Hi Carlos,
The 3400 has the following:
Processor XLR 516 (revision C4) with 1255M bytes of memory.
32K bytes of non-volatile configuration memory.
512M bytes of Supervisor Card System flash (model=CF 512MB).
The XLR 516 is a broadcom chip : https://www.broadcom.com/products/enterprise-and-network-processors/processors/xlr500-series
The only quick search about the 7030 gave this :
With a new central processor employing eight CPU cores and four virtual cores, the 7XXX series supports over 32,000 wireless devices and performs stateful firewall policy enforcement at speeds up to 40 Gbps – plenty of capacity for BYOD and 802.11ac devices.
Cheers
Frank