I’m looking for a router for my 1GB fiber optic. From what I’ve read, some routers don’t offer 1GB due to their features. Which one would offer 1GB without any problems?
https://mikrotik.com/product/hex_s_2025
https://mikrotik.com/product/l009uigs_rm
https://mikrotik.com/product/hap_ax3
for a “normal” use i vote for hAP ax² or hAP ax³
but
if you really want to push to the limit enabling advanced features at 1 gigabit throughput
is better to go with RB5009UG+S+IN but be aware it does NOT include Wi-Fi, only have wired interfaces
you will need a separated device to provide Wireless Access
The only one that surely meets the requirements is the hAP Ax3 .
The hex (refresh or S 2025) might - in some cases and with optimized configuration - get around that.
The L009 won’t.
The thing to look for Is for each device the test results, 512 bytes packets routing with 25 filter rules.
That value Is historically corresponding to real life speed, and It Is slightly pessimistic, i.e. you won’t be able to have the device get slower than that, even with a not too good configuration, while in some cases, with optimized configuration, your real life results might be better than that test results.
Ax3 1145.2 Mbps
Hex S 498.1 Mbps
L009 323.6 Mbps
(soon someone will post about having 900-950 Mbps out of a 1 G ISP connection on their new hexS, no problem)
As chechito just posted, even the Ax3 might not be the “right” choice if there are plans to update the connection to a faster fiber, if you don’t need the device to have wi-fi the 219-139=80 bucks more for a RB5009 would be well spent.
And of course the Ax3 has not a SFP port, though usually ISP’s provide a ONT box, so that you have actually a copper connection anyway.
I don’t need Wi-Fi, but based on the features, the AX3 seems better. The RB5009 is too expensive for me. I wasn’t planning on spending that much.
These numbers are without FastTrack. With FT active hEX S should do 2.5 Gbps as MikroTik claims in their video.
I vote for ax3 or maybe even ax2 perhaps. I know, i know it routes at 912 Mbps but with default fw rule set and fasttrack it should be enough for gigabit connection.
Also it’s smaller, cheaper and it have same number of ports as the ax3.
But one important thing that the ax² misses is an USB port, which results in no possible storage expansion (for containers for example).
If that is important for OP then yes, ax2 is out of the question then. If that isn’t important then ax2 is a great little device to consider.
Concurring with the others. With fasttrack (a software based NAT acceleration that’s usually enabled for normal setups) all three can do 1 Gbps. The L009 barely so.
In terms of performance (slower < faster): L009 < Hex S < ax2 < ax3.
The place of the L009 may be a bit surprising, because cost doesn’t at all align with performance. This is in fact correct, the hex S has almost double the performance.
The other three are all adequate. If cost is the primary factor, the hex S is the winner. Considering the long service life of these devices I think you’d be the happiest long-term with the ax2/ax3 (if/when VPNs come into play, etc.)
Even though you didn’t ask, the ax2 merits inclusion, because it is basically the same router as the ax3 run a lower clock speed (and without the 2.5G port, external antennas and USB port), however I personally think that it has a nice unobtrusive form factor that actually makes a difference in terms of its versatility. In fact when asked for a recommendation for situations similar to yours, this is my first choice.
Sure.
Hmmm.
I will need to see more than one report on the forum by happy customers reaching that kind of speed before believing that.
Call me skeptic as much as you want, but probably your statement should be “softened” like:
[1] We all know what happened to the Sirius Cybernetics Corporation Marketing Department, don’t we?
https://hitchhikers.fandom.com/wiki/Sirius_Cybernetics_Corporation
[2] probably only on wednesday nights, between 1:01 and 3:59, if there is full moon and BOTH the month and the source internet site have no “r” in their name. 
From the 3 devices and when $$$ matters, go hex s 2025.