Some things don't make sense.

[eikido]

I have a few things that don't make sense.

My brother gets about 500 mbit uplink and downlink running speedtest.net and also the official speed test service we have in our country with his Samsung S8. He gets 700 mbit downlink and uplink with his MacBook pro. All wireless running a R7000.

How is that possible?

He has a 1000/1000 mbit line, like me.

 

[MichaelCG]

What doesn't make sense? His phone is slightly slower on WiFi than his MacBook?

 

[eikido]

The speeds =|

700 mbit wireless? Thats crazy. And if i check the tests in this site, they show around 250 mbit wireless...

 

[ColinTaylor]

700 mbit wireless? Thats crazy.

No. That's the advertised speed for the R7000 [AC1900 WiFi (600 + 1300 Mbps)].

You don't say what version of the MacBook you have, but my MacBook Pro frequently has a link speed of 1300Mbps because it has 3 internal antennas. So a throughput of ~700Mbps seems reasonable.

https://www.smallnetbuilder.com/wir...st-look-netgear-r7000-a-asus-rt-ac68u?start=2

 

[MichaelCG]

Yep...newer AC devices have the potential to exceed 500Mbps real-world speeds. Your AP and your client all have to support the newer features as well as the RF airspace must be clean'ish.

 

[RMerlin]

My Thinkpad Yoga reaches 550 Mbps with a 2x2, so 700 Mbps for a 3x3 sound about right to me.

 

[pege63]

 

[eikido]

I think the main problem here is that i don't really understand the technology
When you say 2x2 and 3x3 i immediately think MIMO. But the R7000 doesn't support MIMO?
What am i not understanding here? Please enlighten me

Edit:
Maybe it does support MIMO? 3x3 MIMO to be exact which explains everything.
https://wikidevi.com/wiki/Netgear_R7000

 

[pege63]

It is common to see product descriptions with 1x1, 2×2, 3×3 or 4x4.
The first number is the number of transmit antennas while the second number refers to the number of receive antennas.
Which means that it has "1, 2, 3, 4" transmit antennas and "1, 2, 3, 4 receive antennas.

These numbers refer to the number of transmit (Tx) and receive (Rx) radio chains, that are part of the MIMO hardware design.

You can expect more performance from a 4x4, 3×3, over a 2×2, 1x1 for several reasons.
802.11ac, 5GHz:
4x4 provides a maximum throughput is 1.7 Gbps (4 x 433 Mbps)
3x3 provides a maximum throughput is 1.3 Gbps (3 x 433 Mbps)
2x2 provides a maximum throughput is 866 Mbps (2 x 433 Mbps)
Note that the maximum speeds are used for reference purposes.

 

[eikido]

Tack my friend

I guess that R7000 can do 3x3 then.
That's really nice.

 

[pege63]

Yes R7000 is a 3x3 AC Router, 600 Mbps on the 2.4GHz band and 1300 Gbps on the 5GHz band, its a AC1900 Router (600+1300).

 

[eikido]

Oh

I get

Then 4x4 = 1733 mbit (R7800)

I follow the analogy but what are AC3100 routers?
5x5 doesn't exist?

Like the TP-LINK C3150 and ASUS AC3100 (AC88U) are 2167 mbit. How can they be 4x4 and 2167 mbit

 

[pege63]

AC3100 ultimate AC performance : 1000+2167 Mbps
1024QAM (2.4GHz) : up to 1000 Mbps
1024QAM (5GHz) : up to 2167 Mbps

2.4GHz /5GHz Performance Mode requires "x" QAM support on the WiFi client.

The R7800 supports 256 QAM, AC2600 Mbps (800+1733)
4x4 11ac-80 MHz + 2x2-160/80+80 MHz

In order to benefit from QAM technology, the client who connects must also have QAM support.

And to benefit from 160MHz and MU-MIMO features, WiFi clients needs to support and be 160MHz and MU-MIMO capable.

Devices that don't support 1024-QAM, maximum link rates work out to 600 Mbps in 2.4 GHz and 1300 Mbps in 5GHz, thats goes for all this Routers.

 

[avtella]

MIMO simply means multiple in multiple out as in 3x3 = 3 recieve and 3 transmit. MU-MIMO is similar but with the ability to talk to multiple users at the same stime such that if you have a 4x4 router it can talk to two 2x2 clients or three 1x1 clients at the same time allowing for greater speeds when multiple client devices are active.

The R7000 is MIMO, but doesnt support MU-MIMO meaning it can only talk to one client at a time, rotating between clients.

The R7800 is MU-MIMO capable however, assuming you have 2 or more MU-MIMO capable clients, then it would use that feature.

 

[pege63]

And if you dont, it wont.

In order to benefit from Turbo-qam technology, the client who connects must also have Turbo-qam support.

 

[eikido]

Great! Thanks all!
I fully understand MIMO now!

Now i need to learn more about QAM. I don't know what QAM my R7800 has, and what QAM the R7000

 

[pege63]

Both has 256 QAM support.
And this is SU-MIMO VS MU-MIMO