Intel Core i9 9900KF vs i9 11900
We compared two 8-core desktop CPUs: the 3.6 GHz Intel Core i9 9900KF against the 2.5 GHz i9 11900. 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 9900KF
- Unlocked multiplier
Advantages of Intel Core i9 11900
- Newer - released 2-years and 3-months later
- Consumes up to 32% less energy than the Core i9 9900KF – 65 vs 95 Watt
- Newer PCI Express version – 4.0
- 34% faster in a single-core Geekbench v5 test - 1714 vs 1280 points
- Around 8.4 GB/s (20%) higher theoretical memory bandwidth
- Includes an integrated GPU Intel UHD Graphics 750
- 4% higher Turbo Boost frequency (5.2 GHz vs 5 GHz)
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 | Intel |
| Released | January 7, 2019 | March 16, 2021 |
| Launch price | 499 USD | 439 USD |
| Type | Desktop | Desktop |
| Codename | Coffee Lake | Rocket Lake |
| Model number | i9-9900KF | i9-11900 |
| Socket | LGA-1151 | BGA-1200 |
| Integrated GPU | No | Intel UHD Graphics 750 |
Performance
| Cores | 8 | 8 |
| Threads | 16 | 16 |
| Base Frequency | 3.6 GHz | 2.5 GHz |
| Turbo Boost Frequency | 5 GHz | 5.2 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 36x | 25x |
| Bus Bandwidth | 8 GT/s | 8 GT/s |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 256K (per core) | 256K (per core) |
| L3 Cache | 16MB (shared) | 16MB (shared) |
| Unlocked Multiplier | Yes | No |
Power
| Fabrication process | 14 nm | 14 nm |
| TDP | 95 W | 65 W |
| Max. temperature | 100°C | 100°C |
Memory support
| Memory types | DDR4-2666 | DDR4-3200 |
| Memory Size | 128 GB | 128 GB |
| Max. Memory Channels | 2 | 2 |
| Max. Memory Bandwidth | 41.6 GB/s | 50 GB/s |
| ECC Support | No | No |
Misc
| Official site | Intel Core i9 9900KF official page | Intel Core i9 11900 official page |
| PCI Express Version | 3.0 | 4.0 |
| PCI Express Lanes | 16 | 20 |
| Instruction Set | SSE4.1, SSE4.2, AVX-2 | - |
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