Netflix 100Gb/s 45% CPU single socket E5
P.S 45% of E5-2697 v4 which is an 18core 2.4ghz.
Nothing beats purpose built from bare metal all the way to the software.
Nothing beats them up-streaming most of the changes. Fun to note he said they were memory bandwidth limited. Darn you quad-channel DDR4! Also mentioned they're working on high performance software and hardware API packet pacing. Help keep down those pesky 40Gb line-rate bursts.