A wattage number is only one part of choosing a safe, compatible computer power supply.
Graphics-card manufacturers commonly publish a suggested total-system PSU capacity for a reference configuration. This is not the same quantity as the card's board power. Compare the stated system recommendation against the PSU's continuous rated wattage and read the vendor's assumptions.
Do not calculate a guaranteed PSU size by simply adding processor TDP to graphics-card power. Power excursions, workloads, ancillary components and product design differ.
Confirm that the selected power supply offers the exact dedicated GPU power connectors required by the particular card model, as well as the motherboard's ATX and EPS CPU connectors. Connection type and cable-routing clearance matter independently of the PSU's wattage.
Only use modular PSU cables approved for that exact power-supply model. Cables from another modular PSU can have different pin wiring even if they physically fit.
A PSU should have suitable protections, vendor support and enough capacity for expected peak usage. Confirm its physical dimensions and your case's mounting area, cable bends, airflow and clearance. An oversized wattage rating does not repair missing connectors or poor PSU quality.
The PC Builder compares the PSU's user-entered rated wattage with the chosen GPU vendor's user-entered system recommendation. That is an initial threshold check, not independent electrical or thermal validation.
For the processor's own published thermal/power information, consult AMD's Ryzen 7 7800X3D specifications and Intel's Core i5-14600K specifications. Confirm actual manufacturer documentation for your selected PSU, GPU and enclosure before purchase.