Yepper... well. Maybe a duo or quad core cpu with LOTS of memory would also be enough.
IF they skimp on this they will have ongoing problems to try to program their way out of.
I own a high end piece of HAM Radio equipment that is software defined. They mis-judged (or went cheap?) on the cpu and memory and have been trying to program their way out of it since... They have to steel cycles from one thing... then it screws up something else. so on & so on.