What's wrong, revanchrist? I didn't fully explain my thought or you're just happy to see me still around?
Haswell's ability to memory scale has been duly noted. And it shouldn't be ignored that, even if you're not using the integrated graphics, you still gain in other areas, performance wise.
http://www.tomshardware.com/reviews/memory-scaling-gaming-haswell-richland,3593-17.html
http://www.anandtech.com/show/7364/memory-scaling-on-haswell
And if you can prove otherwise, please share.