70% compute, 30% algo (give or take 10 percentage points) over the last 25 years. Without serious experiments, have a look at the Stockfish evolution at constant compute. That’s a gain of +700 ELO points over ~8 years (on the high side, historically). For comparison, you gain ~70 ELO per double compute. Over 8 years one has on average gained ~400x compute, yielding +375 ELO. That’s 700:375 ELO for compute:algo
Isn’t that 70:30 algo:compute?
Yes, sorry, I got that the wrong way around. 70%=algo