RTX 4090 DLSS 5 support and VRAM evidence

Current DLSS 5 status

RTX 4090 DLSS 5 support is unconfirmed as of 2026-10-10. NVIDIA has published no model-specific statement covering Ada Lovelace, so this record stays unconfirmed rather than supported; the announced scope names RTX 50-series Blackwell parts. Card record: 24 GB of VRAM, 16,384 CUDA cores, a 384-bit memory bus, 450 W board power, launched 12 October 2022. Unconfirmed is not a rejection: it means waiting for NVIDIA's own model list, because in-game availability also depends on drivers and per-title implementations.

Unconfirmed by NVIDIA

Model note：Best non-50 series card. DLSS 5 unconfirmed.

Evidence source：https://www.nvidia.com/en-us/geforce/news/dlss-5-3d-guided-neural-rendering/

Independent evidence page; this is not an NVIDIA compatibility guarantee.

Model record

What the source does and does not prove

The linked source does not resolve this model either way, and that is exactly what the record says. “Unconfirmed” is a prompt to wait for an official statement, not a soft rejection.

Hardware specification of RTX 4090

These values come from the published GeForce RTX 40 Series specification table, which aggregates NVIDIA’s own product pages and architecture whitepapers. They describe the card itself; the DLSS 5 status above rests on a different source.

Launch date, die code, core count, bus width and board power are hardware facts. This page publishes no benchmark score and no ranking between models — more CUDA cores is not on its own a statement about DLSS 5 performance.

Vendor cards and laptop versions of RTX 4090 can differ in clocks, memory capacity and power limit, so match the exact variant before you buy.

Hardware specification source：https://en.wikipedia.org/wiki/GeForce_RTX_40_series — “GeForce RTX 40 Series” specification table on Wikipedia, which cites NVIDIA’s product pages and architecture whitepapers. Retrieved 2026-10-10.

Local DLSS5 Studio on RTX 4090

This card carries 24 GB, which clears the published 16 GB recommendation, so both the 1080p and the 4K video lanes are inside the published scope.

This is the one card we have measured ourselves: Windows 11 Pro, RTX 4090 24 GB, driver 591.86 produced 720p → 2560×1440 H.264 in 87.4 s (2.43 s/frame). It is a single-machine result, not a real-time guarantee.

Feature scope for GeForce RTX 40 Series

These rows come from the same data set as the model table. A “yes” describes the published generation-level capability, not a guarantee that a given game enables it on this card.

Nearest models in the same series

• RTX 4080 Super · 16 GB · 10,240 CUDA cores
• RTX 4080 · 16 GB · 9,728 CUDA cores
• RTX 4070 Ti Super · 16 GB · 8,448 CUDA cores
• RTX 4060 Ti · 16 GB · 4,352 CUDA cores

The closest record in this series is RTX 4080 Super (16 GB). Against RTX 4090, RTX 4080 Super launched 15 months later, with 6,144 fewer CUDA cores and 130 W lower board power. Both share the same DLSS 5 status in this data set, and we publish no performance benchmark and no ranking between them.

Before you buy or upgrade

1. Confirm the exact RTX 4090 variant and its VRAM capacity — vendor and laptop versions differ.
2. Open the linked source and check whether your target game and driver publish a compatible path.
3. Treat “unconfirmed” as a prompt to wait for evidence; never infer support from a similar model.

GPU detail FAQ