Juniper ex4200 specification

I have some existing ex4200s and management just bought some new ex4200s. They would like to replace the old ones with the new ones. I am not sure if it is necessary. The only difference that I see currently is the software image. I am not a Juniper guy, but are there any commands I can use to compare the old one and the new one, like CPU, memory, features, etc... Thanks
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dpk_walConnect With a Mentor Commented:
show chassis hardware
show chassis routing-engine

Above two commands would help you get the exact model numbers for the current and new switches; also some details on total memory, memory/CPU utilization.

If the new switches are indeed EX4200 only; then there is no difference in the models in terms of RAM/CPU; however, if the new switches are EX4300 then there sure are differences.

Please check and update.

Thank you.
leblancAccountingAuthor Commented:
Is there a command to check the number of available memory?
dpk_walConnect With a Mentor Commented:
show chassis routing-engine

shows Total DRAM available to the Routing Engine's processor.
Starting with Junos OS Release 12.3R1, the DRAM field displays both available memory and installed memory.
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