Digital Foundry

DLSS 4.5 Preset L Review: Nvidia's Most Advanced Upscaler Tested At 4K And 1440p (Patreon)

Published:

2026-02-04 16:26:24

Edited:

2026-02-04 16:27:54

Imported:

2026-02

Content

We've already looked at DLSS 4.5 "Preset M", designed for 4K performance mode upscaling - but what about the more demanding "Preset L". This one's even more computationally expensive and best used on 40-series and 50-series GPUs. It's also meant for 3x3 upscaling - 4K from a base 720p, effectively. Alex takes a look at how Preset L compares to Preset M and older DLSS versions, then takes a look at 1440p performance - can upscaling from a base 480p to 1440p benefit older RTX graphics cards?

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DLSS 4.5 Preset L Review: Nvidia's Most Advanced Upscaler Tested At 4K And 1440p

Digital Foundry is now fully independent! Join the DF Supporter Program and support the team: https://bit.ly/3jEGjvx We've already looked at DLSS 4.5 "Preset M", designed for 4K performance mode upscaling - but what about the more demanding "Preset L". This one's even more computationally expensive and best used on 40-series and 50-series GPUs. It's also meant for 3x3 upscaling - 4K from a base 720p, effectively. Alex takes a look at how Preset L compares to Preset M and older DLSS versions, then takes a look at 1440p performance - can upscaling from a base 480p to 1440p benefit older RTX graphics cards? Go here to check out DF merch! https://store.digitalfoundry.net Subscribe for more Digital Foundry: http://bit.ly/DFSubscribe 00:00:00 Introduction 00:00:50 Why is Preset L used for Ultra Performance Mode DLSS? 00:03:15 Does Preset L improve on Preset M? 00:06:26 What is going on with ray tracing noise? 00:09:46 4K Ultra Performance mode behaviour 00:12:48 1440p Ultra Performance mode behaviour 00:16:54 Conclusion