Sea of Thieves runs beautifully on an RX 7800 XT at 1080p, so hitting 60fps is the floor, not the goal; the card will push far higher. The real task at 1080p is locking a smooth, tear-free 60 rather than finding performance.
Quick Answer
At 1080p on an RX 7800 XT, Sea of Thieves runs well past 60fps, typically 150 to 200fps on the High preset. A 60fps cap is for power saving or sync to a 60Hz panel; for most players, uncap and enjoy the headroom. The card has enormous overhead here.
In-Game Settings For A Clean 1080p Run
Use the High preset, set Shadows to High, Water Detail to High (Sea of Thieves' water is its signature look), and Render Quality to 100 percent. Turn V-Sync off on a high-refresh panel and use Radeon's frame cap instead if you want a 60 or 144 lock. The RX 7800 XT's 16GB VRAM is far more than this game needs at 1080p, so textures can stay maxed with no penalty.
SA Build Context
The RX 7800 XT sits in Evetech's upper-mid GPU tier and is genuine overkill for 1080p Sea of Thieves; it pays off if you also game at 1440p or 4K. Pair it with a Ryzen 5 7600 or better and a 650W 80+ Gold PSU for the ~263W card. Keep AMD's Adrenalin driver current, as Sea of Thieves has received driver-side optimisations that smooth 1% lows.
FAQ
What FPS does the RX 7800 XT get in Sea of Thieves at 1080p?
Roughly 150 to 200fps on the High preset. The card is far stronger than 1080p Sea of Thieves requires, so a 60fps cap is purely optional.
Should I cap Sea of Thieves at 60fps on an RX 7800 XT?
Only if you have a 60Hz panel or want lower power and noise. On a 144Hz or 240Hz monitor, leave it uncapped to enjoy the smoother feel the card easily delivers.
Does Sea of Thieves need a lot of VRAM at 1080p?
No. It uses around 5 to 6GB at 1080p High, well within the RX 7800 XT's 16GB buffer, so textures can stay maxed.
high-refresh panel, skip V-Sync and use a Radeon Chill cap a few frames below your monitor's refresh; it keeps Sea of Thieves tear-free while preserving the RX 7800 XT's low-latency feel.