Domino 8 vs 7 (new replica-test)

2 domino servers:domino 7.0 running on Suse linux platform.

domino 8.0 running on Suse linux platform.

Workstation:

Lotus Notes Client: 7.0.2 finnish

Both server has database that contains 10000 documents. Databases are identical.

Log details after replication(new replica):

___Time__Minutes___Reads Writes KBytes KBUnComp KBytesComp

7__10:45__10______10000___0___24504____1046____432

8__10:45___3______10000___0____9316___25112___9275

How can this be possible? Kbytes are 24504 vs. 9316

Is domino 8 really doing that good compression?