I'm looking to upgrade my pre-built PC that currently has a 500W power supply. It's an HP model, and I'm concerned about compatibility with new graphics cards, specifically from the RTX 50 series. My current setup includes an AMD Ryzen 5 5600G CPU, 32GB of RAM, and an NVIDIA GeForce RTX 3050 OEM card. Google gives me mixed results about the power requirements for different RTX 50 series models, so I'm curious if I can safely upgrade without replacing the power supply. Any insights on this would be greatly appreciated!
5 Answers
Based on some quick checks, it looks like you'd need a better PSU for the RTX 50 series cards. I’d recommend budgeting for a new power supply along with the GPU upgrade to avoid issues later on.
Keep an eye on the power connectors! All RTX 50 series cards will need a dedicated power cable that plugs directly into the card. If your PSU has an 8-pin connector, you might be able to use a 5050, but anything higher is pushing it.
You could consider the RTX 5050 since it's the least demanding at 130W, but to be safe, check that your PSU can provide enough power on the 12V rail. Many OEM PSUs can’t deliver their rated wattage reliably.
Generally, a 500W PSU isn't enough for most of the RTX 50 series cards. For example, while the RTX 5050 might squeak by, the higher-end models like the 5090 definitely require more juice. Plus, HP's pre-built PSUs can be of lower quality, which is another red flag. Could you possibly upgrade the PSU?
The specific RTX card matters more than the series name. For instance, a 5090 definitely won't work with a 500W PSU, but a 5050 should be fine if it has the right power connectors. Make sure to check which model you're targeting!

Thanks for the tip! I will definitely check the PSU ratings to see what it can effectively deliver.