AMD Radeon RX 6800 XT

In modern motherboards BIOS, you can find the Above 4G Decoding checkbox, and now the Resizable Bar has appeared next to it. And the Resizable Bar was already well explained by AMD – the processor can directly communicate with the card through a couple of big steps, instead of a million tiny ones.

But what then is Above 4G Decoding and is it equal to Resizable Bar? No article on the internet explains the term precisely, but I will try to make the best explanation possible.

Over a month ago, AMD announced an event where they planned to showcase the new BIG NAVI cards based on the RDNA2 architecture. After the event, the prices and key specs of the Radeon RX 6800, 6800 XT and 6900 XT were revealed, but even now we have more questions than answers.