Comparing two options: 2 x 16GB sticks versus 4 x 8GB sticks.
Comparing two options: 2 x 16GB sticks versus 4 x 8GB sticks.
Also look at motherboard QVLs to assist in identifying memory ranks. At 3600mhz I haven’t found any 32gb single-rank kits from gskill, and they don’t use micron measurements. Although not certain, I’d be fairly sure about that kit. In the slower speed ranges, you’re more likely to encounter single-rank hynix parts. @Jurrunio perhaps it’s wise to do some research before making a decision. The key point is to check the "memory rank" on the official specs—either dual or single.
It's noted that capacity per memory chip is listed for their high-speed kits, but the product catalog doesn't show a bundle with 16GB sticks and 8GB chips (your "dual rank" case is just a 2x8GB unit). We can eliminate any dual-rank combinations that total 32GB from Crucial.