I recently acquired an AMD Radeon RX 7900 XTX graphics card and I'm looking to upgrade my power supply unit (PSU) to ensure optimal performance and stability. With the card's TDP rated at 355W, I want to make sure I have a reliable and efficient PSU that can handle the power requirements of this high-end GPU.

I've been researching various PSU options, but I'd greatly appreciate input from the community. What wattage should I be targeting for a system running a 7900 XTX alongside a modern CPU like the Intel Core i7-13700K or AMD Ryzen 7 7700X? Are there any specific PSU models or brands that have proven to work well with this graphics card?

Additionally, I'm curious about the importance of PSU efficiency ratings (e.g., 80 PLUS Gold, Platinum) and whether investing in a higher-tier PSU is worth the extra cost. Any insights on cable management, modular vs. non-modular designs, or other factors I should consider when selecting a PSU for my 7900 XTX build would be much appreciated.

Thank you in advance for your recommendations and expertise!