The below table compares the characteristics of
voltage and power amplifiers:
| Sl.No | Characteristics | Voltage Amplifier | Power Amplifier |
| 1 | Current Gain | High, exceeding 100 | Low 20-50 |
| 2 | Collector Load | High about 10KΩ | Low 5-20Ω |
| 3 | Input Voltage | Low, a few mV | High, 2-4V |
| 4 | Collector Current | Low about 1mA | High exceeding 100mA |
| 5 | Power output | Low | High |
| 6 | Power dissipation capacity | Less than 0.5W | More than 0.5W |
| 7 | Output Impedence | High about 10KΩ | Low about 200Ω |
| 8 | Coupling | Usually RC coupling | Transformer or tuned circuit |
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