Examples below:
Win 2008 R2:
Backed up 36 System State components
Processed 17,570,860,665 bytes in 20 minutes and 38 seconds.
Throughput rate: 812 MB/min
Compression Type: Hardware
Win 2008 (not r2):
Backed up 22 System State components
Processed 25,626,984,059 bytes in 37 minutes and 51 seconds.
Throughput rate: 646 MB/min
Compression Type: Hardware
Win 2012 (Midia server as well):
Backed up 26 System State components
Processed 17,672,473,254 bytes in 30 minutes and 49 seconds.
Throughput rate: 547 MB/min
Compression Type: Hardware
This one is for Win 2008 C drive, though in general this server is struggling with slow throughput:
Backed up 321476 files in 32591 directories.
Processed 27,592,152,245 bytes in 34 minutes and 23 seconds.
Throughput rate: 765 MB/min
Compression Type: Hardware