Your power supply is sufficient to power your system with either GPU. The GTX 1060 recommends a minimum of a 400w PSU. https://www.nvidia.com/en-us/geforce/products/10series/geforce-gtx-1060/ That being said, TT doesn’t make the best PSUs. They tend to be average, at best. Good enough for now, but a better quality PSU should be on your list of future upgrades.