Compare / Core i5-8400 vs Core i9-7940X
Core i5-8400 vs Core i9-7940X: which is better?
Core i5-8400 and Core i9-7940X perform almost the same in games (4K · high settings · RTX 5090). Core i5-8400 offers better value for money.
VS
Cheaper: Core i5-8400Value: Core i5-8400
Head to head
36%
Gaming performance
36%
49/100
Part score
49/100
155 FPS
Average FPS
154 FPS
≈ $52 (used)
Approx. price
≈ $109 (used)
100/100
Value for money
47/100
Specifications
| Core i5-8400 | Core i9-7940X | |
|---|---|---|
| Cores / threads | 6 / 6 | 14 |
| Max boost | 4 GHz | 4.4 GHz |
| Power (TDP) | 65 W | 165 W |
| Socket | LGA1151 | LGA1151 |
| Memory | DDR4 | DDR4 |
| Integrated graphics | Yes | Yes |
| Release year | 2017 | 2015 |
Free · no install
Is your CPU holding back your graphics card?
The scanner finds your graphics card, CPU, RAM, monitor, mouse and keyboard in under a minute. You get a score out of 100, estimated FPS in games, a bottleneck check and upgrade tips made for you.
Estimated FPS in games
Core i5-8400Core i9-7940X
155average FPS
154average FPS