1400x576
Yeah... and what did you do with this resolution since it was so slow it couldn't be usable... Not to mention about the fact there's no monitor to handle it, and it sucks as a resolution... much like 640x200 2:1 aspect. It's true AGA offered higher resolutions but most of them were completely unusable because too slow or of a bad aspect ratio... And if you want VGA display, it's even slower.
The Falcon had truecolor (yeah, not blurry ham8, but true thousand of colors mode) chunky modes.
The DSP blows away the 7 years old Paula. You could easily play MP3 with it... which required a 040 or even 060 with the A1200.
Plus it had a MMU and FPU socket which isn't present on the A1200.
If you add memory and/or accelerator, some kind of graphics card, a sound card,... you end up with something very expensive when compared with the Falcon.
And yes, even the A4000 can't compete with the 16bit truecolor mode and the DSP. It is has of course much more horsepower, is expandable... but out of the box, it's quite unusable too.