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Groups > comp.sys.raspberry-pi > #26002
| From | druck <news@druck.org.uk> |
|---|---|
| Newsgroups | comp.sys.raspberry-pi |
| Subject | Re: Inbuilt Wifi |
| Date | 2021-01-21 17:24 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <rucdcj$3tu$1@dont-email.me> (permalink) |
| References | <ruc6c8$8pj$1@dont-email.me> |
On 21/01/2021 15:24, The Natural Philosopher wrote: > For reasons not pertinent to PIs, I started researching wifi > performance, and would like the assembled multitudes to comment on the > correctness, or otherwise of what I have found. > > - All Pis with built-in Wifi use the Broadcomm chip > - This chip is not capable of 5Ghz connectivity > - Nor is it capable of 40Mhz dual channel operation > - ergo it *cannot* connect at *more* than 72Mbps The Pi 3B+ and 4B have 5 GHz WiFi. I think the chips support 40MHz on 2.4GHz, but the driver doesn't. All my 3B+s and 4Bs have Ethernet, so I can't check on the 5GHz performance, but the 3Bs and Zeros scattered around the house do about 20-30Mbps up and down, as do the 2Bs with USB WiFi adaptors. Just failed over a 4B on to 5GHz WiFi, its fairly close to the router but only gives 88.6Mbs down, and 75.3 Mbs up. So I recommend if you need speed, use Ethernet. Up to the 3B you should get 96/92Mbps, the 3B+ does 327/270Mbs, and the 937/832MBps down/up. ---druck
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Inbuilt Wifi The Natural Philosopher <tnp@invalid.invalid> - 2021-01-21 15:24 +0000
Re: Inbuilt Wifi Chris Elvidge <chris@mshome.net> - 2021-01-21 15:39 +0000
Re: Inbuilt Wifi The Natural Philosopher <tnp@invalid.invalid> - 2021-01-21 15:45 +0000
Re: Inbuilt Wifi Chris Elvidge <chris@mshome.net> - 2021-01-21 17:30 +0000
Re: Inbuilt Wifi Theo <theom+news@chiark.greenend.org.uk> - 2021-01-21 22:52 +0000
Re: Inbuilt Wifi druck <news@druck.org.uk> - 2021-01-21 17:24 +0000
Re: Inbuilt Wifi A. Dumas <alexandre@dumas.fr.invalid> - 2021-01-21 17:42 +0000
Re: Inbuilt Wifi Richard Jones <news@rgjones.screaming.net> - 2021-01-21 18:15 +0000
Re: Inbuilt Wifi alister <alister.ware@ntlworld.com> - 2021-01-21 18:09 +0000
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:12 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:16 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:27 +0100
Re: Inbuilt Wifi "A. Dumas" <alexandre@dumas.fr.invalid> - 2021-01-25 09:39 +0100
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