Comparison between Prepar3D 2.5 and 3.2

[KNOSSOS 122]

Comparison between Prepar3D 2.5.12942.0 and 3.2.3.16769.

Sims were clean installed. No add-ons: full default setup.

Same PC: Windows10 x64, display 3840x2160, 16GB RAM, Geforce GTX980OC, Core i5 2550k@4.3GHz

Same driver: Nvidia 354.51

No tweaks on shaders or additional tools like resade.

 

Settings are similar:

 

 

 

 

 

Scenes tested were similar. Just copy situations(flights) from P3D v3 to P3D v2 folder in My Documents.

Real FPS numbers are presented on attached screenshots.

 

Scene 1. Three clouds layers and two visibility layer. Precip. FPS penalty in 3.2 10%. (Despite quantity of raindrops draw significantly reduced in 3.2 ).

 

 

 

 

 

2. "Live" water. FPS drop 25%.

 

 

 

 

 

3. A plenty of autogen buildings. Increased range of autogen rendering almost not really important, but have sharp boundaries. FPS penalty 25%.

 

 

 

 

 

4. Mesh test. Mountains. FPS drop 25%.

 

 

 

 

 

5. A plenty of water and clouds. FPS penalty 20%.

 

 

 

 

 

Testing flights with default aircrafts. No stutters in 2.5 at all. Smooth and fast. In fact, up to 25% faster (!). Visual improvements in 3.2 almost not noticeable.

Only water and HDR have significant changes. IMHO.

25% is too much for almost no eye-sweet. Isn't it? Or it's a fee for stability?

[Afterburner 374]

Have you tried with the dynamic reflections in P3D v3.2 turned off?  They cost a lot of FPS, especially if you set them to Ultra. (Whereas they are not implemented at all in P3D v2.5).

[Walter Almaraz 21]

As Afterburner said you should set off dynamic reflections, this feature need a lot of FPS, certainly this comparison is not valid for that thing

[KNOSSOS 122]

As Afterburner said you should set off dynamic reflections, this feature need a lot of FPS, certainly this comparison is not valid for that thing

 

Oops... Just forget to turn off this new feature. Thanks.

Sorry for inaccuracy.

Where can I look examples of this expensive feature? 

[Richard Sennett 2,499]

Oops... Just forget to turn off this new feature. Thanks.

Sorry for inaccuracy.

Where can I look examples of this expensive feature? 

 

Under lighting settings I see you have it full blast - time to do a new test - nice job though 

 

Try with reflections off - as reflections off still pretty nice

[dgraham1284 92]

This really isn't a fair test. Your hardware isn't capable of running those settings. To say you are paying for a 25% decrease in performance is just inaccurate. What do I mean your hardware isn't capable? The 980 does not have the VRAM required to run those settings you have. Hell, I can't. And the 980 ti has 6GB of VRAM.  v3 has additional rendering that creates more overhead as well. The below picture is with settings not even as high as those. 

 

Not to mention your processor is most likely bottlenecking your gpu. 

 

[KNOSSOS 122]

Thanks that you show me my mistake. Yes. The 25% drop FPS was due to Dynamic reflection set to ultra. When I switched it off, FPS become same in 2.5.

Unfortunately, I cant see the differences in visual between  DR on and OFF.

 

This really isn't a fair test. Your hardware isn't capable of running those settings. To say you are paying for a 25% decrease in performance is just inaccurate. What do I mean your hardware isn't capable? The 980 does not have the VRAM required to run those settings you have. Hell, I can't. And the 980 ti has 6GB of VRAM.  v3 has additional rendering that creates more overhead as well. The below picture is with settings not even as high as those. 

 

Not to mention your processor is most likely bottlenecking your gpu. 

 

 

 

 

What you mean hardware isn't capable? You can see on screenshots above real FPS on my hardware. No stutters, smooth flight. And memory consumption on my 980 is about 2.7-2.9GB because it has 3GB. Yours have 6 GB so buffers take more VRAM. 

[Gregg_Seipp 568]

So, the long and short of it is, the performance of 3.2 is the same as 2.5 if you don't use Dynamic Reflections?

 

Gregg

[KNOSSOS 122]

So, the long and short of it is, the performance of 3.2 is the same as 2.5 if you don't use Dynamic Reflections?

 

Gregg

Yes. With <Dynamic reflections = OFF> in Prepar3d v3.2 FPS on all scenes above on my hardware are the same in Prepar 2.5 and 3.2.

[Gregg_Seipp 568]

Stupid question...why is 3.2 brighter?  Is that a new feature?  If so, I like it.

 

Gregg

[Anxu00 176]

 

 

Stupid question...why is 3.2 brighter?  Is that a new feature?  If so, I like it.

HDR controls is now in the UI, default was a bit brighter.

 

 

Yes. With in Prepar3d v3.2 FPS on all scenes above on my hardware are the same in Prepar 2.5 and 3.2.

It's generally better performance with 3.x.  In my SimAddons Airport, using the NGX I have 25% better FPS.  The major advantage is in the much less chance of OOM with 3.x.

[Gregg_Seipp 568]

 

 

HDR controls is now in the UI, default was a bit brighter.

 

Thank you.