I see your point, you are refering to this extract in the blog:
And there you have it! In a maximum performance setup connecting two hAP AC’s together their maximum transfer rate is about 500Mbit because of CPU limitations. Weirdly enough, the CPU usage between upload or download on an hAP AC shows a very different amount of CPU usage. I’m not sure if this is by design or something in RouterOS causing it.
Ok, that means that with the current software, the hAP AC will never be able to achieve it’s 3×3 AC radio maximum a 1300Mbit link would allow for. Realistically and the highest I’ve ever seen in a review that would result in a transfer of about ~700Mbit / 87,50MB/sec. So the hAP AC is not that far off but still, strictly speaking it is CPU limited.
CPU usage is not enough to elaborate on radio efficiency, this is a wrong methodology.
In WIFI only one equipment is on air at a time. This usually divides performance figures by a factor of two. There could be several equipment on the same channels, we don't know the methodology of the test. Also AP and client need to be at a minimum distance of several meters (they could be too close). Again wireless equipment needs to be tested in a lab in a radio free environment.
Furthermore, we don't know whether the AP is in routing or gateway mode.
I would be very surprised if Mikrotik released an equipment not able to reach the limits of radio.
The blog also gives false information ;
As I stated above, I will be using it mainly in a multiple access-point deployment situation. In such a case, not being able to hit the absolute maximum in performance is compensated by having multiple access-points which can handle clients at the same time literally doubling or tripling your potential throughput.
I know, I know, it doesn’t actually work that way.
To my knowledge, you cannot connect to several APs at the same time; All this is wrong. The writer does not have enough WIFI knowledge to perform a survey.
Let's rank this article : double or triple zero (Europe) / F minus (US)
I saw many references to this article on the web. It could be false information designed to sink Mikritik.
Anyway, I will do my own testing of this equipment under OpenWRT and report.