Well, Far Cry 4 on the PS4 and Xbox One uses "HRAA", which supposedly isn't possible on PC using DX11
http://www.eurogamer.net/articles/digitalfoundry-2014-far-cry-4-face-off
Using similar hardware to PCs is one thing, but there are still differences between their APIs. We normal users don't even know whether today's games are using the higher-level or lower-level APIs.
The 360 could also lose to modest PCs in the beginning. Quake 4 had bad performance on the 360.
Does anyone still remember what kind of PC you needed to outperform the original Xbox?
no PC gamer is using 1.6GHz Jaguar CPUs, so the CPU overhead should be well compensated, the link you posted also shows some advantages for the PC version, and they could have used Mantle (the game developers, not the article)!?
there is a very clear pattern if you look at all the multiplatform games from last year, PCs with regular CPUs and $150 cards are in a good position against the PS4; and DX12 should help in the future;
as for the 360, I think most games were harder to match with a mid range/low end PC back in 2005/2006 than they are now.