A major difference is that Blindsight is actually readable and enjoyable. Also, vampires in space.

I haven't read Accelerando but I found Blindsight really difficult to read and like visualise what is going on.

It felt like he tried to jam way too many story threads into what is a reasonably short book too. The vampires are a good example of that.

Same, it was a slog and difficult to figure out what was going on.

Oof; I loved both books, but Accelerando was much easier to read.

That thing is a bastardization of singularity sky for the masses

Weird. I found Accelerando to be both.

I'm reading it now and am enjoying it!