i got this Gainward Gtx 1070 and i noticed that the fins on the cooler are parallel to the main board unlike phoenix version where fins are perpendicular. I am guessing this allows air better exiting the case oppose when fins are other scenario. although phoenix is beefier and thus better.
check these photos as comparison.
so i got an idea to buy exhaust coller for laptop to pull air out, as the hot air is not blown out like with reference blower cooler from nvidia.
i ordered this from ebay as it seem mounting mechanism can attach in the rear of the card. did not yet receive it, will post results when it arives.