Rational4

??

sapphire nitro+ 7900xtx has a tdp of 420w, will it suffice? How much is supported by 6+2pin pcie connectors and assuming I am overclocking it will go beyond 500w and upto 600w. You just mentioned 140w each, this won't be enough to run it.

I am planning to buy Thermaltake GF3 1000w for my 7900 XTX - https://in.thermaltake.com/toughpower-gf3-1000w-gold-tt-premium-edition.html However it comes with only 2 PCIE connectors with four 6+2 connections, but since one 8pin connector can only power up upto 150w I will be needing a third one which isn't included with the power supply. I am afraid to use the 2 extra PCIE connectors attached to the 2 main connectors since it is not recommended at all for the high end GPUs, what should I do in this case? Will the 2 PCIE 6+2pin connectors suffice the 7900XTX included in the box, meaning 1 cable with 1 connection and the 2nd cable with two connections. How much watts these 16 AWG (Intel spec: 18AWG) can bear per cable?

@TT-Jerry So how much watts the new 16 AWG 6+2 pin connectors are carrying individually on the thermaltake GF3 1000w.