Quick glance between Cisco's 9500 and 4500X series fixed core switches
WS-C4500X-F-32SFP+ - Cisco One Catalyst 4500-X Series 4500X-F-32SFP+ 32 x SFP+ Ports 10GBase-X Layer 3 Managed Rack-mountable Back to Front Airflow Gigabit Ethernet Network Switch
Cisco Catalyst 4500-X WS-C4500X-16SFP+ Switch
Cisco Catalyst 4500-X Series Switch for Campus Aggregation
Catalyst 4500 X Switch Series
CISCO C4KX-PWR-750DC-F Catalyst 4500X 750W DC - Alimentation