Apparently on 450k annually + incentives before he signed that 8 year contract. I doubt the new one is likely to be significantly higher considering Ashley has been bitten twice over compensations to Keegan and Allardyce. For the same reason, it will be hard to believe Ashley does not hold the cards with that contract; he'll likely have an escape clause of sorts with minimal compensation should he sack Pardew. If Pardew was so sure of a fat paycheck when he walks, he would not have been sweating like a pig before the January signings and results were poor.
http://www.mirror.co.uk/sport/football/news/alan-pardew-pay-off-from-newcastle-united-1503097
One year's compensation according to article. Less than a mil?