Different Bios?

[Mr_Oraculus]

I picked up some new XFX 6800 XT cards and noticed they came with different bios. One card had the same bios as my previous two cards, and one had a completely different bios. I’ve listed the details on the cards, bios, and my related questions below. Thanks!

Here are the card and their bios:

XFX 6800 XT (3 cards) – 113-5N21XT_200801 bios

• These 3 cards seem to be performing better than the other card
• I noticed that this bios is newer, being built on 05/31/2021 and also shows as an unverified file on the site Tech Power Up
  • VGA Bios Collection: XFX RX 6800 XT 16 GB | TechPowerUp

XFX 6800 XT (1 card) – 113-68XB6SSE1-C01 bios

• This card does not perform as well as the other 3
• I noticed this bios is older, being built on 11/11/2020 and shows as a verified file on the site Tech Power Up
  • VGA Bios Collection: XFX RX 6800 XT 16 GB | TechPowerUp

Here are my questions:

• Why would these card, all purchased as new in box, come with different bios?
• Is it worth flashing the newer bios of the 3 higher performing cards to the card with the older bios that isn’t performing as well?

Thanks for the input!

[rkulov]

as far as i see in techpowerup, the difference is only in the power limit, the older has 255 while the newer has 281 watts. all others, temps , voltages and the memory is the same. they should be using Samsung memory. you can try to flash the other bios but always back up the originals in case if something gone wrong. is it a big difference between the cards?