‘PS4 will out-power most PCs for years to come’ – Avalanche Studios CTO

[HoloDust]

Though that statement may look like bit of an overstretching, quick look at Steam GPU statistics from February 2013 shows that PS4 will perform better than 92-93% of current PC configs - and this is without putting into equation Windows environment PC games have to deal with.

So, I think this prediction is quite reasonable - PS4 will perform better than most PCs - not all, cause even at launch it will not be able to beat highest-end configs.