UPDATE AS OF MAY 2010
This is an editted post to reflect new tweaks that have been discovered since the last time I tried FSX. Originally while I thought I had it running fairly well, it still didn't feel quite right and I eventually went back to FS9. Also because there was more NZ scenery for FS9 at the time. While this is still true there is certainly a lot more available now for FSX. AGain, in typical fashion, I have spent the best part of a week configuring FSX for my rig.Optimizing Windows
Ok, so you're thinking, yeh yeh, this won't make any difference. You're right in the sense it won't increase your FPS by much of anything if at all, but it should help smooth out your gameplay experience.
1) Uninstall ANYTHING you don't need.
2) Do EVERYTHING in your power to stop any unnecessary programs from loading when Windows boots. You need to get rid of as many of those little icons in your system tray (next to the time) as possible.
5) Defrag your hard-drives!! I suggest using a payware defrag like O&O which constantly monitors and defrags your hard-drive on the fly! Fantastic product.Ingame Settings
The four main settings which seem to be the most FPS intensive is Autogen, AI Traffic, and Land Traffic. Water and clouds will also tax lower end graphic cards, but this is a GPU limitation and NOT CPU (unlike most of FSX). New GPU's like the 5850, 5870, GTX285, GTX470, etc... should be able to handle any clouds you throw at it, and much higher water effects.
1) Water. Set this as low as you can. I don't mean full to the left. What I mean is if you don't mind how the water looks at 2.x Low then put it at that! Water has such a hit because it has to render things twice. With an 8800GT I had to use Low 2.x, with a GTX275 my rig can handle 2.x High without too much fuss.- 2.x Max. Reflects aircraft, sky, clouds, scenery, terrain, autogen
- 2.x High. Reflects aircraft, sky, clouds, scenery, terrain
- 2.x Mid. Reflects aircraft, sky, clouds, scenery
- 2.x Low. Reflects aircraft, sky
2) Autogen. Set this as desired. I tend to set Scenery and Autogen both to max (Extremely Dense) and then use the following tweak instead. FSX default max settings are as follows:TERRAIN_MAX_AUTOGEN_TREES_PER_CELL=4500
I set mine to:TERRAIN_MAX_AUTOGEN_TREES_PER_CELL=1500
It is rumoured that FS9 was 600 trees and 300 buildings max. I'm not sure, but even at 500 buildings I can tell you that cities look like cities! With 1500 trees, forests still look dense, but they aren't as immense as default. You'll need to play with it and see what you like and what your rig can handle. Fly over Auckland to check your building density, and the amazon for your tree density.
3) AI Traffic. AI kills FPS!!! Set this as low as you desire. I use 75% on each. Try and use optimized models and NOT FSX default AI. World of AI is a good free one. I also use the GNZLAP/HTAI for GA traffic. There is a program out there which converts FS9 flight plans into FSX format. FSX does support FS9 flight plans, but it can only handle one or the other, so make sure they are all FS9 format or FSX format.
4) Land traffic. 10% for each seems like a good compromise. Cars seem to chew up more resources than ships and boats.nHancer - Graphics
: Only for nVidia
Please follow this guide: http://www.simforums.com/forums/forum_posts.asp?TID=29041
for the nHancer settings. Feel free to try the other tweaks as well. Your mileage may vary, but I found that just setting up nHancer improved my game immensely. The FSX.CFG tweaks listed didn't seem to have as much effect for me.
Anyway. That is my experience. Hope it helps someone else!BufferPools
There are two opposite tweaks here. One tweak, recommended by NickN, is to set a large PoolSize. This reserves system RAM for buffering. The poolsize you should choose vary from 5000000 to 100000000. You'll just have to try for yourself. The most common values seem to be 20000000 or 40000000. Add this to your FSX.CFG:[BufferPools]
The other view is that using no buffer pools works better, but can decrease stability. This is because FSX sends renders direct to your GPU. If you have a high end GPU this tweak will probably work better than using pools. But if you have a mid to low end graphics card then this probably isn't for you. I found this cured some extremely horrible stuttering on very advanced aircraft models (payware).[BufferPools]
The inbuild frame limiter in FSX actually hogs resources. Setting a target FPS will give you an overall lower FPS than if you set it to unlimited. For example, if you got 30fps, then set your target to 30fps, you'll find your FPS is now actually only 20fps. This is because FSX is doing some strange tasks and calculations in the background. The good thing about a target FPS is that it helped decrease stuttering when framerates went up and down rapidly. Well now you can use a 3rd party program to do the same thing. Just set your in-game to Unlimited and use http://www.caveofdistraction.com/2009/07/2...d-other-titles/
to cap your FPS - I use 30fps cap.
Hope you find these tweak useful. There are a thousand other tweaks that people say works for them, but I've not had any luck with anything other then what I have mentioned.
Last edited by s0cks on Mon May 17, 2010 8:52 am, edited 1 time in total.