Question : Problem: Cisco thoughput and forwarding rate distributed

Hi Guys, just looking at the Cisco 7604 router specs, can someone give me some in depth explanation for the features

" Total throughput: 320 Gbps

" Up to 144-Mpps forwarding rate distributed

What exactly those figures mean.

Answer : Problem: Cisco thoughput and forwarding rate distributed

you can find your answer below pdf .
http://www.cisco.com/en/US/prod/collateral/routers/ps5855/prod_brochure0900aecd8019dc1f.pdf