RT in RE4 was extremely light (I saw zero performance difference between RT on and off on my PC). The RT resolution is very low, but the SSR reflections look even blurrier and are often missing, therefore I don't agree that the reflections in RE4R look better without RT.
Here's good comparison:.
Games where RT made a biggest difference in my opinion:
- PT remasters of really old games, for example Quake 2 RTX, Half Life PT, or minecraft RTX.
- The Witcher 3 EE
- AC Shadows.
- GTA5 EE
- Cyberpunk
- Dying Light 2
- Metro Exodus
- F1 2025
- Control
- Alan Wake 2
- Crysis Remastered 1 / 2
My list doesn't take into account the fact that many games always use HW RT (Avatar, SW Outlaws, Doom The Dark Ages, Indiana Jones the Great Circle, Forza Motorsport), or software-based RT (mainly UE5 games) that still make a huge difference. I was impressed even with the low-budget game Robocop: Rogue City. Some UE5 games, like Black Myth: Wukong, have additional RT effects that make even bigger difference. Without UE5 (software based RT) current games would offer flat lighting, especially open world games.
Most games have limited number of RT effects though, but I still noticed even limited RT because I always hated SSR (ugly mirror and water reflection that constantly fade in and out as you move the camera) and cascaded shadow maps (they draw in just in front of you).
For example RE3 remake. There are many reflective surfaces (especially in the last lab level). RT made a very noticeable difference in this game to me even though implementation wasnt the best (low RT resolution).
RT was beneficial to my gaming experience in the vast majority of games I played and I wouldnt want play games without it. 25 years ago DX8 made similar difference (shaders, bumb mapping etc.) and I was also happy playing games with new and amazing looking graphics features.