dual:

- no backplate
- slightly OC-ed iinm
- basic cooling with two fan
- zero decibel feature (low noise)

jetstream:

- better looking
- backplate but bland one iinm
- higher OC
- iinm, more contacts with the copper heatsink
- can be easily OC-ed to Super Jetstream level
- zero decibel
- RGB

judging from reviews, on stock speed, all the aftermarket models of GTX1060 have almost similar fps in most games, with better models like Super Jetstream and Gaming X have better FPS by 1-2 fps more

so if you're not into looks, can get that dual fan model or that mini.