- 26% faster in a single-core Geekbench v5 test - 2053 vs 1633 points
- 16% higher Turbo Boost frequency (5.2 GHz vs 4.5 GHz)
- Includes an integrated GPU Intel UHD Graphics 770
- More than 10° C higher critical temperature
Advantages of AMD Ryzen 7 5800X3D
- Has 66 MB larger L3 cache size
- More modern manufacturing process – 7 versus 10 nanometers
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 | April 4, 2022 | March 15, 2022 |
| Type | Desktop | Desktop |
| instruction set | x86-64 | x86-64 |
| Codename | Alder Lake | Zen 3 (Vermeer) |
| Model number | i9-12900KS | - |
| Integrated GPU | UHD Graphics 770 | No |
CPU
| P-Cores | 8 | 8 |
| P-Threads | 16 | 16 |
| Base Frequency (P) | 3.4 GHz | 3.4 GHz |
| Turbo Boost Frequency (P) | 5.2 GHz | 4.5 GHz |
| E-Cores | 8 | - |
| E-Threads | 8 | - |
| Base Frequency (E) | 2.5 GHz | - |
| Turbo Boost Frequency (E) | 4 GHz | - |
| Total Cores | 16 | 8 |
| Total Threads | 24 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 34x | 34x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 14MB (shared) | 512K (per core) |
| L3 Cache | 30MB (shared) | 96MB (shared) |
| Unlocked Multiplier | Yes | No |
Package
| Fabrication process | 10 nm | 7 nm |
| Socket | LGA-1700 | AM4 |
| TDP | 150 W | 105 W |
| Max. Boost TDP | 241 W | - |
| Peak temperature | 100°C | 90°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, DDR4-2933, DDR4-2667 |
| 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 12900KS official page | AMD Ryzen 7 5800X3D official page |
| PCI Express Version | 5.0 | 4.0 |
| PCI Express Lanes | 20 | 20 |
Cast your vote
Total votes: 50