Research Article
Power and Area Efficient Cascaded Effectless GDI Approximate Adder for Accelerating Multimedia Applications Using Deep Learning Model
Table 5
Comparison of various 16-bit adder configurations in terms of transistor count and power dissipation.
| | Sl. no. | Type | 16-bit adder configurations | Count of adder cells and transistors | Multiplexers | Total (1) + (2) | Power dissipation (mW) | | Accurate (8-bit MSB part) | Inaccurate (8-bit LSB part) | Accurate (8-bit MSB part) | Inaccurate (8-bit LSB part) | Total no. of transistors (1) | No. of 2 : 1 MUX | Total no. of transistors (2) |
| | 1 | GDI-CMBAI | Common Design 1 (CSLA) | Common Design 1 | 16 | 8 | 432 | 10 | 60 | 492 | 24.8 | | 2 | GDI-CMBAII | Common Design 1 (CSLA) | Common Design 2 | 16 | 8 | 528 | 10 | 60 | 588 | 74.4 | | 3 | GDI-CMBAIII | Common Design 1 (CSLA) | Common Design 3 | 16 | 8 | 552 | 10 | 60 | 612 | 121.4 | | 4 | GDI-AMBAI | Common Design 1 (CSLA) | AFA Design 1 | 16 | 8 | 400 | 10 | 60 | 460 | 15.95 | | 5 | GDI-AMBAII | Common Design 1 (CSLA) | AFA Design 2 | 16 | 8 | 416 | 10 | 60 | 476 | 14.7 | | 6 | GDI-AMBAIII | Common Design 1 (CSLA) | AFA Design 3 | 16 | 8 | 456 | 10 | 60 | 516 | 16.54 | | 7 | GDI-HSETAI | Common Design 1 (CSLA) | MFA Design 1 | 16 | 8 | 400 | 10 | 60 | 460 | 14.0 | | 8 | GDI-HSETAII | Common Design 1 (CSLA) | MFA Design 2 | 16 | 8 | 384 | 10 | 60 | 444 | 12.8 | | 9 | (Proposed) GDI-EAHSETAI | Common Design 1 (4-bit CSLA + 4-bit RCA) | EAFA Design 1 | 12 | 8 | 296 | 5 | 30 | 326 | 3.1 | | 10 | (Proposed) GDI-EAHSETAII | Common Design 1 (4-bit CSLA + 4-bit RCA) | EAFA Design 2 | 12 | 8 | 264 | 5 | 30 | 294 | 2.9 |
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