This is our result with RB450G:
Code:
Firewall Conntrack Mode 64 byte packets 512 byte packets 1500 byte packets
N/A Off Routing 92000 91000 77000
N/A On Routing 74000 70700 64000
Off Off Rstp-bridge 128500 120500 83200
On Off Rstp-bridge 85000 79500 68500
On On Rstp-bridge 61000 61000 55500
(these pps results translate to ~40-85Mbps for 64Byte packets)