Running out of VRAM on a Relatively Small Scene

[Adept]

Hi! I have been trying to render a scene that has about 500k tris and 900k disp tris. Every time I hit render, I get a failure due to running out of memory. I have rendered scenes with over 5M polys no problem, so this is super frustrating. I have tried deleting large objects and reducing polys, but nothing seems to work. Any Ideas on why this is happening???

Intel i7 6700k
Windows 10
16GB RAM
GTX 1070
GTX 1060

EDIT:
So after some digging I found its the textures that are filling the memory - nearly 4GB. I could go through and downscale every one of my textures, but is there a way actually in the node editor or settings somewhere to downsize the texture files from 4K to like 2K or 1K?

[aoktar]

try out-of-core with enough memory settings. It's for textures.

[Adept]

try out-of-core with enough memory settings. It's for textures.

I have it turned on, and the RAM usage limit is at 10GB. I was able to get it working by downscaling all the 4k mats, but for future reference if I feel I need all high quality mats, is there any way to fix this?

[aoktar]

You may need more RAM. Yours is low for big content.

[Adept]

You may need more RAM. Yours is low for big content.

Alright. I upped the limit to 14GB and it sorta helped. But thanks!