Also found out that T5 works with a totally new sample format which formthe same instruments is more then 4 times as large as T4 samples...

Only downside to that, with still only a 1 GB sized free ram for user stuff, it will only support a quarter of the stuff that T4 could hold...

For example there was an expansion pack of 106 MB for T4 that is over 450 MB for T5 when downloaded.