Which is lighter? Which is faster?

Which is lighter? Zipp Sub 9 clincher of Zipp 1080 clincher?
Which is faster?

Sub9 only they don’t make a clincher it would have to be a 900 disc, I guess and still faster. Unless they have come out with a sub9 clincher in last year or so.

A Zipp 900 clincher as the same rim shape as a tubular sub 9. I believe they weigh 1219g (according to zipp.com), whereas the 1080 clincher weighs 1225g according to the two websites.

Disc will be faster.