In all honesty the Beatles were more radical with their style than the Beach Boys. Like the statement above me the Beatles went away beyond the normal two guitar, bass, drums, and keyboard sound. It sounds like revisionist history but the facts are "Good Vibrations" was finished way after tracks like "Tomorrow Never Knows" and "Eleanor Rigby" was recorded. "Good Vibrations" was finished in October of 1966 and the Beatles tracks was finished in April of 1966 about a half year earlier. The Beach Boys were more like "Baroque Pop rather than the psychedelic experimental nature of the Beatles songs.
"Tomorrow Never Knows" has pre-recorded loops, and drones from Indian instruments, Norwegian Wood" would include modes like Mixolydian and Dorian Modes in one song. "Love You To" is clearly based on Indian modal practice: the tamboura drones sa and pa (tonic and dominant notes of the mode), the tabla sets forth a sixteen-beat tala (rhythm), the introductory improvisation in the alap follows Indian melodic practice, and as Harrison stated, he was trying to express himself in Hindu terms. "I'm Only Sleeping" has backward guitar solos, "I Want To Tell You" with it's flat 9th dissonance is derived from diminished harmony actually a few of the Beatles tracks combines dissonance with a keen sense of melodies in which "Strawberry Fields Forever" takes that to great lengths.
This was a new turn for the Beatles and for rock music in general and we have not go to Pepper yet.