Uploaded January 2026 | Updated September 2026, 2 weeks ago

---

Many thanks to FlexiSpot for sponsoring this video and upgrading John's workstation! Use the links below and leave a note saying "Digital Foundry" at checkout and use the code ''YTE7P50'' to get EXTRA $50 off on the E7 Plus/E7 Pro/E7L standing desk.
USA: bit.ly/49KGeBG
CAN: bit.ly/3ZpAEQ5

Nvidia is at the top of the game when it comes to machine learning-based image reconstruction and with the release of DLSS 4.5, we're looking at its most advanced model yet. We're concentrating on the new performance mode-focused Preset M here, where we find good improvements to a range of scenarios where DLSS 4.0 (Preset K) fell a little short. However, there is work to do: Preset M does seem to have PSSR-like issues with some RT effects.

Go here to check out DF merch! store.digitalfoundry.net

Subscribe for more Digital Foundry: bit.ly/DFSubscribe

00:00:00 Introduction
00:00:39 Sponsored by FlexiSpot E7 Pro
00:02:30 Does DLSS 4.5 Preset M improve on DLSS 4.0 Preset K regressions?
00:05:45 Does Preset M improve areas where DLSS 4.0 did not improve?
00:08:52 General IQ improvements
00:13:03 Ray Tracing Regressions?
00:19:43 Is Preset M "too sharp" or "too bright"?
00:27:34 Preset M Performance and Recommendations
00:32:30 Outro