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gboz

980Ti Low Memory Usage in P3DV4

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Anyone else seeing low video card memory usage in P3DV4?
My 6GB GTX980Ti at most is only using about 2GB.
This with Tessellation at Ultra, 4096 textures, that high definition texture box ticked, max autogen and driving a 4K monitor.
Card is running at maximum clocks and P0 power.
Sim is running great except for some slow texture loading close to the plane.
I'm monitoring video memory with the memory usage graph in Nvidia Inspector.
Would sure like to get that other 4GB working.

Thanks,
gb.


YSSY. Win 10, 6700K@4.8, Corsair H115i Cooler, GTX980Ti, 16GB G.Skill Trident Z F4-3200, Samsung 960 EVO M.2 256GB, ASUS Maximus VIII Ranger, Corsair HX850i 850W, Thermaltake Core X31 Case, Samsung 4K 65" TV.

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Dont understand that  I am using 3.5 to 4 with a terrain setting of 9 in the config file with  same GPU at 4k ORbx over Australia.

I changed the terrain setting to 12 and my Ram used went to 17.5 GBs and the gpu dropped from average 45 to 10 FPS.

You probably wont use (dont want to ) use all 6 GBs of VRAM check your GPU utilisation with your GPUZ sensors my 980Ti is running at 99% with the CPU averaging 55% evenly across the 6 cores.


A.Chryss - near YSCB

1. ASUS ROG STRIX X299 i9-7900X (delid - 4.9Ghz All Cores), EK 420x45 RAD, D5 Pump, EK monoblok, 32GBs GSkill 3600MHz ram 1T, Gig Aorus GTX1080Ti (2075Mhz), SSung 970 Evo 1Tb & 960Evo 500GB NVMe, 3xSSDs.

2. ASUS ROG STRIX X570 Ryzen 3900X - 4.3Ghz (12 cores) Corsair H115i, 32MHz ram 2x 970EVO ssd etc.  P3D v4.5 & v5, XP11 & DCS. 43"-4k + 27"-2k monitors & tablets. Warthog controllers, Honeycomb Yoke, Thrustmaster TPR pedals, TrackIR .

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Has to be your settings in P3D. I am suspicious about the slow loads near the plane because based on all I have read they should happen first and and your distant areas follow on.


A.Chryss - near YSCB

1. ASUS ROG STRIX X299 i9-7900X (delid - 4.9Ghz All Cores), EK 420x45 RAD, D5 Pump, EK monoblok, 32GBs GSkill 3600MHz ram 1T, Gig Aorus GTX1080Ti (2075Mhz), SSung 970 Evo 1Tb & 960Evo 500GB NVMe, 3xSSDs.

2. ASUS ROG STRIX X570 Ryzen 3900X - 4.3Ghz (12 cores) Corsair H115i, 32MHz ram 2x 970EVO ssd etc.  P3D v4.5 & v5, XP11 & DCS. 43"-4k + 27"-2k monitors & tablets. Warthog controllers, Honeycomb Yoke, Thrustmaster TPR pedals, TrackIR .

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5 hours ago, gboz said:

My 6GB GTX980Ti at most is only using about 2GB.
This with Tessellation at Ultra, 4096 textures, that high definition texture box ticked, max autogen and driving a 4K monitor.

Depends, flying at flight levels over the plains states the VRAM load might idle at 1.6GB but I've seen it load over 4GB on occasion. Same apparent configuration as you.


Dan Downs KCRP

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I see low GPU memory loads as well. Most sliders to the right and all kinds of eye candy enabled, my sim looks simply stunning and runs at 30 FPS minimum in high density areas.

I'm not that tech-savvy but why would I want the memory usage to explode?


Prepar3Dv5 | ASUS Maximus XI Code Z390 | i9 9900K 5 GHz | Corsair Vengeance RGB Pro 32 GB DDR4 3600 MHz | GeForce RTX 2080 Ti 11 GB GDDR6 MSI Lightning Z Windows 10 Pro 64 bit | Samsung 850 EVO 1 TB | Samsung 43'' 4K curved TV | HP Reverb 2 VR HMD | Agronn 737 Captain's Yoke | FSC 737 Throttle Quadrant | Saitek Pro Flight Rudder Pedals

 

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4 hours ago, Uteman said:

Dont understand that  I am using 3.5 to 4 with a terrain setting of 9 in the config file with  same GPU at 4k ORbx over Australia.

I changed the terrain setting to 12 and my Ram used went to 17.5 GBs and the gpu dropped from average 45 to 10 FPS.

You probably wont use (dont want to ) use all 6 GBs of VRAM check your GPU utilisation with your GPUZ sensors my 980Ti is running at 99% with the CPU averaging 55% evenly across the 6 cores.

setting 9 is the same as simply ticking 'use high res terrain' in the UI. It forces the tile texture size to 512.

The only meaningful setting is 10 or above. Even 10 requires a monster card.


Glenn

Ryzen 3700X, X570 Pro Wifi, 32GB 3600mhz RAM, Nvidia Titan Xp "Galactic Empire", RM750x PSU, H700 case, 2x NVMe M2 SSD, 1x SATA SSD

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