I would get whichever one is available. If both are available, i would get the 1660supers.
With a motherboard like this:
you could pack 8 of them, remove the fans on the gpu and use 3 120mm fans to push through the heatsink
Just because this motherboard have 8x pcie slots doesn't mean its good for 8 graphic cardsWith a motherboard like this:
you could pack 8 of them, remove the fans on the gpu and use 3 120mm fans to push through the heatsink
1. Graphic cards are of different sizes, they might not sit well side by side, some are giant and some are bulky and fat
2. The space between the slots are not enough, even if you insert slim gpus the heat will be much, the highest I can put on that motherboard is just 4 pieces of graphics card for better air flow and less heat