That is true.

I am no fan of x86 machines so a lot of stuff I read about it pretty much goes into garbage collection. However, I do recall something about the way the multicore processors are connected can become a bottleneck under heavy load and effect graphics performance due to the PCIe bus not getting the data in a timely fashion.

For me it does not really matter. I don't play graphics intensive games and these old eyes cannot be improved with higher resolutions.

Sometimes more fluff is exactly that, more fluff.

Hexafurcating. Sounds like something sexual that could get you arrested.