DLSS 4.5 has proven to be an impressive upgrade over DLSS 4.0 in some areas. Not only does the new model provide superior upscaling quality, but it can also outright improve the visual fidelity of 3D graphics. Building on the latter, Digital Foundry discovered that both DLSS 4.5 Presets M and L are capable of reconstructing ray-traced reflections almost perfectly (depending on the game), as long as in-game denoisers are turned off.
Digital Foundry saw this behavior in Crysis 3 and Silent Hill 2, where DLSS 4.5 produced noticeably better ray-traced image quality with each game's denoiser turned off compared to with them turned on. In Crysis 3, turning off the engine's denoiser resulted in less boiling, and in Silent Hill 2, turning off the denoiser resulted in a night-and-day difference in reflection quality — to the point where there was almost no image blurring or boiling to be seen.
