Sai,
Both 460 and 650 supports basic layer 3 features with Edge licenses (static routing/RIP). If you need advanced feature set (OSPF,BGP) you may need to upgrade Adv. Edge or Core license pack. So you can use it as Access or Core switch depends on your network design.
Refer to EXOS 16.1 Feature license document for x460 G1. http://documentation.extremenetworks.com/exos_16.1/ExtremeXOS_Feature_License_Requirements_16.1.pdf