The MIPS are only a “lookup table” from the year, based on a CPU list. It’s for the reader’s convenience to show the year (linear), plus a rough measure of compute (exponential).
The nodes/s measure has the problem that it is engine-dependent.
The real math was done by scaling down one engine (SF8) by time-per-move, and then calibrating the time to the computers of that era (e.g., a Quad i7 from 2009 has 200x the nodes/s compared to a PII-300 from 1999)
The MIPS are only a “lookup table” from the year, based on a CPU list. It’s for the reader’s convenience to show the year (linear), plus a rough measure of compute (exponential).
The nodes/s measure has the problem that it is engine-dependent.
The real math was done by scaling down one engine (SF8) by time-per-move, and then calibrating the time to the computers of that era (e.g., a Quad i7 from 2009 has 200x the nodes/s compared to a PII-300 from 1999)