elbramso
Some KPE cards just s*ck!
Its good to see you got a better card this time.
There is a wide variation in VRAM overclocking ability of KP cards that can cause huge difference in Port Royal scores. There is also a large variation in the actual GPU overclocking ability at the same voltage. This is based on my multiple KP 3090 cards and having to do several RMAs.
For example, I've had KP 3090s that crash and artifact in almost every benchmark with a VRAM OC in PX1 of +1200 to +1250 and others that do +1400 to +1450 completely problem free in every graphics benchmark. I haven't ever had a card that is stable at +1600 MHz VRAM OC in PX1 like some others have had. I've seen videos posted online by other overclockers where they are doing +1600 to +1700 stable VRAM OC in Port Royal with the stock Hybrid cooler.
I've also had variations of 45 MHz in GPU speed at the same voltage between different KP 3090 cards.