Lower quality not improving performance

[cah150]

I've got an AMD FX-6300 and an R9 380 4GB. I started Fallout 4 once I got things up and running, and the launcher automatically set the detail to Ultra. The game held a solid 50 FPS until I got out of the vault. Looking at Sanctuary from the vault entrance drops me to ~20 FPS, and looking anywhere else but the floor gives ~40 FPS.

 

In an attempt to fix this, I lowered the quality. Changing from ultra to high did nothing. Changing from ultra to the lowest possible setting resulted in 60 FPS when looking in the distance away from Sanctuary, but looking at Sanctuary itself I barely pushed 30 FPS. Any ideas what could be going on?

 

What I've tried:

 

Updating drivers; already had latest AMD drivers.

 

Godrays quality; little performance boost.

[PlayStation 2]

CPU bottlenecking.

[jasonc_01]

Turn off AA?

 

[cah150]

Looking at the task manager, my CPU usage peaked at 62% at that 30 FPS spot. Would that be bottlenecking?

[cah150]

Turning off AA helped a bit, it makes the FPS drop a little less noticeable. I can live with the lower framerate, just the initial drop really kills it for me.

[JefferyD90]

7 minutes ago, cah150 said:

I've got an AMD FX-6300 and an R9 380 4GB. I started Fallout 4 once I got things up and running, and the launcher automatically set the detail to Ultra. The game held a solid 50 FPS until I got out of the vault. Looking at Sanctuary from the vault entrance drops me to ~20 FPS, and looking anywhere else but the floor gives ~40 FPS.

 

In an attempt to fix this, I lowered the quality. Changing from ultra to high did nothing. Changing from ultra to the lowest possible setting resulted in 60 FPS when looking in the distance away from Sanctuary, but looking at Sanctuary itself I barely pushed 30 FPS. Any ideas what could be going on?

 

What I've tried:

 

Updating drivers; already had latest AMD drivers.

 

Godrays quality; little performance boost.

I'm fairly for certain its a driver or configuration issue.

[PlayStation 2]

Just now, cah150 said:

Looking at the task manager, my CPU usage peaked at 62% at that 30 FPS spot. Would that be bottlenecking?

Possibly? Like someone above said, turn off AA or force it in Radeon Settings or Catalyst Control Center.

[cah150]

I turned off AA, set the priority to high in task manager, and the CPU usage went up to about 70%. It wouldn't surprise me if it were bottlenecking, I just always imagined it'd max out CPU usage but still not be enough.