Uploaded February 2026 | Updated September 2026, 2 weeks ago

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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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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