Intel Core i9 11900F vs AMD Ryzen 9 3900X
We compared two desktop CPUs: the 2.5 GHz Intel Core i9 11900F with 8-cores against the 3.8 GHz AMD Ryzen 9 3900X 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
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 11900F
- Newer - released 1-year and 9-months later
- Consumes up to 38% less energy than the Ryzen 9 3900X – 65 vs 105 Watt
- 33% faster in a single-core Geekbench v5 test - 1737 vs 1305 points
- 13% higher Turbo Boost frequency (5.2 GHz vs 4.6 GHz)
- Around 2.32 GB/s (5%) higher theoretical memory bandwidth
Advantages of AMD Ryzen 9 3900X
- Has 48 MB larger L3 cache size
- More modern manufacturing process – 7 versus 14 nanometers
- Unlocked multiplier
- Has 4 more physical cores
Benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
Specifications
General
| Vendor | Intel | AMD |
| Released | March 16, 2021 | July 7, 2019 |
| Launch price | 422 USD | 499 USD |
| Type | Desktop | Desktop |
| Codename | Rocket Lake | Zen 2 |
| Model number | i9-11900F | - |
| Socket | BGA-1200 | AM4 |
| Integrated GPU | No | No |
Performance
| Cores | 8 | 12 |
| Threads | 16 | 24 |
| Base Frequency | 2.5 GHz | 3.8 GHz |
| Turbo Boost Frequency | 5.2 GHz | 4.6 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 25x | 38x |
| Bus Bandwidth | 8 GT/s | - |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 512K (per core) | 512K (per core) |
| L3 Cache | 16MB (shared) | 64MB (shared) |
| Unlocked Multiplier | No | Yes |
Power
| Transistors | - | 19.2 billions |
| Fabrication process | 14 nm | 7 nm |
| TDP | 65 W | 105 W |
| Max. temperature | 100°C | 95°C |
Memory support
| Memory types | DDR4-3200 | DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 50 GB/s | 47.68 GB/s |
| ECC Support | No | Yes |
Misc
| Official site | Intel Core i9 11900F official page | AMD Ryzen 9 3900X official page |
| PCI Express Version | 4.0 | 4.0 |
| PCI Express Lanes | 20 | 20 |
Cast your vote
Total votes: 4