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GSalden

How much VRAM does P3D v2 use on your system ?

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Questions :

  1. what graphics card ? How much VRAM ?
  2. resolution ? ( single, dual or triple monitor )
  3. shadows on / off ?
  4. other detailed settings ?

 

Just to get a very good idea  what one can expect

 

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I have an ATi Sapphire HD7950 with 3Gb VRAM. Running at 1900x1200 with all options maxed apart from shadows, I can comfortably maintain smooth flight over just about anywhere. It's matched with an overclocked i5 2500K @4.7GHz, and I find the CPU is normally maxed on all cores, plus the GPU is I'm the mid 90's mostly with 2.6 to 2.9Gb of VRAM used. Never had an OOM yet.

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My last flight in p3d v2 used around 3.5gb of the 4gb on my 680 gtx. In fairness that's over three screens at a resolution of 6000 x 1080. Gpu usage though is almost constantly at 99%. That's just due to shadows being enabled. The same settings at just 1920 x 1080 sees the gpu sit nicely at 60 to 70%.

 

Jess B

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Questions :                                                              Answers:

  1. what graphics card ? How much VRAM ?            GeForce GTX 670 with 2 GB (average use about 1.6 GB)
  2. resolution ? ( single, dual or triple monitor )         1920x1080x32 single monitor
  3. shadows on / off ?                                                 shadows on
  4. other detailed settings ?                                        water highest level, mesh resolution 1m, tessellation high to get waves

 

Spirit

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Thanks everyone,

 

To compare : my 3 monitor setup using GTX680 SLI shows 900-935 mb with FSX in 5850x1050 resolution,...

 

So P3D really is way better in GPU use.

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Hi Gerard,

 

1. GTX 780TI GPU 99% VRAM 90%

2. Small LG Beamer @ 1280x800

3. AC Shadows inside outside cast & receive ON Terrain receive ON Trees cast ON

4. Tesselation Ultra, Terrain 5m Texture 30 cm Water Ultra

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Thanks everyone,

 

To compare : my 3 monitor setup using GTX680 SLI shows 900-935 mb with FSX in 5850x1050 resolution,...

 

So P3D really is way better in GPU use.

In FSX my three monitors running in almost the same resolution as yours will just get above 1GB with settings that give good performance. In P3D I've had it get to 2.6 with settings that are flyable on my system. I have a 3GB AMD card.

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I have a single 1920x1080 monitor and GTX680 4GB, and the last time I checked my overhead was approx 2.10GB. 

 

Shadows set to Med cast/recieve internal/external, simobjects, terrain.  

Water/Reflection set to Ultra and all checked, ultra tesselation.

Tex res 1024, LOD 4.5

Autogen Density set to Dense

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With 4096 textures and add-ons I hit 3.6GB VRAM, 2048 I'm hitting 3.2GB VRAM -- clouds/weather has an impact as does distance.

 

I did get one OOM, but it was NYX (no surprise there) and JFK2 and rex and FTX and me changing settings frequently while flying.

 

What I've noticed is that all the City X series (not MSE ones but Aerosoft) don't look very good and seem to induce an fps hit along with heavy VAS (not VRAM) usage ... so I'm guess these City X series are using FS9 type textures/objects?  The cities in P3DV2 actually look much better without City X ... maybe it's FTX helping out there.

 

Titan 6GB

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what tool's being used to measure this?

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What are your specs Rob : resolution / single or multi monitor ?

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  The cities in P3DV2 actually look much better without City X ... maybe it's FTX helping out there.

 

Titan 6GB

 

I am noticing that too, besides the ability of rendering more autogen, I find default building quality to look much better globaly in P3Dv2 vs FSX. Not sure why.  

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what tool's being used to measure this?

I measure and show the values in flight on screen with EVGA Precision X tool. It's a very nice tool to adjust and monitor the GPU. Google may help you to find it.

Spirit

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Ok lame I know:

 

GTX 780

I run three 27" - I do not look at my VRAM usage and roll with whatever look best and smoothest.

 

While I like to tweak with overclocking I stopped tweaking with sims it was too distracting. If I OOM I dial something back until I don't anymore.

 

Hehe not even sure what my sliders are set at anymore.

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resolution / single or multi monitor ?

 

 

Single monitor 2560 x 1600.

 

 

what tool's being used to measure this?

 

 

All kinds of different tools from GPU-Z to Process Explorer (it'll show dedicated GPU mem vs. GPU system mem) to Windows 7 gadgets and a various other applications that will even do it (like C4D, Adobe - require a refresh).  Process Explorer - System Info does the best job IMHO.

 

VRAM usage from FSDT JFK2, bad weather.

 

P3DV2JFK1.jpg

 

Linked the image because of AVSIM image size rules, but I think it's important to see full size image with fps counter also as it will represent all that is present relative to VRAM ... Dusk setting which is usually pretty intensive on resources.

 

http://robainscough.com/images/685042b4a873b75a63a289af369d88ce.jpg

 

Rob.

 

EDIT: this is not "per process" ... all engines selected ... but it's the only GPU process (other than Desktop) that is running.

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Very well done test Rob.

 

I am curious if P3D v2 also has a working SLI in the 2d cockpit without gauges or spotplane view like FSX.

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VRAM usage from FSDT JFK2, bad weather.

*expletive* that Titan of yours Rob is still just ticking over. (Another expletive deleted lol) if mine gets to 50% I think it's gone to sleep :)

 

Interesting to see the 3.1GB memory usage! I've tried to get mine above 2.8Gb on a 3 gig card and it seems to have limits. I'm sure they have programmed something in so the memory is managed to the VRAM available. Silly statement, of course they would. Doh!

 

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this is the result of a dual core ATI 6990 4GB memory which only uses one of its core and only 2GB of memory, leaving Seattle 

 

zpad.jpg

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I am curious if P3D v2 also has a working SLI

 

SLi/Crossfire utilization is not available in P3DV2 yet, LM indicated v2.1 will utilize SLi/Crossfire.

 

 

 


if mine gets to 50% I think it's gone to sleep :)

 

Interesting ... I have frames locked at 30 fps in P3DV2 - I don't really set anything significant in nVidida Inspector ... have only used P3DV2 settings (not touched the Prepard3D.cfg).

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SLi/Crossfire utilization is not available in P3DV2 yet, LM indicated v2.1 will utilize SLi/Crossfire.

 

 

Interesting ... I have frames locked at 30 fps in P3DV2 - I don't really set anything significant in nVidida Inspector ... have only used P3DV2 settings (not touched the Prepard3D.cfg).

 

FSX does also officially not support SLI , but it does in certain situations it does.

Therefore I am curious if someone have an SLI setup can test it with P3D as its roots are the same as those of FSX.

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Which apps are you using to measure the vcards RAM usage?

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Which apps are you using to measure the vcards RAM usage?

 Process Explorer 

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Which apps are you using to measure the vcards RAM usage?

 

See my response above #15 http://forum.avsim.net/topic/428503-how-much-vram-does-p3d-v2-use-on-your-system/?view=findpost&p=2876042

 

 

 


FSX does also officially not support SLI , but it does in certain situations it does.

 

Support and Utilize are two different concepts when it comes to SLi/Crossfire.  When I say Utilize, I mean the GPUs are involved earlier in the pipeline sharing processing duties ... this doesn't happen in FSX nor P3D.  That's where we see 50-80% fps improvements.

 

But I'm curious what specific situations does SLi work with FSX?  I've seen some posts regarding it's usage, but most turned out to be false positives and there was really only a slight benefit in the processing of certain type of AA.

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Hi, just got a 760 board with 4gb and here is what I am using.\

 

1. ORBX

2. Scenery maxed

3. Clouds Maxed at 80mi

4. Water high

5. shadows - high - user and external objects (cast and allow), terrain - allow, buildings cast,

6. HDR

7. Vans RV

 

This is basically what I have. I do not have the computer on so there could be a few other options but I am using 3.2gb.

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This is a useful thread.  I have yet to purchase a new vid card and was inclined to a 780, 3GB.  But with some reporting vram in excess of 3 gb, I'm now starting to consider stepping up to a Titan, espcecially considering my plan to use multiple monitors.  Expensive.

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