The first link you gave makes it really clear there is no room for NH-D14, massive coolers in a guidance system anyway so comparing them with the second link you gave is a joke.
The 8086 processor is used to some missles as we speack but is not the same in watts and not the same in mass density not the same in assembly code commands they have build in inside! They have diffrent structure from top to bottom anyway (is a very Big issue) they are RISC processors mostly not CISC, what i mean is the large part of the code is implemanted in hardware for faster output....
Intelligence services are using Cray machines, nothing as you know it in architecture, cooling again.
PS becarefull Jaguarskx fbi will arest us for exporting military details to public hehehehe. Some corporations are not allowed even to shell, export out of country, these chips so nobady be able to hack them,etc