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Hi,
I want to buy RX 570 with dual bios is there a list or something where I can find which cards have dual bios? I know Sapphire Nitro+ has it and Pulse doesn't have. Do you know other cards with dual bios? Thanks.

Pulse OC has Dual Bios

I have 6x 570 pulse OC and none of them have dual bios

Are you sure?
I was looking on youtube unboxing and there is no switch on Pulse OC. Nitro+ has it.
The RX 5xx series is still unavailable in Czech Republic, only some of them are in stocks. So price are higher, Nitro+ 4GB cost same as ASUS RX 480 Dual 4GB I'm not sure if it worth to buy 570 over 480. I read that Asus RX 480 dual isn't good in overcloking and doesn't have dual bios.
Is it worth to buy RX 5xx series? The RX 470 cost more than RX 570 here. What brand can you recommend me please? Thanks.

powecolor arx and xFX 580 has dual bios

I have the XFX RX 580 GTR black edition. There is a tiny switch next to the 8 pin, but from my understanding that is for different fan profiles.
Is there a different way i can see that it is dual bios?

I also have the same card as you and would like to know the answer to that also.  but nothing is listed
anywhere? ???

How many mh?

If you check the manufacturer's website for that specific model they should make mention of what that switch is for. Sometimes it might be etched into the PCB next to the switch so it can be really hard to read if unless the light is angled just right.

There is nothing clear on dual bios cards...
Not even Sapphire lists that info on sites. It says just UEFI Bios.
http://www.sapphiretech.com/productdetial.asp?pid=C5DD46BD-9FCE-440C-9760-454DF0CAFC0B&lang=eng (http://www.sapphiretech.com/productdetial.asp?pid=C5DD46BD-9FCE-440C-9760-454DF0CAFC0B&lang=eng)
At least on the Nitro+ series sites they say Dual UEFI BIOS
http://sapphirenitro.sapphiretech.com/en/570-4.html#specifications (http://sapphirenitro.sapphiretech.com/en/570-4.html#specifications)
Pulse doesn't have such a sites...
Other brands have same useless info.

The good news is the XFX RX 580 GTR black edition does have the Samsung memory and full bandwidth. Still no specifics on it having a dual bios or not. Perhaps that is what the fan profiles bios switch is for? Lack of manufacturing info on these 5XX's is disappointing, heck i didn't even get a owners manual with this card like i did with the reference 480's.

Yeah that's really bad.
In CZ they only have the cheapest and the most expensive cards. The XFX black edition cost here 320 bucks... Only reasonably priced RX 580 4GB here are Gigabyte Gaming, MSI Armor and Sapphire Pulse... for about 240. Any idea which one is better? Does Pulse use same memory as Nitro+?