Toms Hardware checked out the Thermaltake Toughpower GF3 1200W ATX v3.0 Power Supply
A quote from the article:
The Thermaltake Toughpower GF3 1200W, offers ATX v3.0 and PCIe 5.0 support and also tops our performance charts.Thermaltake Toughpower GF3 1200W ATX v3.0 Power Supply Review