Intel Core i5-14400F vs Intel Core i7-12700K
TDP, sustained power draw, transient peaks, overclocking power limits, and PSU wattage impact.
| Specification | Intel Core i5-14400F | Intel Core i7-12700K |
|---|---|---|
| Brand | Intel | Intel |
| Socket | LGA1700 | LGA1700 |
| Generation | Raptor Lake Refresh | Alder Lake |
| Core Count | 10 | 12 |
| Base TDP (PL1) | 65W | 125W |
| Sustained Power (PL2 / All-Core) | 148W | 190W |
| Transient Peak (×1.20 model) | 178W | 228W |
| Overclockable | ✓ Yes (PL2 > TDP) | ✓ Yes (PL2 > TDP) |
| MSRP | $159 | $199 |
PSU Wattage Impact
Intel Core i5-14400F adds 178W to your system's transient peak (148W sustained × 1.20 transient factor).Intel Core i7-12700K adds 228W (190W × 1.20).
When pairing with a high-end GPU (RTX 5090: 902W transient peak), the CPU transient adds 178W or 228W respectively. Note: Intel Core i5-14400F can draw up to 148W sustained under all-core boost — ensure your motherboard VRM and PSU can support this. Note: Intel Core i7-12700K can draw up to 190W sustained — account for this in your PSU budget.
Frequently Asked Questions
How much power does Intel Core i5-14400F use at full load?
Intel Core i5-14400F draws 148W sustained (PL2 / all-core boost) and can spike to 178W during transient loads. Its base TDP is 65W. For PSU calculations, always use the sustained draw (148W), not the base TDP.
How much power does Intel Core i7-12700K use at full load?
Intel Core i7-12700K draws 190W sustained and peaks at 228W. Base TDP is 125W. Use 190W in your PSU sizing calculation.
Which CPU needs a bigger PSU?
Intel Core i7-12700K requires more PSU wattage with 190W sustained vs 148W. The difference of 42W sustained matters most when combined with a high-end GPU. Use PSUCheck's full PSU calculator to get the total system recommendation.