RTX 5080 vs RTX 4090: Should You Upgrade in 2026?

The RTX 4090 still leads in raw 4K rasterization by 10–24%, but the RTX 5080 costs $600+ less, runs 90W cooler, and brings DLSS 4 Multi Frame Generation. We break down gaming benchmarks, AI workloads, and the price-to-performance verdict.