It makes sense comparing Yamaha RX-V385BL vs Onkyo TX-8020 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Yamaha RX-V385BL has 5.1 versus 2.0 for Onkyo TX-8020. Regarding power, then RX-V385BL has such a W/Ohm ratio - 70/8, 145/6 when TX-8020 has a power of 90/6. The THD is 0.09% for the RX-V385BL but 0.03% for the TX-8020.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-V385BL and 192 KHz/24-bit for the TX-8020. None of the models support Bi-amping. The Onkyo TX-8020 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. None of the competitors supports Auto speaker calibration.
Both models do not have WI-FI support. Only the RX-V385BL has Bluetooth support. Competitors do not have built-in Spotify service. Only the RX-V385BL provides HDMI signal transmission in standby mode. The RX-V385BL can scale the input HDMI signal, unlike the TX-8020. Dolby Vision technology found support only on the RX-V385BL. Only the RX-V385BL supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the RX-V385BL. Of the two receivers in our comparison, HDMI CEC is present in only the RX-V385BL. The TX-8020 has a built-in phono stage for connecting a vinyl player. A voice control is not available. An ECO mode is only available for the RX-V385BL. Unfortunately, the setup assistant is not available in each of the models.
None of the rivals equipped with Dolby Atmos multichannel audio decoder. The receivers do not support the surround sound technology DTS:X.