sc94597 said:
DLSS upscaling, ray reconstruction, and DLAA do not "introduce more input lag." Only frame generation increases input latency, and the SW2 doesn't support DLSS FG. |
I would completely agree with that on other systems typically PC but on Switch 2 I think you have to factor in its a system with decent GPU resources but very weak CPU performance and we have seen many Switch 2 games with horrible input lag using DLSS so you can't just use the PC norm for Switch 2. PCs typically have very high CPU performance where DLSS was designed for. Games like Skyrim, Cyberpunk and Street fighter come to mind with DLSS and high input lag. This is why I think Nintendo have set CPU resources far too low on Switch 2 its not a comfortable or well aligned level for the GPU. There is a CPU cost for DLSS and on a PC that is insignificant but on Switch 2 it is fairly high. The display panel introduces a lot of lag in itself too so for portable mode its a bigger problem. There was a report before Switch 2 release that portable mode the CPU ran at 1.1Ghz and docked mode 1Ghz which seemed very strange but maybe that really is a thing to help compensate for the very slow panel and lack of overdrive. I mean Codemasters are experts at DLSS and have supported it on their games from the very beginning (F1 2020) but on Switch 2 they don't use it. You don't make decisions like that without a reason. At t he end of the day every bit of data I have read shows the Switch 2 has low CPU resources without question and I would say most of these Switch 2 issues are related to that. However don't get me wrong I'm sure the vast majority of Switch 2 games will have enough CPU resources its just when they try to push the system these sort of problems emerge and there will be sacrifices. Skyrim Anniversary Edition first release had input lag up to 240ms are you saying without DLSS that would be 300ms or more? Their fix was mainly turning off Vsync so the frame data was used by the GPU as soon as available. A passmark CPU score of about 2000 has been available to top end PCs as far back as 2006/2007. Even an old i5 from 2015 can achieve about 6000 passmark CPU score. Steam Deck is 9000, PS5 about 16,000.
- CPU Bottlenecks: If your system is heavily CPU-bound (weak CPU, strong-ish GPU), DLSS might not improve frame rates, and consequently, will not reduce input lag, and in some cases, might introduce stutter.
- CPU Bottleneck: If your CPU is too weak to handle the game's logic, DLSS will not help FPS and may slightly increase latency due to the overhead of the upscaling process.
Those warnings above are from PC and what is the lowest PC CPU that you would pair with a Nvidia graphics card with DLSS upscaling? Lets say you have an older PC and just upgraded the GPU for the time being. I would say the absolute minimum would be somewhere around 5000-8000 passmark CPU score. Even 5000 the worst case example is 2.5x the performance of Switch 2 in CPU terms.
Last edited by bonzobanana - on 04 February 2026
