Can drinking over a litre of vodka within say 2, 3 or 4 hours do damage to the drinker?

I seldom drink but when I do I go all out. What kinda pressure do I put on my liver, heart etc if I drink say a litre of voka in a few hours. Once did a 750ml in about an hour and was just fine after it, as in not very drunk. I guess different people react differently? Thanks.