###### will attack me again but I have to say this, p3d = stuttering fsx + shadows. Nothing more, nothing less.

 

Unless you can keep 60fps all the time (which is impossible), there'll be stutters no matter what you do or what you install. So, give up either shadows or smoothness. Personally, I like those shadows so I'll keep p3d. My pc is double boot of Win7 and Win8. I am keeping both sims in my pc under different os.

Richard,

 

I'm also running W7 on an iMac, but I'm using Parallels 9.  Although not the quickest, it will run EFB, PFX and ASN just fine.  I do close PFPX after exporting FP's and saving a text FP which I keep open.  Chrome can get a bit slow on OSX if I have more than six tabs open.  It is though, a 2009 iMac.

 

The FS Rig has a GTX 970 but only a [email protected], 8GB RAM.  It performs very well.

 

Happy simming.

 

ps. try the 344.16 drivers.

 

Thanks Dean,

 

I don't have any issues with the mac, right now I am flying from EGLL to EGPH for BA Virtual in the Airbus 320 in FSX and it is so smooth, I really can tell the difference.

 

I guess I have been spoiled with the performance of FSX with DX10 that I do notice the very small stutters I am getting in P3D. 

 

I am going to keep reading the forums to see what other things I could try.

 

I'll certainly take a look at those drivers

 

 

ps. try the 344.16 drivers.

 

Where did you get 344.16 drivers?

 

I could only find 344.11

Welcome to the stutter-club. Although I have not counted, I would not be surprised if I've spent more than 10x7 hours trying to cure the stutter problem in P3Dv2. I'm still watching every thread I can find (like this one) to see if there are any cures/tweaks/ideas I have not yet tried. To try them all, isolated and in combinations takes alot of time. Not to mention the occasional complete format of the system. 

 

I am definitely disappointed as you are too, but my passion for this hobby will not let me give up. One day I'll get it all to work again. Until then I'm on FSX Steam.

 

 

Yeah it's funny how different the flightsims perform on different systems. I get the fact that there are an unlimited possible variations from PC to PC and that no systems are the same, but flightsims seems to be especially fragile compared to other games and programs I run. 

 

Getting a flightsim smooth is like building a massive house of cards. Or so it feels. 

 

/end rant.

Sadly this is my experience as well. P3D is getting better and better, but I too havent been able to cure the stutter problem. Moving from P3D to FSX SE makes its very apparent how much more smooth it performs. And stutters are a real immersion killer!

nice to be part of a niche market eh?

 

Imagine having to tweak and tinker and revert to older divers and what not with games like crysis etc There'd be riots!

 

LM is doing a nice job, but the state of civilian flightsims in 2015 is well below par imho.

 

I agree, P3D has made flightsimming move forward, however looking at the state of the art graphics of blockbuster games makes you realize that we flightsimmers are missing out.

Is the whole stutter issue down to the fact that you cannot run the Vsync on standard at 1/2 refresh rate at 30fps (60hz monitor) that makes FSX so buttery smooth. P3D runs in windowed mode which means the standard vsync won't work. I am not sure if there is a workaround (adaptive vsync?)or whether Nvidia need to release a driver that works. I am currently thinking of moving to P3D from FSX as there are many things to like but microstutters are pain especially if you use Track IR and for me now an immersion killer.

 

If anyone has any advice I would love to know.

 

 

 

Hamish.

Is the whole stutter issue down to the fact that you cannot run the Vsync on standard at 1/2 refresh rate at 30fps (60hz monitor) that makes FSX so buttery smooth. P3D runs in windowed mode which means the standard vsync won't work. I am not sure if there is a workaround (adaptive vsync?)or whether Nvidia need to release a driver that works. I am currently thinking of moving to P3D from FSX as there are many things to like but microstutters are pain especially if you use Track IR and for me now an immersion killer.

 

Well, I think that's the reason. Higher fps close to 60, my p3d is becoming smoother. Occasionally, I manage to keep 60 fps for a while, then it's super smooth. One solution would be getting a monitor with a 30fps native refresh rate. Like those 4K monitors. But, I am sure that option won't work for me. My gpu can't carry 4K resolution and maintain 30 fps. 

My experience is this...when p3d is able to achieve 60fps+ (in the plains of the midwest or siberia), then yes, it is buttery smooth and no occasional stutter. But over Orbx, or reasonable amounts of AI, or heavy cloud cover, 60fps is impossible to attain, more like 25-40fps, depending. When this happens, occasional stutters occur. I am not talking about fps lag, but occasional bumps, that I attribute to scenery loading, AI loading. These bumps or stutters are somewhat mitigated by limiting fps in sim at about the max fps I am actually getting. So if fps is hovering around 28-32 fps for example, limiting to 30 eliminates stutters, and is smoother overall.

 

I had better FPS in FSX dx10 with regards to Orbx, and others, but then again, their were no cloud shadows, ground shadows, HDR, Tess, Volumetric clouds, etc etc. If you disable all that, its pretty much on par with FSX for me. 

 

 

Where did you get 344.16 drivers?
 
I could only find 344.11

 

Richard -

 

http://www.geforce.com/drivers/results/78216