Recommend me a wifi-router

Page 2 - Seeking answers? Join the AnandTech community: where nearly half-a-million members share solutions and discuss the latest tech.

Hans Gruber

Platinum Member
Dec 23, 2006
2,524
1,360
136
I thought wifi was inherently half-duplex. Not true with multi-stream or MIMO wireless?
There are two wireless AC card (laptops) formats. One is half duplex cards and the other full duplex in the mini PCI-E cards. I have a few half duplex wireless AC cards and my max down speed was 270mbps which is beyond my ethernet max usually in the 240mbps range. The wireless AC PCI-E cards can easily max out your bandwidth without any problem. In 5ghz standard wireless my 1750mbps wireless AC router maxes out on standard 5ghz non wifi AC at 150-200mbps. With a full duplex wireless PCI card you should be able to get 500mbps or more down. It all shares the same bands as 2.4ghz and 5ghz but nobody has wireless AC which is like what the 5ghz band used to be like a few years ago. The max speed I have ever got on 2.4ghz is 70-80mbps.

When you sling files through your router from computer to computer usually a max of 30mb is what you will get unless you have SSD's or a fancy NAS. Even with ethernet I have not seen speeds about 30mb which is 240mbps between computers.
 

Hans Gruber

Platinum Member
Dec 23, 2006
2,524
1,360
136
when you say "full-duplex", do you really mean "dual-band"?
What I mean is the wifi PCI-e card is either half duplex or full duplex. Half speed vs. full speed. The routers are not half or full duplex. The question is always how much speed can they handle and do cards exist to take advantage of the full power of wireless AC routers. One thing is certain. If the router is gigabit ports as most are in the wireless AC market, the max theoretical speed is 1000mbps.

If anybody can find real world performance of wireless AC, I am all ears for that. The platform for wireless AC has been ever changing and if you ask me it's been in beta testing for close to 5 years.

I have intel wireless AC PCI-E cards and they are half speed cards. If someone has gigabit internet connection I would suggest getting half speed and full speed cards. Often referred to as half duplex and full duplex wifi cards.

I have a netgear R6400 router rated at 1750mbps.
real world performance based on my testing under optimal conditions
2.4ghz internet max speed 70-80mbps
5ghz internet max speed 130-200mbps
wireless AC 240mbps+

I should point out I have a 55" LED 4K with wireless AC wifi built in. It has never skipped a beat or dropped a connection when connected to wireless AC through my router watching Amazon Prime or Netflix.
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,553
430
126
The max theoretical speed is 1000mbps it is Not the Speed of the Wireless it is just the inner frequency of the chipset.

The chispset per-se can not generate Functional Signal. I.e., No matter what Wireless units.can achieve the rating of the chipset as the connection Speed..

In addition, almost all the sub $500 Wireless "gizmos" are using a single Radio. I.e., the Transmission and Receiving is done by one unit that has to Flip-Flop between Receive and Transmit thus reducing the functional output by Half.
.
.
 

VirtualLarry

No Lifer
Aug 25, 2001
56,587
10,225
126
In addition, almost all the sub $500 Wireless "gizmos" are using a single Radio. I.e., the Transmission and Receiving is done by one unit that has to Flip-Flop between Receive and Transmit thus reducing the functional output by Half.
.
And this... is what is referred to as "Half Duplex". I'm not aware of wireless routers and NICs, that can do any sort of true full-duplex wireless, though I suppose of both of them supported multiple frequency bands, it would be possible. I'm just not aware of implementations that do this. (MU-MIMO excluded, as I am not that familiar, perhaps it can do this.)
 

JackMDS

Elite Member
Super Moderator
Oct 25, 1999
29,553
430
126
In addition Marketing "Trickery" adds to the confusion.

They call it (as an example) AC1750 but they do not clarify that is the combined Bandwidth available to use by few Wireless Clients, and while using one client it can not use the whole 1750.

Lucky for me I was inducted into Science and Electronics before marketing became the main source of common Knowledge.o_O



:cool:
 
Feb 25, 2011
16,994
1,622
126
In addition Marketing "Trickery" adds to the confusion.

They call it (as an example) AC1750 but they do not clarify that is the combined Bandwidth available to use by few Wireless Client, and while using one client it can not use the whole 1750.

Lucky for me I was inducted into Science and Electronics before marketing became the main source of common Knowledge.o_O



:cool:
Agreed. Marketing sucks. All the intentionally obfuscated disinformation out there makes me get all stabby with a side-order of Milton.

cheer-up.jpg