It does NAT at 10gbit in hardware. Barely get warm doing so, either.
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oh one other question, i see there is a 4GB ram and a 8GB ram version (interresingly enough the 8GB version is cheaper on amazon...). Are both supported? and any reason to chose one over the other? Wiki and toh only mention the 4GB version.
Thank you,
Ramon
you will need some action on openwrt to use the 8gb fully.
other than that it is just extra memory if you intend to run docker or other stuff on it.
I just want to run it as router, so 4GB should be plenty. So if it just uses 4 out of 8 GB then I dont really care, as long as the standard image supports it without issue?
If it helps at all, here's my edge router right now:
$ free
total used free shared buff/cache available
Mem: 4016308 85464 3821796 30700 109048 3832284
x86, 4GB RAM. dnsmasq is the biggest RAM user at 0.6% of total (adblock with 400k entries), a bunch of luci-app-statistics/collectd mods make up the second tier.
As you can see, 4GB is massive overkill...
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tbh, i took the 8gb because it was like 20eur more...i made already the mistake with pi to have not enough memory to do it twice...
if you ever plan to run some docker with radius or other stuff. you will be happy to have those extra 
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When I use my NanoPi R2S, which has only 1GB ram, I was already able to create LXC container for PiHole running on top without problem, so 4GB is way more than needed for a router purpose device.
Yes, but a 2x10G router with NVMe can also act as a NAS, and for that RAM is always good
ok so i got my R4 and its working great, the only thing: does it support 1508 MTU on the wan interfaces in order to set the pppoe to 1500 MTU? If i use that ping test it seems to work but some websites fail to load (i guess packets get dropped maybe its ipv6 only?)