[rt2x00-users] RT5xxx vs RT3xxx

[Helmut Schaa]

On Mon, Mar 19, 2012 at 4:48 PM, Ronald Wahl <ronald.wahl at raritan.com> wrote:
> Hi,
>
> during testing various Ralink WLAN sticks I saw some interesting differences
> between different chipsets. Most notably is that sticks based on RT53xx seem
> to perform better on middle/bad radio conditions than RT30xx/RT33xx based
> devices. The RT3572 (in 2.4GHz band) also performs better than the
> RT30xx/RT33xx. Unfortunately I have no RT55xx based device yet to test with.
>
> In the statistics (via "iw wlan0 station dump") I can see less retries and
> less tx failures. Does anybody of you know if RT53xx/RT3572 contain better
> hardware that is causing this behaviour?

Could also be the BBP and RF initialization that is not 100% correct for some
chipsets ...

> Is there any more info available on the chipset differences beside the
> rather sparse "documentation" on the Ralink homepage?

Not much, the rt2x00 projects has some more specifications but they are not
freely available. You could of course contact Ralink directly for these but they
don't really contain anything that could explain the differences you're seeing.

Helmut