Cisco Switching/Routing :: Correct Number Of Port Asic In WS-X6704-LC

Clarifying whats the correct # of port asic in WS-X6704-LC?According to the following link (Catalyst 6500 Architectural white paper): [URL]
 
"In the WS-X6704-10GE line card, there are two port ASICs each supporting 2 x 10 Gigabit Ethernet ports"
 
 While in the document: Understanding Quality of Service on the Catalyst 6500 Switch: [URL]
 
Table 10.  
WS-X6704
Number of 10 GE Ports 4
- QoS on 10-Gigabit Ethernet Line Cards (WS-X6704-10GE)
 
So whats correct? 4 port asic or 2 port asic?

# Port ASIC’s on the linecard 4
# Physical Ports per Port ASIC 1