I intended to replace my RB4011 with x86 routers, it's little bit tretched when handling 1000M download. 5009 is way too expensive and out of stock most of the time. I started experimenting with the N3160/dual RTL8111H eth.
I installed v7.5 with default router config w/wo fasttrack as the 2nd level router in my home LAN, the result was disappointing. Openspeedtest & iperf in my home LAN can only reach 600Mbps/600Mbps download/upload, cpu reaches 80% for one core.
Then I downgraded it to v6.49.6, with the same configuration, the download/upload speed can easily hit 940Mbps, cpu reaches 80% for one core.
Is there tweaks I can do to boost v7 performance on x86? Or Do I have to get a much more powerful CPU to run v7?