I wouldn’t read to much into the voltage reading. I’m sure that was set to 1250mv but hwinfo had a known issue back then reading correctly until newer versions got released to fix it.
And yeah, If you look at rig in sig, you can see the custom loop on the gpu. Ive a 360mm predator with 6 vardars in push/pull so it gets tons of cooling potential. When I game I run them at 1200rpm, when I bench I run them at 1800rpm, bloody noisy that though. I very rarely see my core or hbm temps push past 40c when I game. Like I said start of page, im happy with 1700/1100 with real low voltage and real low temps.
Anything over 26k is a monster GFX Score to be fair mate.
Even if the voltage reading might have been incorrect, to get that clockspeed is brilliant silicon. And Yeah that's some nice cooling, temps like that and little cooling noise is my preference too.