Question Sapphire Pulse 6650 XT - - - weird fan noise + high junction ?

1200mV isn't default its just the maximum allowed to the gpu when you dont undervolt, hence it rarely and very momentarily hits that number.

I have the same GPU and it hits high junction temps stock as well I have it undervolted to 1075mV and now it doesn't go above 90C in pretty much any game and that is fine for junction. I'm not sure if its a defect but a lot of pulse cards are hitting high junction temps.

Keep in mind that 100C and below junction temps are fine and wont kill your GPU. If you have a bad airflow case, that might be the main cause of this.

I would repaste the GPU, if nothing else works but if at -100mV it stays under 100C Junction then I would live with it because a lot of people on reddit have been talking about their pulse cards having similar temps and I've even seen people repaste theirs and see little to no improvement.