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 5080 VANGUARD SOC LAUNCH EDITION support DLSS or FSR in Grim Dawn?

Grim Dawn does not currently support upscalers.

Yes — the GeForce RTX 5080 VANGUARD SOC LAUNCH EDITION runs Grim Dawn at approximately 221 FPS at 1080p Ultra (native, no upscaling).

✓Yes — Excellent

Expected: 221 FPS @ 1080p Ultra (native). This GeForce RTX 5080 VANGUARD SOC LAUNCH EDITION is currently $2059.00 at Newegg ↗