Table 3: Adder comparison for delay, power, and power-delay product.

Delay (ns)Power (mw)PDP (pJ)

32-bit adder (Chirca)4.154.6819.4
32-bit adder (Gayles)4.393.2614.3
Our adder (32-bit)3.44.214.28
Our adder (54-bit)4.38.636.98