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GTX Titan Xp v 1080Ti: besides the massive cost diff and 1GB more VRAM, what's the difference for P3D V4?

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I'm one to shoot for best parts for new builds, but since my 4.2y/o box is really up to the task for the time being (likely won't go V4 until all my add ons will work) except the video card I'm looking at these two options.  I'm not seeing a compelling reason to go w/ Titan Xp, but I really don't know.  1080Ti is massively stronger than my GTX Titan, so I plan to sell it and go w/ 1080Ti or God forbid, Titan Xp.  As I say, the cost difference is really substantial, yet published specs seem almost insignificant.  Please correct me if that's not the case.

Noel

System:  9900X3D Noctua NH-D15 G2, MSI Pro 650-P WiFi, G.SKILL  64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000, WD NVMe 2Tb x 1, Sabrent NVMe 2Tb x 1, RTX 4090 FE, Corsair RM1000W PSU, Win11 Home, LG Ultra Curved Gsync Ultimate 3440x1440, Phanteks Enthoo Pro Case, TCA Boeing Edition Yoke & TQ, Cessna Trim Wheel, RTSS Framerate Limiter w/ Front Edge Sync.

Aircraft used in MSFS 2024:  Fenix A320,  Aerosoft CRJ, FBW, WT 787X, I-Fly 737 MAX 8, Citation Longitude.

 

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I am not even sure people can offer a good opinion on this yet given how new v4 is.  I think 12 months from now people will be suggesting 12 gig of VRAM (if available).

Mark   CYYZ      

 

The latest Titan X Pascal has the same architecture as the 1080 Ti.

Save yourself the extra cost and buy a 1080 Ti.

I have one and it drives 3 HD outside view monitors .

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

3 minutes ago, GSalden said:

Save yourself the extra cost and buy a 1080 Ti.

Agreed. This is a no-brainer.  The Titan Xp shouldn't even be in the discussion because of the price/performance ratio.

I'm currently running Haswell/4.4/TitanBlack w/6GB/EVO Pro SSDs

I run photoscenery only with AI at my major hubs.

I have TEXTURE_EXP=10 in the config. with ~4.3VRAM used and an 88% GPU load @69c temp.

Silky smooth at 30fps solid.

A 1080 whatever wouldn't help me at all. :biggrin:

 

24 minutes ago, Greggy_D said:

Agreed. This is a no-brainer.  The Titan Xp shouldn't even be in the discussion because of the price/performance ratio.

If you want/need card with best perfromance TitanXp is no brainer and must to have, gtx1080ti is much cheaper but it is little bit slower.

i7-8700k, RTX2070 Super, custom water cooling, 32GB RAM, 6TB SSD space
Prepar3D v4, X-Plane 11, 40" 4k TV
Rex, Active Sky, RealAir and A2A pilot, GTN, ORBX mostly everywhere
 
30.jpg

25 minutes ago, Jiri Kocman said:

If you want/need card with best perfromance TitanXp is no brainer and must to have, gtx1080ti is much cheaper but it is little bit slower.

The 1080 Ti is not slower.

5950x3d 5.4-5.7 GHz - Asus ROG 870 Crosshair Apex - GSkill Neo 2x 24 Gb 6000 mhz / cas 26 -  MSI RTX 5090 Gaming Trio OC - 1x SSD M2 6000 2TB - 1x SSD M2 2800/1800 1Tb -  Corsair 5400  case - Corsair 360 liquid cooling set  - 3x 75’ TCL tv.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 

FOV : 200 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0

 

11 minutes ago, GSalden said:

The 1080 Ti is not slower.

It is of course. 1080Ti have less CUDA cores. 3584 CUDA on 1080Ti, 3840 on TitanXp.

This is shot from article - http://pctuning.tyden.cz/hardware/graficke-karty/46719-nvidia-titan-xp-ve-23-hrach-a-testech-vcetne-oc-na-vode?start=9

Results are avg. performance from over 20 games test. First three rows in graph are with water cooling. TitanXp in second row is not OC, it boost that high with water cooling. In default TitanXp is mostly same as OC edition of 1080Ti.

vykon.png

i7-8700k, RTX2070 Super, custom water cooling, 32GB RAM, 6TB SSD space
Prepar3D v4, X-Plane 11, 40" 4k TV
Rex, Active Sky, RealAir and A2A pilot, GTN, ORBX mostly everywhere
 
30.jpg

And the OP's original question centers on a P3D4 use case.  Are you going to see a difference between a 1080 ti and Titan Xp in P3D4?  No way.

Waste another $400-$500 for bragging rights if you want.

I agree that a Titan Xp is not a good value buy for P3D.  There are only 2 reasons to buy:

1) if you must have the absolute best performance possible, even if that extra performance costs another $500 and is only 7% faster than the $700 card (1080 Ti) which uses the same GPU (GP102).  

2) the extra 1GB VRAM *might* help when pushing the sim to the absolute limit

Rob Ainscough has stated a number of times now he's seen VRAM usage peak at 10.8GB on his 1080 Ti in P3D v4 with settings maxed and tons of add-ons.  That's awfully close to the 11GB limit of the card...  Food for thought.

I remember someone somewhere saying P3Dv4 is pushing the limits of the current hardware. Which is of course right, if we start messing with TEXTURE_SIZE_EXP.

I question if these 11GB VRAM usage come from default P3Dv4 .cfg settings (sliders right, but nothing edited in the .cfg) or was for instance TEXTURE_SIZE_EXP been modded? Sounds very suspicious to me.

So all needs to be put into context. I can also say I want sharpest possible textures 100mi out @40,000ft, and need 100GB VRAM (figuratively speaking of course, no idea about the right number), but what's the point?

1 minute ago, SimonC said:

I remember someone somewhere saying P3Dv4 is pushing the limits of the current hardware. Which is of course right, if we start messing with TEXTURE_SIZE_EXP.

I question if these 11GB VRAM usage come from default P3Dv4 .cfg settings (sliders right, but nothing edited in the .cfg) or was for instance TEXTURE_SIZE_EXP been modded? Sounds very suspicious to me.

So all needs to be put into context.

Yeah, it was Rob Ainscough, long-time P3D beta tester.  He provided details regarding the settings and add-ons which resulted in this VRAM usage.  What do you mean by "suspicious"?  

Just now, TechguyMaxC said:

Yeah, it was Rob Ainscough, long-time P3D beta tester.  He provided details regarding the settings and add-ons which resulted in this VRAM usage.  What do you mean by "suspicious"?  

As in TSE was probably used...

Point me to the settings used please?

Three posts on that page by Rob to paint the whole picture.  

 

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