Primecoin (XPM)

Technical Information
Release Date: 2013/07/07
Algorithm: Prime (Cunningham chains)
Total supply: Limited by Moore’s Law
Premine: 0
Block Time: 1 minute
Block Reward: 999/Difficulty2
Difficulty Retarget: ?

External Information
Website
Announcement Thread
Forum
Block Explorer
Source

GPU Advantage Calcs
AMD FX-8320 using Rdebourbon’s Beta 4 Primeminer = 0.08 XPM/day
R9 280x (average from this page) = 4.1 XPM/day
Advantage = 51