Rust not showing accurate memory on MAC in console system information

When I open up the console in Rust, and view the system information tab, is shows the following:

AMD Radeon R9 M295X Open GL Engine
API: OpenGL 4.1 ATI-1.40.15
Memory: 1024
SM: 41

I also show nothing under the memory section.

This doesn’t make sense to me, as I have:

AMD Radeon R9 M295X 4096 MB
with 16 GB 1333 MHz DDR3

Is it really not seeing the other 3 gigs of GPU? Is this why I can’t run my game any higher than 1024X768 on simple at 20-28 FPS?
I feel like my machine should be able to handle this.

Images attached:

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(no images btw)

this post isn’t really clear; what are you asking?

Why does rust show I only have 1GB GPU, when my computer has a 4GB GPU.

I have more than enough system resources to be running the game higher than 20FPS @ 1024x768. but alas I cannot.

repost:

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