https://www.pcgamer.com/performance-guide-what-you-need-for-60fps-in-assassins-creed-odyssey/

Assassin's Creed Odyssey at ultra quality gives the boot to even high-end PCs.

Assassin's Creed Odyssey is one of the best games in the series, with many improvements to the formula that keep it interesting. It also happens to be one of the most demanding games around when it comes to PC requirements—par for the course for a new Assassin's Creed game. You can certainly play it on a modest system—at 30fps (give or take)—but if you're the type of player that likes to dial up the settings to maximum quality, prepare for some hurt. Even on the burliest hardware around, like Nvidia's new RTX 2080 Ti, you're not going to hit 60fps at 4k, and at 1440p you'll still need an RTX 2080 or RTX 2080 Ti. Yeah.