What FPS will I get in Warhammer 40,000: Rogue Trader at 1440p?

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

Does GeForce RTX 5080 AORUS MASTER ICE support DLSS or FSR in Warhammer 40,000: Rogue Trader?

Yes — Warhammer 40,000: Rogue Trader supports dlss2, dlss3, frame_gen_dlss.

Yes — the GeForce RTX 5080 AORUS MASTER ICE runs Warhammer 40,000: Rogue Trader at approximately 240 FPS at 1080p Ultra (native, no upscaling).

✓Yes — Excellent

Expected: 240 FPS @ 1080p Ultra (native). This GeForce RTX 5080 AORUS MASTER ICE is currently $1499.99 at Amazon ↗