GPU memory and render resources

Open Tools -> Render Resource Viewer. It is a snapshot taken when opened; press Refresh for a new snapshot. Sort/filter by size, type, owner, resident, streaming, transient, and other flags.

Audit

1. Record platform GPU-memory budget and current resident/allocated metrics.
2. Capture the representative map/camera after expected streaming settles.
3. Sort the largest resources and map each to an owning asset/LOD.
4. Separate persistent/resident allocations from transient aliased render-graph resources.
5. Compare before/after at the same location and streaming state.

Common actions:

• reduce texture resolution/format or correct texture groups/mips;
• correct non-streaming or always-resident resources that do not require it;
• reduce oversized render targets, history buffers, shadow pools, or feature buffers only after identifying their owner and quality effect;
• review Nanite streaming pool versus cache-thrashing tradeoff;
• remove duplicate/unused assets and unexpectedly loaded references;
• set per-platform LOD/texture/device-profile limits.

GPU resource allocation is not the same as process RAM, package size, or streaming pool occupancy. Track each budget with the appropriate tool and avoid summing overlapping categories.