Performance comparison: which is faster?
Core i7-9700KF (Intel, 2019) and Core i7-8086K (Intel, 2018) 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: i7-9700KF is about 9.5% faster
Both use the same LGA1151 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 | i7-9700KF | i7-8086K |
|---|---|---|
| Performance Score | 17,300 | 15,800 |
| Generation | 9th Gen | 8th Gen |
| Socket | LGA1151 | LGA1151 |
| Release Year | 2019 | 2018 |
| Type | Desktop | Desktop |
| Compatible GPU Example | GeForce RTX 5060 | Radeon RX 6800 |
| If You Want To... | Recommended |
|---|---|
| Prioritize maximum speed for heavy work or a high-end GPU | i7-9700KF |
| Upgrade while reusing the current motherboard | Either works (same LGA1151 socket) |
| Prioritize value and adequate performance | i7-8086K (the lower model is often sufficient) |
i7-9700KF is about 9.5% higher by score (i7-9700KF: 17300 points / i7-8086K: 15800 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.
i7-9700KF is 9th Gen, while i7-8086K is 8th Gen.Both use the same LGA1151 socket, so they can be installed on the same motherboard.
Using our CPU:GPU = 0.9:1 guideline, GeForce RTX 5060 pairs well with i7-9700KF and Radeon RX 6800 pairs well with i7-8086K. If either GPU is too strong or too weak, one part holds the other back.
