Review New In the Charts: ASUS RT-AX58U

  • ATTENTION! As of November 1, 2020, you are not able to reply to threads 6 months after the thread is opened if there are more than 500 posts in the thread.
    Threads will not be locked, so posts may still be edited by their authors.
    Just start a new thread on the topic to post if you get an error message when trying to reply to a thread.
Product Review


Mr. Easy
Staff member
ASUS' RT-AX58U AX3000 Dual Band WiFi 6 Router has been tested and added to SmallNetBuilder's Wi-Fi Router Charts. Also known as the RT-AX3000 and RT-AX82U, its Broadcom-based design is spec'd for two streams on 2.4 and 5 GHz. However, since the 5 GHz radio is Broadcom's BCM43684 four stream an/ac/ax radio, it appears it support four-stream receive under the hood.

The router didn't do that well in our throughput vs. attenuation tests, however, due to sustained throughput dips on both bands' downlink tests that were observed on multiple test runs. Check the Wi-Fi Router Charts for more details.

ASUS RT-AX58U vs. ASUS RT-AX86U 5 GHz RvR downlink
Last edited:


Asuswrt-Merlin dev
I've always wondered... I've seen a few of your charts that showed a performance dip at a certain attenuation level, followed by an increase at a few dB later. It's pretty significant in this particular case, in the 12-16 dB range. What would explain the fact that it's not linear as intuitively I would expect it to be, and that it can actually go up and down like that? Bad output level tuning in the calibration tables used by the router?


Part of the Furniture
The graph pretty much clearly shows the reasons why I, 1) sold the RT-AX58U, and 2) feel the need to test at 'normal' distances (as 3 to 5 meters) rather than within the same room from pretty much any router newer than the RT-AC68U.


Mr. Easy
Staff member
Is there a basic explanation of what these charts mean physicallly
You can use the throughput vs. attenuation plots to get a basic idea of relative performance.

In the plot below, the X axis can be thought of as distance and the Y axis as throughput/speed. The ASUS is likely to provide more usable signal over distance then the NETGEAR because it maintains higher throughput as signal level drops (attenuation increases).

Actual distance or area covered depends on many factors, most notably walls and other obstructions.

This article provides a good explanation of free-space, i.e. no obstacles loss.
Last edited:

Dell Ray

New Around Here
I'm keeping my AX58U regardless as I have had too many issues with Netgear routers over the years. I avoid them, Lynksys, and TP Link, not to be confused with D-Link, at all cost. I don't do anything intensive anyway and it has all the features I want for a simple home wifi/network setup and didn't cost me a fortune. And I've had good experience with Asus routers and other products in the past. I'm a Dell customer for years, my last 4 laptops and the last gaming desktop I had were Dells but after this newest laptop and the customer service over the course of this past 18 months, I'm looking at an Asus for my next laptop.,

Latest threads

Sign Up For SNBForums Daily Digest

Get an update of what's new every day delivered to your mailbox. Sign up here!