Original Knights Corner (effectively a stepping of Larrabee) was ~60 cores, each 4-way threaded. Top-shelf Knights Landing parts were 72 cores.
Rumor was that the P54C design was re-imported back into Intel -- they had contracted out a re-implementation, I assume because they needed a fully synthesizable design rather than being tied to a specific die process. My old team had an FPGA socket 7 module that could run an instantiation of this code around 100MHz.
CPU microcode still exists even if the blobs aren't included. You're just limited to the version that's included with the stepping of your CPU. I believe the management engine (ME) on the chipset is the same way. (On the server side, at least, the chipset won't allow the CPUs to boot without an ME blob.)
Just because your software doesn't include any blobs doesn't mean that there aren't any blobs on the hardware.
Why put a microscope online? How else are you going to do deep packet inspection?
The only real reason x86 hasn't competed with ARM so far in very-low-power is that no one has tried hard enough.
I wonder what VIA would say about that. it seemed like they had the atom-level market carved out before the atom appeared.
Digital circuits are made from analog parts. -- Don Vonada