What about colors shown/resolution?
Atari used to brag about how the 5200 was "better than the CV because it was 320 to 256." But what they didn't say was that, while in that mode, the 5200 could only show black and white, with maybe artificial green and purple. So it was the CV that could actually put prettier pictures on the screen.
And, of course, the 7800 could handle much more on-screen movement.
So was this a case of technical superiority, or just that the SMS and NES were utilized more effectively, like the way Opcode can program impossible-seeming games on the CV?