What type of gain going from 1080i to a 1080ti...?

[Kilo60 660]

What gains are to be expected in going from 8gb to 11gb VRAM 1080 card?

 

Will texture loading improve?  What about stutters when to Vram is maxed and the sim has to swap to system ram and CPU cycles?  

Does general FPS increase with high texture settings and LOD?

 

What have you all found?

 

Looking to upgrade my GPU on next price drop!

 

Thanks!

 

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Edited October 7, 2019 by Kilo60

[ryanbatc 12,855]

You mean from a regular GTX1080 to 1080 Ti?

If you're running 4K monitors maybe a bit of a difference.  But I would go to the RTX 2080 Super or 2080 Ti if you were trying to upgrade.

Honestly I'd probably just hold off....who knows what the next sim would be able to use!?

[Evros 310]

Well it's rather simple. 1080 Ti is ~25% faster than 1080 which translates into 25% more eye candy you can enable. It is not only about Vmem capacity. If you are currently maxing 8GB of your VRAM then 11GB is obviously going to be better, and with faster memory bus and frequency.

Edited October 7, 2019 by Evros

[ryanbatc 12,855]

1 hour ago, Evros said:

Well it's rather simple. 1080 Ti is ~25% faster than 1080 which translates into 25% more eye candy you can enable. It is not only about Vmem capacity. If you are currently maxing 8GB of your VRAM then 11GB is obviously going to be better, and with faster memory bus and frequency.

I don't think it's like that at all....maybe in a FPS game or any modern day software which uses a powerful GPU....but P3D and even XP11.....meh.

[Evros 310]

8 minutes ago, ryanbatcund said:

I don't think it's like that at all....maybe in a FPS game or any modern day software which uses a powerful GPU....but P3D and even XP11.....meh.

But it is. Twilight flying with lots of long shadows and dynamic lights can bring any GPU to it's knees and drop your frames to single digits. I was using Strix 1080 and I had to use few different profiles, especially for twilight situations. Now with Strix 1080 Ti, that is no longer the case.

[ryanbatc 12,855]

Okay.

[G-RFRY 1,712]

My GPU never breaks sweat fans don't spin until I get in really heavy scenery and I use GPU tweaks in the config to preload the vram, it just means you can run higher settings icandy .

[F1le 12]

P3D does not use GPU a lot ... There are some limits... As a person who's been flying X-Plane 11 and P3D v4.5 in 4K I can say that P3D v4.5 uses CPU in most cases, and X-Plane 11 uses GPU in most cases...

 

My RTX2080Ti is almost NOT responding and doing nothing in P3D on 4K on quite detailed level, but my i9-9900K@5.1 has a very crazy job, while in X-Plane 11 ... RTX2080Ti has quite a nasty job to do, while CPU is a little bit lazy.

 

 

[simmerluke 5]

I can only give my subjective thoughts having recently made a similar(ish) change on my particular system.

I recently had a chance to upgrade without too much cost from a 1060 (6Gb) to a 1080Ti (11Gb) and having tried various scenarios in P3D I was slightly disappointed (but not entirely surprised) to find very little gain in either frame rates or smoothness. I suspect that going from a 1080 to a 1080Ti would see less gain.

Now X-Plane on the other hand, that was a different matter. Much smoother overall experience swapping views etc.

[Bob Scott 7,721]

Where you'll see the difference in P3Dv4 is high-resolution displays, heavy clouds, precip, dynamic lighting and aggressive AA.  If you're willing to manage your flying scenarios, you can get by with much less GPU, but if you want the ability to venture into heavy weather at night with dynamic lighting and SSAA on a 4K display, there are scenarios where even a pair of 1080Ti GPUs can't keep up.

It's sorta like towing an RV with a truck...it may be able to hold 65 mph on a level stretch of highway, but it's when you're climbing a 7% grade with a 40 mph headwind at 8000 feet elevation that you discover what the machine is made of.

[ryanbatc 12,855]

Does anyone have a GTX 1080 they'd like to sell me lol?

[andreh 125]

It's not uncommon that people complain on these boards about the meager and disappointing gains in P3D after a GPU upgrade.

[Kilo60 660]

4 hours ago, andreh said:

It's not uncommon that people complain on these boards about the meager and disappointing gains in P3D after a GPU upgrade.

True... But:

When the GPU is under full load in brief situations where it is drawing high Rez auto gen (with shadows/dynamic lights) like landing at a high density urban airport or switching views and high Rez terrain/auto gen has to be rendered, does the better video card process it all faster?  

 

For instance when switching to external view it takes 10-20 secs at times to redraw the terrain/autogen with each render getting higher and higher Rez...

 

 

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Edited October 9, 2019 by Kilo60

[onebob 125]

16 minutes ago, Kilo60 said:

For instance when switching to external view it takes 10-20 secs at times to redraw the terrain/autogen with each render getting higher and higher Rez...

Don't have that problem with my I7 4470 @ 4.2 o/c and a 1080 ti gpu.

the change to external and back to vc is instant.

What I do have appears to be a drop in Gpu vram usage. When I use the tweak 'TEXTURE_SIZE_EXP=10' my gpu mem usage was over 7000mb , now for some reason it's only  going up to 3700mb ( that's with High-resolution Textures ticked' and slider bars to the right)

 

bob

[Bob Scott 7,721]

38 minutes ago, onebob said:

What I do have appears to be a drop in Gpu vram usage. When I use the tweak 'TEXTURE_SIZE_EXP=10' my gpu mem usage was over 7000mb , now for some reason it's only  going up to 3700mb ( that's with High-resolution Textures ticked' and slider bars to the right.

Ticking the "High resolution textures" box is the same as setting TEXTURE_SIZE_EXP=9...so if you change that setting in the GUI *after* editing the setting in the Prepar3d.cfg file, it will get changed back down to 9.  So I'd recommend checking that it's still set in the config file.