DLSS (NVIDIA)
Renders lower res and reconstructs with AI. On RTX 40/50 it often adds big FPS with ray tracing. Check the game page for DLSS support.
What each technology does and how it affects the GPU you pick in the comparator.
FSR (AMD, multi-GPU)
Works on AMD and NVIDIA. FSR 3 frame generation can double FPS in supported titles with slightly more latency. Handy on mid-range GPUs.
Pick a GPU with upscaling
If you play many RT AAA games, favor RTX with DLSS 3/4. On AMD budget, RX 9000 with FSR 4 is competitive. Compare models at /comparar/gpu.