Device | Methods |
| Delay in nS |
| |||
4 Bit | 8 Bit | 16 Bit | 32 Bit | 64 Bit | |||
Xilinx Spartan 3e | Urdhva Tiryakbhyam Sutra [2] | 11.412 | 30.628 | 49.413 | 85.359 | 155.364 | |
| Karatsuba Algorithm [3] | 15.231 | 31.029 | 46.811 | 82.834 | 150.922 | |
| Vedic-Karatsuba Algorithm [3] | 10.197 | 18.005 | 27.81 | 49.864 | 92.448 | |
| Karatsuba-Urdhva Multiplier | 15.072 | 18.492 | 26.398 | 42.174 | 87.235 | |
| Proposed Karatsuba-Nikhilam Multiplier | 14.561 | 16.916 | 22.147 | 32.156 | 64.198 | |
Xilinx Spartan 6 | Urdhva Tiryakbhyam Sutra [2] | 9.247 | 26.321 | 49.413 | 77.924 | 142.638 | |
| Karatsuba Algorithm [3] | 10.124 | 28.965 | 46.811 | 74.529 | 138.953 | |
| Vedic-Karatsuba Algorithm [3] | 8.621 | 18.005 | 27.81 | 41.953 | 88.627 | |
| Karatsuba-Urdhva Multiplier | 11.632 | 25.362 | 26.398 | 37.439 | 69.837 | |
| Proposed Karatsuba-Nikhilam Multiplier | 10.564 | 23.624 | 22.147 | 28.634 | 49.391 | |