The Yamaha RX-A880 vs Onkyo TX-NR777 comparison proves that these receivers have many common features.
Considered AV receivers have the same number of channels 7.2. Regarding power, then RX-A880 has such a W/Ohm ratio - 100/8, 160/4 when TX-NR777 has a power of 110/8. The THD is 0.06% for the RX-A880 but 0.08% for the TX-NR777.
Characteristics of digital to analog converter (DAC) are different, Burr-Brown 384 KHz/32-bit for RX-A880 and 384 KHz/32-bit for the TX-NR777. Both the RX-A880 and the TX-NR777 support Bi-amping. The Yamaha RX-A880 can transmit an audio signal directly to the amplifier and bypasses any DSP processing.
WI-FI modules have the same characteristics: 2.4/5GHz. Rivals from our review have Bluetooth support. The Yamaha RX-A880 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver. The RX-A880 can work with the audio stream from Deezer, TIDAL, Pandora, Napster, SiriusXM, Qobuz, and the TX-NR777 can receive a content from TIDAL, Pandora.
Both AV receivers support HDR10 technology (High dynamic range). Compared AV receivers retain the quality of 4K/60Hz signal when transmitting from a source to a TV or projector. HDMI signal transmission in standby mode is implemented in each of the devices. The RX-A880 can scale the input HDMI signal, unlike the TX-NR777. The HDR standard - Dolby Vision is supported by these receivers.
Each receiver has 7/2 HDMI inputs/outputs. The HDMI Audio Return Channel (ARC) feature supports both devices. The HDMI eARC is available only on the RX-A880. The Consumer Electronics Control (CEC) feature is present in most modern AV receivers and the models in our comparison are no exception. Both models support the standard HDCP 2.2. These compared receivers have a built-in phono stage for connecting a vinyl player.
Each of the AV receivers from our review supports 2 Multi-room zones. An ECO mode is only available for the RX-A880. Both RX-A880 and TX-NR777 can be configured using the Setup assistant.
Both devices have support for Dolby Atmos multichannel audio format. The surround sound technology DTS:X is supported by devices under review.