GoKawiilNvidia releases RTX Mega Geometry 2.0 SDK with VRAM streaming for ray tracing
Nvidia has released version 2.0 of its RTX Mega Geometry SDK, which now streams high-density mesh geometry into VRAM on demand rather than requiring an entire scene's geometry to fit in memory at once. When a scene exceeds a set VRAM budget, the system reduces detail rather than repeatedly swapping data in and out of memory. The SDK, part of Nvidia's RTX Kit toolset, is available now on GitHub alongside the RTX Kit 2026.3 release.
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By capping VRAM use for geometry, acceleration structures, and textures independently, the update could let ray-traced scenes with far more detail run on cards with limited memory, which may particularly benefit 8GB GPUs where prior versions already showed meaningful savings. Nvidia's Zorah demo, with 1.6 billion unique triangles, suggests the company is positioning this as groundwork for much larger open-world scenes than current hardware typically handles. The timing near Gears of War: E-Day's launch hints developers are already adopting some version of this technology, though Nvidia hasn't specified which version the game uses.
- RTX Mega Geometry 2.0 lets scene detail be bounded by a VRAM budget instead of mesh count.
- Default budgets are 2GB for streamed geometry, 2GB for acceleration structures, and 4GB for textures, all adjustable.
- Prior testing on an RTX 4090 showed about 1GB VRAM saved and a 13% performance gain at 4K with DLSS Quality.
NVIDIA GeForce RTX 4090 Graphics Card — This article highlights RTX Mega Geometry's VRAM savings and ray-tracing performance gains, and the RTX 4090 is exactly the kind of GPU that showcases these features best. With its ray-tracing cores and ample VRAM, it's a great match for upcoming titles like Gears of War: E-Day that leverage this new SDK.
See NVIDIA GeForce RTX 4090 Graphics Card on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: tomshardware.com — Shane Downing, 2026-09-26
Published there as: “Nvidia’s RTX Mega Geometry 2.0 streams ray-tracing geometry into VRAM on demand”
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