Absolutely no idea :/. These r9 290's just about do max 120fps. I have no clue about his statement either.
I presume he isn't into high framerate monitors, hence his comment about super competitive freaks. While I wouldn't word it as strongly, I do agree that 60hz 1080p monitors are the new poverty spec. I don't have a high refresh monitor, but I would expect they would appeal to most gamers, not just the CS1.4 crowd. I'd be surprised if you could get 120fps out of the witcher at 1080p on a single card.