This is probably very relevant for a lot of you guys.
OverclockersClub have overclocked all three cards and put them against each other in 10 games.
GTX 980Ti: 1455MHz
GTX 1070: 2050MHz
GTX 1080: 2050MHz
All three cards can probably be overclocked additional 50MHz, but it depends a bit on the cards. GTX 1080 and GTX 1070 are Founder`s Edition while the GTX 980Ti are also Reference model.
I`m not gonna link all results here, but post a couple few. Rest are in the link.
Summary:





http://www.overclockersclub.com/reviews/nvidia_geforcegtx_1070_overclocking/
OverclockersClub have overclocked all three cards and put them against each other in 10 games.
GTX 980Ti: 1455MHz
GTX 1070: 2050MHz
GTX 1080: 2050MHz
All three cards can probably be overclocked additional 50MHz, but it depends a bit on the cards. GTX 1080 and GTX 1070 are Founder`s Edition while the GTX 980Ti are also Reference model.
I`m not gonna link all results here, but post a couple few. Rest are in the link.
Summary:
1440P overclocked:
GTX 1070 is 3% faster than GTX 980Ti
GTX 1080 is 23% faster than GTX 980Ti
GTX 1070 is 27% faster than R9 Fury
GTX 1080 is 47% faster than R9 Fury
GTX 1070 is 31% faster than GTX 980
GTX 1080 is 51% faster than GTX 980
GTX 1070 is 3% faster than GTX 980Ti
GTX 1080 is 23% faster than GTX 980Ti
GTX 1070 is 27% faster than R9 Fury
GTX 1080 is 47% faster than R9 Fury
GTX 1070 is 31% faster than GTX 980
GTX 1080 is 51% faster than GTX 980
http://www.overclockersclub.com/reviews/nvidia_geforcegtx_1070_overclocking/