Spent awhile digesting those links and the article. Things certainly just got complicated. The 750K is a little slower in CPU bound games, but when GPU limited it keeps up with the G870. I think (my own personal opinion) that the margin is close enough where I'll have to give the nod to AMD for better platform features. Potential overclocking, completely modern CPU instruction set (Pentium/Celeron are still limited to SSE4.2) and more SATA3 ports (assuming H61/B75). If you plan on upgrading (i.e. only changing CPU and not change CPU/MB/RAM anyway) then the nod goes to Intel as you can drop in an i5 in the future.
The real question here is
how much performance you lose, if you pair a 750K with a real budget board, slower RAM and lower performance GPU...
For a general purpose budget PC with a discrete GFX card the 750K can actually make sense... welcome back AMD...
(For a general purpose non-gaming PC, I still think an Intel CPU would be a better choice though)
Edit; Forgot. With that unlocked multiplier, it should be a small matter to take that 750K to 5800K (essentially what the 750K is minus the iGPU) performance. And Anands bench section has both the 5800K and a G850...
here is the link...
http://www.anandtech.com/bench/Product/675?vs=404
I'll let you judge for yourselves...