Performance comparison: which is faster?
Core i9-10900K (Intel, 2020) and Core i9-10900KF (Intel, 2020) are compared here. Compare not only scores, but also whether the motherboard can be reused and which GPU class is balanced with each CPU.
Overall performance: i9-10900K is about 0.7% faster
Both use the same LGA1200 socket, so they can be installed on the same motherboard. For games, performance balance with the GPU (guideline CPU:GPU = 0.9:1) matters more than CPU speed alone.
Relative performance score (higher is faster). Actual speed varies by workload, cooling, and memory configuration.
| Item | i9-10900K | i9-10900KF |
|---|---|---|
| Performance Score | 27,500 | 27,300 |
| Generation | 10th Gen | 10th Gen |
| Socket | LGA1200 | LGA1200 |
| Release Year | 2020 | 2020 |
| Type | Desktop | Desktop |
| Compatible GPU Example | GeForce RTX 4070 | GeForce RTX 4070 |
| If You Want To... | Recommended |
|---|---|
| Prioritize maximum speed for heavy work or a high-end GPU | i9-10900K |
| Upgrade while reusing the current motherboard | Either works (same LGA1200 socket) |
| Prioritize value and adequate performance | i9-10900KF (the lower model is often sufficient) |
i9-10900K is about 0.7% higher by score (i9-10900K: 27500 points / i9-10900KF: 27300 points). For gaming, the GPU tier usually matters more than a few percent of CPU difference. For CPU-heavy work such as video editing and streaming, choose the faster CPU.
Both are 10th Gen-generation CPUs.Both use the same LGA1200 socket, so they can be installed on the same motherboard.
Using our CPU:GPU = 0.9:1 guideline, GeForce RTX 4070 pairs well with i9-10900K and GeForce RTX 4070 pairs well with i9-10900KF. If either GPU is too strong or too weak, one part holds the other back.
