A new architecture would be refreshing...
5nm is pretty small, i believe the width of an atom is 1nm so things can't really get much smaller than maybe 3nm imo
What i hate most is that since we can't get transistors much smaller we keep adding cores, but in the future who will need 32-64 cores...
Except for some highly parallelizable applications like 3d rendering and video encoding, maybe compression it's a lot of wasted power.
Even a 4-8 cores today sleep most of the time in normal average user usage.
And processor speed have been pretty much stagnant at 3-4ghz for a while now.
Is it me or hard drives seem to suffer from the same syndrome too? I've buy a 2tb 1.5 years ago and it still the same price now...
1nm is still relatively large compared to an atom(http://hypertextbook.com/facts/MichaelPhillip.shtml), and the atom itself is far smaller then the electron cloud surrounding it.
also, you might want to read up on electron spin gates(i forget the exact name, so someone point out). followed by quantum computing. we still have plenty of development room when it comes to making things smaller.
as for the OP, their might be a sliver of chance with intel's stance of soldering their future chips into mb'shttp://semiaccurate.com/2012/11/26/intel-kills-off-the-desktop-pcs-go-with-it/, but you'll likly need serious capital for startup, and to be competitve, you'll likely be selling at a loss until you've got your own manufacturing lineup. Let's also not forget that creating a new architecture means you need to get the windows onboard for making their os available to your potential customers. You might be sitting their willing to say "screw windows", but then you minus as well just give away your chips if you don't get the biggest marketshare on your side.
Alternativly, you might be able to swing a deal with google, and their laptop googlechrome, if you could gain exclusivity to their chrome os being built ontop your processor, you might have a foot in the door that way.