Both men have been preparing for their eagerly-awaited rematch for the WBC world heavyweight crown, scheduled for February 22 in Las Vegas.
The last bout between them was scored a draw, despite Fury seemingly having the upper hand over the champion for much of the fight.
Fury survived a late knockdown when Wilder caught him with a hammer blow in the twelfth round, but is adamant his opponent will be the one tasting canvas this time round.
“I will knock him out in two rounds, in the first I tried to outbox him but I did not win,” Fury told a press conference.
“I am happy he doesn’t think I am a big puncher, the stats don’t lie, he is a far bigger one-hit puncher than me. But I don’t believe anyone can match me for heart and determination.
“Only one of us can win and I am not afraid to go mano-e-mano with the biggest puncher in history.”
Wilder has an unmatched record of scoring 41 knockouts in his 43 professional bouts.
A points win over Bermane Stiverne in 2017, and the draw with Fury remain the only fights he has not won inside the distance.
Fury added: “Even if I hate this guy, I have to respect his record, he has knocked out every opponent apart from me.
“Deontay has amazing power and even when it comes to our verbal blows, I have to respect that.”
Wilder has no concerns about the Gypsy King’s threats, however.
Fury has won 20 of his 30 fights by way of knockout, but Wilder questioned his opponent’s power.
“I don’t think he has the power to knock me out, we have not seen that,” Wilder said. “We have seen a couple of knockouts but nothing as regular as mine.
” Tyson is a skilful fighter but you cannot have it all. I said he had pillow fists at the hands.”