Question Does the logo on fans matter?

[jaymes2015]

I owned these two Powercolor RX 580 Red Devil. I just noticed yesterday their logo on the fans are different. Are they supposed to be same? Or why they are different?

 

[jay32267]

I owned these two Powercolor RX 580 Red Devil. I just noticed yesterday their logo on the fans are different. Are they supposed to be same? Or why they are different?

Are there any specifications or ratings printed on the fans?
I would check those.

 

[jaymes2015]

Are there any specifications or ratings printed on the fans?
I would check those.

Just looking at the fans, there’s nothing. I would assumed I may have to remove the fans to see if there’s any writings under the fans?