Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

P3Dv4 VRAM limit?

Featured Replies

Hi,
is there a maximum amount of VRAM the sim will use?
I'm asking because I can't get it to use more than 7-8GB (my GPU has 12GB VRAM) and I had some situations where I thought "why doesn't it have this in vram?" like when I flew over EGLL and when I looked back over my shoulder all airport buildings were textureless/black and it took a second to re-load the textures which were already there 10 seconds ago.

With TEXTURE_SIZE_EXP=10, LOD_RADIUS=14.500000, all Settings @max and ORBX-England I get to 7.3-7.8GB VRAM. I thought it might be because I only use 1080p, but even with DSR@4k the VRAM consumption did not change.

So could there be a limit, e.g. 8GB? (I never saw over 8GB VRAM usage...)

Windows 11 Pro - Ryzen 3 5900X - nVidia RTX 4090 - 32GB DDR4-3600 === Microsoft Flight Simulator

I was wondering the same thing, but in my case it looks like my regular ram is capped at 8gb. 

John

where do you put texture size exp 10 at in the config file?

  • Author
5 minutes ago, Patriot3810 said:

where do you put texture size exp 10 at in the config file?

Prepar3D.cfg:

[TERRAIN]
TEXTURE_SIZE_EXP=10

 

 

Windows 11 Pro - Ryzen 3 5900X - nVidia RTX 4090 - 32GB DDR4-3600 === Microsoft Flight Simulator

thanks i am gonna compare to yours

  • Author
2 minutes ago, Zaros said:

Yeah 8 seems to be max to for me 2, tried texture_size 11 and 12 but just kills scenery.

Same for me, value above 10 loads no ground textures at all...

Windows 11 Pro - Ryzen 3 5900X - nVidia RTX 4090 - 32GB DDR4-3600 === Microsoft Flight Simulator

What is the default texture size= XX ?

David Murden  MSFS   Fenix A320  PMDG 737 • MG Honda Jet • 414 / TDS 750Xi •  FS-ATC Chatter • FlyingIron Spitfire & ME109G • MG Honda Jet 

 Fenix A320 Walkthrough PDF   Flightsim.to •

DCS  A10c II  F-16c  F/A-18c • F-14 • (Others in hanger) • Supercarrier  Terrains = • Nevada NTTR  Persian Gulf  Syria • Marianas • 

• [email protected] All Cores HT ON   32GB DDR4  3200MHz RTX 3080  • TM Warthog HOTAS • TM TPR • Corsair Virtuoso XT with Dolby Atmos®  Samsung G7 32" 1440p 240Hz • TrackIR 5 & ProClip

8 minutes ago, Nyxx said:

What is the default texture size= XX ?

default texture size exp parameter is 8

Gordon Harvey

P3D, XP11, Flightgear.

thanks

David Murden  MSFS   Fenix A320  PMDG 737 • MG Honda Jet • 414 / TDS 750Xi •  FS-ATC Chatter • FlyingIron Spitfire & ME109G • MG Honda Jet 

 Fenix A320 Walkthrough PDF   Flightsim.to •

DCS  A10c II  F-16c  F/A-18c • F-14 • (Others in hanger) • Supercarrier  Terrains = • Nevada NTTR  Persian Gulf  Syria • Marianas • 

• [email protected] All Cores HT ON   32GB DDR4  3200MHz RTX 3080  • TM Warthog HOTAS • TM TPR • Corsair Virtuoso XT with Dolby Atmos®  Samsung G7 32" 1440p 240Hz • TrackIR 5 & ProClip

Perhaps another line in the config file somewhere which limits maximum VRAM usage because Rob Ainscough definitely stated he observed VRAM usage at nearly 11GB utilizing a value of 10 for the TEXTURE_SIZE_EXP setting.  

Running TEXTURE_SIZE_EXP=10 and i've never gone above 7.4GB VRAM used. I've got 12GB to play with. No matter what setting i throw at it, it's not using more.

49 minutes ago, Syonco said:

Running TEXTURE_SIZE_EXP=10 and i've never gone above 7.4GB VRAM used. I've got 12GB to play with. No matter what setting i throw at it, it's not using more.

And what exactly is bad about this? The less VRAM an application needs the better the performance. ;)

1 minute ago, Farlis said:

And what exactly is bad about this? The less VRAM an application needs the better the performance. ;)

Nothing necessarily bad about it, just curious as it was said specifically when using the "TEXTURE_SIZE_EXP=10" you'd see 10GB+ of VRAM usage :)

 

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.