This design actually looks closer to the PowerPC design. Tell the truth, the performance may be better.
Personally, I don't think the nm size matters if the design is still inefficient.
POWER/PowerPC CPUs will slow down with a large workload but will rarely choke out. Try the same with i386/amd64 and your system will lag or stop.
Then there's the memory part. Larger amount of RAM are not necessary if the CPU is more efficient.
Coming back. The design looks good. Maybe if the company moves closer to the older RISC designs and cuts out the bottlenecking i386/amd64 is known for, the architecture will be worth it again.
2.) I think of the nm argument similar to the car size argument.:
A smaller car may be better but nothing has really improved if the engine design remains the same.
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