Table 4: 2D FFT + EAR energy consumption baseline vs optimized (OPSD + tile hopping).


EPP 2D FFT + EAR
Baseline36.9241.2548.35

2D FFT+EAR (Opt.)
Tile-Hopping + OPSD15.8817.0618.11
(Proposed)

Improvement2.3×2.4×2.8×

Energy per point (EPP).