5V * 0.8A = 4 Watts.
Oh not that power... you mean processing power?
The Akiko is shite. Should never have been made. A CD32 with fast memory can do C2P much faster using the CPU (in addition to all other tasks) than using the Akiko
Doom written to use the Akiko would be slower than an A1200 with fast memory and much much slower than an 030. Quake would be impossible. Not enough RAM, not enough CPU power.