Here is an Apollo forum thread from 2015 showing P96Speed results for 640x480 and 800x600. Note that these are for a very old version of the core and are likely faster now.
According to a poster on that thread the Vampire was 2x the speed of a CV64 except for rectfillpattern.
http://apollo-core.com/knowledge.php?b=2¬e=133&z=5vTxib
