DSP · Digital Signal Processor
In optics: the retimer/equalizer chip inside a pluggable transceiver that recovers the signal — the main power consumer that LPO and CPO designs remove.
Context: Parts 7, 8
Current numbers
~15–17 W800G DSP pluggable module power (DR4 / 2×FR4), SemiAnalysis January 2026
~30W → ~9WPer-1.6 Tb/s interface power, pluggable DSP vs co-packaged optics — ~3.3× from the rounded endpoints; NVIDIA separately claims 3.5× efficiency and 10× resiliency