Comparison
DLSS 5 vs DLSS 4.5
DLSS 4.5 is the immediate shipping-era baseline NVIDIA highlighted in early 2026, while DLSS 5 is the next announced step that pushes DLSS beyond performance into photoreal neural rendering.
Why this is the most useful comparison
For people tracking what changed in 2026, DLSS 4.5 is the right baseline. It is the version NVIDIA talked about immediately before unveiling DLSS 5, and it helps separate normal incremental DLSS progress from the larger shift claimed for DLSS 5.
In simple terms, DLSS 4.5 sounds like the most advanced form of the existing stack, while DLSS 5 sounds like the beginning of a new rendering stage.
What did not reset between generations
NVIDIA still ties DLSS 5 to the same integration framework and still talks about real-time constraints, which implies continuity in how developers adopt it.
That continuity is important. DLSS 5 only matters commercially if it extends the DLSS ecosystem instead of breaking it into a separate experimental branch.