Impossible to say. It depends primarily on (1) how much free space is available in each page already, (2) as noted already, how many affected indexes there are on each table.
If the first table had no free space per page, and the second table had a lot, the first would likely be more overhead.
SQL DBA,SQL Server MVP(07, 08, 09) Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial:
If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them.