If you're constantly maxing out your VRAM while using Instant-NGP and wondering how do I calculate my VRAM, give this VRAM calculator a try! Please note, the VRAM calculator is trained with an aabb of 16 and was tested on Nvidia's Instant NGP. For most images, the bit-depth will be 24, but I highly recommend checking by checking the file information.

If you're trying to determine how much VRAM you have, simply check your GPU regardless if you are using Windows 10 or Windows 11. If you're wondering how to check vram usage, there are several applications based upon your GPU.

If you're wondering how to increase VRAM, check to make sure you aren't running any intensive programs. Depending on the scene you are trying to NeRF or the amount of photos you have, you might need to downsample your images after using the VRAM Calculator.

VRAM Calculator