https://wccftech.com/asus-enables-resizable-bar-amd-smart-access-memory-support-on-intel-z490-h470-b460-motherboards/

ASUS is the first manufacturer to enabled Resizable BAR support or AMD Smart Access Memory technology on the Intel platform. The technology allows the motherboard makers to utilize both Intel 10th Gen Core CPUs and AMD Radeon RX 6000 series graphics cards to deliver higher GPU performance in games and applications.

Over the past few weeks, we have been hearing reports of several Intel 400-series motherboards from ASUS gaining support for the said technology in the latest BETA BIOS release. According to official ASUS representatives, this has now been confirmed. The AMD Smart Access Memory (BAR) support is now accessible on all ASUS Z490, H470 & B460 motherboards.