An affordable AV receiver is always a good option to consider, so Marantz SR5012 vs Yamaha RX-V475 comparison definitely makes sense.
A significant difference between the receivers in the number of channels, Marantz SR5012 has 7.2 versus 5.1 for Yamaha RX-V475. Regarding power, then SR5012 has such a W/Ohm ratio - 100/8 when RX-V475 has a power of 80/6. The THD is 0.08% for the SR5012 but 0.09% for the RX-V475.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for SR5012 and Burr-Brown 192 KHz/24-bit for the RX-V475. Only the SR5012 supports Bi-amping feature. Each of the AV receivers can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. The Marantz SR5012 has support for AirPlay, AirPlay 2, and its competitor in our comparison - AirPlay. Spotify can be used on each receiver.
Only the Marantz SR5012 has support for High dynamic range (HDR). 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 SR5012 can scale the input HDMI signal, unlike the RX-V475. Dolby Vision technology found support only on the SR5012.
The Marantz SR5012 has 8/2 HDMI inputs/outputs versus 5/1 HDMI connectors of the Yamaha RX-V475. The HDMI Audio Return Channel (ARC) feature supports both devices. Unfortunately, HDMI eARC is not available on monitored devices. 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. Receivers do not have a built-in phono stage for connecting a vinyl player. It is also worth noting that the ECO mode is presented in each of the receivers. The setup assistant will help you configure Marantz SR5012.
Only the SR5012 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the SR5012.