EZMLM versus MailMan

[d-woo]

Hi,

I have an old plesk server (6.0) with 512MB RAM running on

I will be getting a new box this week.

3.0 Ghz Plesk 8 2GB RAM.

Question 1:
How significantly will this increase my EZMLM delivery time?

Currently it takes 10 hours to deliver 400K messages.

Question 2:
In terms of speed of delivery (not ease of use) which is faster, EZMLM or Mailman?

Thanks!