It makes sense comparing Sony STR-DH790 vs Integra DTM-6 because they both are able to give some premium features.
A significant difference between the receivers in the number of channels, Sony STR-DH790 has 7.2 versus 2.0 for Integra DTM-6. Regarding power, then STR-DH790 has such a W/Ohm ratio - 90/6 when DTM-6 has a power of 80/8. The THD is 0.09% for the STR-DH790 but 0.08% for the DTM-6.
Characteristics of digital to analog converter (DAC) are different, 192 KHz/24-bit for STR-DH790 and AK4438 384 KHz/32-bit for the DTM-6. Only the STR-DH790 supports Bi-amping feature. The Sony STR-DH790 can transmit an audio signal directly to the amplifier and bypasses any DSP processing. Rivals from our review have Bluetooth support. Only the DTM-6 supports Spotify. Only the STR-DH790 provides HDMI signal transmission in standby mode. Both competitors are not able to scale the HDMI signal. Dolby Vision technology found support only on the STR-DH790. Only the STR-DH790 supports HDMI Audio Return Channel (ARC). The HDMI eARC is available only on the STR-DH790. Of the two receivers in our comparison, HDMI CEC is present in only the STR-DH790. The DTM-6 has a built-in phono stage for connecting a vinyl player. An ECO mode is not present in each of the AV receivers. The setup assistant will help you configure Sony STR-DH790.
Only the STR-DH790 has a Dolby Atmos multichannel audio format support. A surround technology DTS:X is supported only by the STR-DH790.