With only 8 GB of VRAM, ray tracing is not possible
Resident Evil 4 doesn't want to have an outrageously large amount of graphics card memory, but unashamedly shows when it's not enough: the game crashes without a sound with the error message "Fatal D3D error".
The VRAM hunger increases especially when ray tracing is activated, and 8 GB is simply not enough for otherwise maximized details. Even in Full HD, the GeForce RTX 3060 Ti crashes reproducibly within seconds. If the graphics card only has 8 GB of memory, the texture details have to be reduced or ray tracing switched off. Without the rays, 8 GB is sufficient, at least up to 2,560 × 1,440 – ComputerBase has not tested even higher resolutions.
Not only 8 GB are problematic, graphics cards with only 10 GB of memory also fall into the VRAM trap. The GeForce RTX 3080 in Ultra HD with activated ray tracing does not crash regularly, but it does from time to time. The otherwise decent frame rates don't help here, the texture details have to be reduced on the former high-end graphics card.
From 16 GB there are no problems with the memory, but the editors have not yet tested whether 12 GB is sufficient.
In Ultra HD, the game addresses up to 12.3 GB of memory without ray tracing, and up to 13.4 GB with rays. Purely from the feeling, 12 GB VRAM should be enough, but this can also change with a longer playing time.