What FPS will I get in Grim Dawn at 1440p?

At 1440p Ultra native, expect around 180 FPS. With DLSS Quality you can push higher.

Does GeForce RTX 5090 AORUS STEALTH ICE support DLSS or FSR in Grim Dawn?

Grim Dawn does not currently support upscalers.

Yes — the GeForce RTX 5090 AORUS STEALTH ICE runs Grim Dawn at approximately 240 FPS at 1080p Ultra (native, no upscaling).

✓Yes — Excellent

Expected: 240 FPS @ 1080p Ultra (native). This GeForce RTX 5090 AORUS STEALTH ICE is currently $3999.99 at Newegg ↗