The X570 is believed to be an in-house design from AMD, rather than a design from ASMedia. PCI Express 4.0 is expected to be one of the new features.
ROG CROSSHAIR VIII FORMULA ROG CROSSHAIR VIII HERO ROG CROSSHAIR VIII HERO (WI-FI) ROG CROSSHAIR VIII IMPACT ROG STRIX X570-E GAMING ROG STRIX X570-F GAMING ROG STRIX X570-I GAMING PRIME X570-P PRIME X570-PRO Pro WS X570-ACE TUF GAMING X570-PLUS (WI-FI) TUF GAMING X570-PLUS