This happens when I approach big cities.  Is it pretty normal perf for a system like mine?  (specs on left)

 

Here's me descending into KLAS with some freeware addon - 19 FPS.  It's managable but 19 is pretty low, and it's not very smooth.

 

 

 

 

Hi!

With your VRAM, I´d definitely suggest that you lower your objects setting to at least "mega tons", or even better "tons", also the number of cars could be a little too high, I run at the minmum setting and I till have a good amount of road traffic!

On the developer blog , it says that the objects and world detail distance will be used by the CPU.  Yeah that VRAM is less.

 

Best is to check this

 

 

http://developer.x-plane.com/2007/04/cpu-or-gpu/

Do you use Nvidia inspector? And if so, have you made any settings for X-Plane? I had low frames in a game once and didn't know why until I realized I had made some outrageous test settings in Inspector and forgotten about them.

 

And yeah, I would reduce the cars, they are a big frame-gobbler.

Water reflection is also a "hungry" item.  Take it way down - even none - and it will help...    Yes, I know there is no water in this picture, but it still works against you.

 

John 

Another thing to try is to take down the amount of car traffic. When approaching a big city, the number of streets and street crossings is going up exponentially, so the CPU load of calculating car and railroad traffic gets pretty heavy. 

 

I noticed when I plopped in a brand new GTX770 card for my old 560, and to my amazement got pretty much the same framerate on my KLGA La Guardia test setting.

 

Toning down the AI traffic to "Siberian Winter" literally doubled my framerate.

 

Jan

One thing I learned after flying into KORD is that some  areas have massive OSM data. I used Simheaven's North American OSM download and every time I would come into KORD FPS would drop subteens and it appears the City of Chicago did a OSM dump of all it's building.

Same with Paris and other French areas.

 

I've have at least 3 CTDs flying in France, last week, using SimHeavens Europe + Autogen and HD Mesh V2. No photo sceneries there.

I bet you "overload" your CPU (and maybe VRAM). CPU is eaten up by number of objects*world details, water reflections and car traffic*urban area. All your settings are high or very high when it comes to those.

 

Flo

It must be those OSM sceneries....  I lowered settings and nothing really helped.  It's smooth in rural areas.  I'm also not using nvidia inspector.