The sizes of the RDF dump have dropped since
wikidata-20160411-all-BETA.ttl.bz2 12-Apr-2016 15:21 7055848308 wikidata-20160411-all-BETA.ttl.gz 12-Apr-2016 12:32 9354187820 wikidata-20160425-all-BETA.ttl.bz2 26-Apr-2016 14:39 6164319357 wikidata-20160425-all-BETA.ttl.gz 26-Apr-2016 12:10 8256496024
And some entities are missing, e.g. Q23760660 doesn't seem to be in the new dump, even though https://www.wikidata.org/wiki/Q23760660 exists.