99.999999% people are using those soap boxes called routerboards, hoping for and dreaming about 600Mbps+ wireless performance. That's the reality.
You would have hard time trying to find people on x86 platforms. Unfortunately there is not too much to rely on other people and I can't advice you, too, because I haven't come across the particular 10Gbit you mention. That leaves you basically the only possibility which becomes necessity : test it yourself. That's what I have been always doing and that's the only thing you can rely on.
Do you already have the card or you just planned to buy it ? If you have it, it is quicker to install Mikrotik latest version and try yourself than waiting two days for somebody to reply with as helpless contribution as I did right now.