The Guru of 3D published a review on the Seasonic Vertex GX-1000 - 1000W ATX 3.0 PSU
A quote from the article:
Today we’re putting the new Seasonic Vertex GX-1000W power supply on our test bench. The company is mainly known for its PSUs (like the Prime series, which we checked, for example, the TX-1300) and the chassis (like the Arch Q503 or Syncro Q704). The Vertex series is a new one from Seasonic that was launched in September 2022, but with the availability specified for January 2023. It consists of 80 Plus Platinum or Gold efficiency and has the following wattage variants: 1200 W, 1000 W (which we’re checking in an 80 Plus version), 850 W, and 750 W.Seasonic Vertex GX-1000 - 1000W ATX 3.0 PSU Review