Difference between WS-C2960X-48TS-L and WS-C2960S-48TS-L

What's the difference between Cisco 2960X 48TS-L and 2960X 48TS-L?

Compared WS-C2960X-48TS-L and WS-C2960S-48TS-L, C2960X is more added with those features:
Dual-core CPU at 600 MHz
Cisco FlexStack-Plus stacking
80 Gbps bandwidth
8-member stack
NetFlow-Lite on all downlink and uplink ports
Switch Hibernation mode integrated with Cisco EnergyWise
Energy-Efficient Ethernet (EEE) downlink ports
Signed Cisco IOS Software images