What FPS will I get in Counter-Strike at 1440p?

At 1440p Ultra native, expect around 0 FPS. With DLSS Quality you can push higher.

Does GeForce RTX 5080 PRIME OC support DLSS or FSR in Counter-Strike?

Counter-Strike does not currently support upscalers.

Yes — the GeForce RTX 5080 PRIME OC runs Counter-Strike at approximately 0 FPS at 1080p Ultra (native, no upscaling).

✕No — Too Weak

Expected: 0 FPS @ 1080p Ultra (native). This GeForce RTX 5080 PRIME OC is currently $1477.71 at Amazon ↗