Intel Core i9 9900KF vs i9 10900X
We compared two desktop CPUs: the 3.6 GHz Intel Core i9 9900KF with 8-cores against the 3.7 GHz i9 10900X with 10-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 9900KF
- Consumes up to 42% less energy than the Core i9 10900X – 95 vs 165 Watt
- More than 6° C higher critical temperature
- 11% higher Turbo Boost frequency (5 GHz vs 4.5 GHz)
- 11% faster in a single-core Geekbench v5 test - 1280 vs 1158 points
Advantages of Intel Core i9 10900X
- Supports up to 256 GB DDR4-2933 RAM
- Supports quad-channel memory
- Newer - released 9-months later
- Has 2 more physical cores
- Has 4 MB larger L3 cache size
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 | October 7, 2019 |
| Launch price | 499 USD | 590 USD |
| Type | Desktop | Desktop |
| Codename | Coffee Lake | Cascade Lake |
| Model number | i9-9900KF | i9-10900X |
| Socket | LGA-1151 | LGA-2066 |
| Integrated GPU | No | No |
Performance
| Cores | 8 | 10 |
| Threads | 16 | 20 |
| Base Frequency | 3.6 GHz | 3.7 GHz |
| Turbo Boost Frequency | 5 GHz | 4.5 GHz |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 36x | 37x |
| Bus Bandwidth | 8 GT/s | - |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 256K (per core) | 1MB (per core) |
| L3 Cache | 16MB (shared) | 20MB (shared) |
| Unlocked Multiplier | Yes | Yes |
Power
| Fabrication process | 14 nm | 14 nm |
| TDP | 95 W | 165 W |
| Max. temperature | 100°C | 94°C |
Memory support
| Memory types | DDR4-2666 | DDR4-2933 |
| Memory Size | 128 GB | 256 GB |
| Max. Memory Channels | 2 | 4 |
| Max. Memory Bandwidth | 41.6 GB/s | - |
| ECC Support | No | No |
Misc
| Official site | Intel Core i9 9900KF official page | Intel Core i9 10900X official page |
| PCI Express Version | 3.0 | 3.0 |
| PCI Express Lanes | 16 | 48 |
| Instruction Set | SSE4.1, SSE4.2, AVX-2 | SSE4.1, SSE4.2, AVX-2, AVX-512 |
Cast your vote
Total votes: 1