I'm seeing NIDS for 10+Gbit links, DDOS mitigation, cache appliance for web servers, Erlang accelerator, BitTorrent accelerator, and so on. Quite a few possibilities. Also, something like this might be tuned for hardware synthesis, formal verification, or testing given all the resources that requires. Intel has a nice presentation showing what kind of computing resources go into their CPU work:

https://www-ssl.intel.com/content/dam/www/public/us/en/docum...