I'm considering upgrading my GPU from a 3060 Ti with an 8-pin connector to a 5070 Ti that requires a 12+4 pin connector. I'm not very technical, so I'm unsure if this upgrade is feasible or how to convert my two 8-pin connectors to fit the new GPU without any complications or performance issues. Here's my current build: Intel i5-12600KF, 64GB RAM at 3600 DDR4, MSI Pro Z690A DDR4 motherboard, Cooler Master 500 mesh case, and a 650W Gold PSU.
4 Answers
Honestly, it's wise to get a new PSU rated for ATX 3.x with the upgrade. Even if 650W could technically work, it’s below the recommended 750W. Play it safe to avoid any future problems with the card or cables.
The 5070 Ti includes a 12VHPWR to 3x PCIe 8-pin adapter. Make sure you have at least two separate 8-pin cables from your PSU; the third can be from a pigtail off the second cable. While 650W isn't ideal, if your CPU isn't a power hog (like the i5-12600KF), it might work for now.
The 5070 Ti usually comes with an adapter to convert PCIe to the 12VHPWR connector. However, you'll need to ensure your power supply unit (PSU) is at least 750W. Your 650W might not be enough, so consider upgrading it for better reliability.

So, with my current CPU and 650W PSU, do I really need that extra 8-pin connection, or could I get by with the two I have?