Intel Core i9-14900K vs Intel Core i5-14600K
TDP, sustained power draw, transient peaks, overclocking power limits, and PSU wattage impact.
| Specification | Intel Core i9-14900K | Intel Core i5-14600K |
|---|---|---|
| Brand | Intel | Intel |
| Socket | LGA1700 | LGA1700 |
| Generation | Raptor Lake Refresh | Raptor Lake Refresh |
| Core Count | 24 | 14 |
| Base TDP (PL1) | 125W | 125W |
| Sustained Power (PL2 / All-Core) | 253W | 181W |
| Transient Peak (×1.20 model) | 304W | 217W |
| Overclockable | ✓ Yes (PL2 > TDP) | ✓ Yes (PL2 > TDP) |
| MSRP | $419 | $249 |
PSU Wattage Impact
Intel Core i9-14900K adds 304W to your system's transient peak (253W sustained × 1.20 transient factor).Intel Core i5-14600K adds 217W (181W × 1.20).
When pairing with a high-end GPU (RTX 5090: 902W transient peak), the CPU transient adds 304W or 217W respectively. Note: Intel Core i9-14900K can draw up to 253W sustained under all-core boost — ensure your motherboard VRM and PSU can support this. Note: Intel Core i5-14600K can draw up to 181W sustained — account for this in your PSU budget.
Frequently Asked Questions
How much power does Intel Core i9-14900K use at full load?
Intel Core i9-14900K draws 253W sustained (PL2 / all-core boost) and can spike to 304W during transient loads. Its base TDP is 125W. For PSU calculations, always use the sustained draw (253W), not the base TDP.
How much power does Intel Core i5-14600K use at full load?
Intel Core i5-14600K draws 181W sustained and peaks at 217W. Base TDP is 125W. Use 181W in your PSU sizing calculation.
Which CPU needs a bigger PSU?
Intel Core i9-14900K requires more PSU wattage with 253W sustained vs 181W. The difference of 72W sustained matters most when combined with a high-end GPU. Use PSUCheck's full PSU calculator to get the total system recommendation.