Nope, that was not a reputed manufacturer's PSU. It has two +12V rails with 19A on both. The combined current will be around the same number. But your CPU+GPU needs more than that. That's what the difference between quality and low quality PSUs. Very good PSUs have 50A and more for 650W rated power supply. I know si much people going over that wattage and failed in their build with numerous crashes and BSODs while using the system.