Hi there,
I noticed some Nvidia cards come in both 2 fan and 3 fan models. Apart from the difference in length, are there any design changes that would impact on hash rate? There seems to be $200-$300 price difference between the two. If no technical difference between the two then buying twin fan model would be the cheapest.
3 fans are normally better at cooling but really its about cooler design more then the number of fans. The 5700xt Gamer X is a two fan cards and its a clear winner vs say the STRIX 5700xt witch is a 3 fan card.