Growing up, I had one of those cheap Pong clones. Graphics don't get much worse than that, but it was at least playable.
In terms of specs, the Nintendo NES was pretty awful. Released the same year as the 520ST and A1000 (in the West), yet just compare those specs. I've never heard any amazing music from the NES. At least there were some very talented composers really pushing the YM chip to the max - despite the YM chip being about comparable to the NES.
I always laugh when I see Americans talking online about how the NES "revolutionized" gaming world-wide. I only knew one person with a NES growing up, and that was pretty late - well into the 16 bit era. The Spectrum, Atari ST and Commodore Amiga were where the gaming action was really at.
And seriously? Playing games with a controller that resembles a pocket calculator? Where's the joystick?