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I have a geforce gtx 770 with 2gb vram and I'm using P3D v3.3.5. On every flight I have a high VAS usage (during takeoff approximately 3,1 gb are used, until landing VAS grows up to 3,8gb). While monitoring the temperatures of my procesor and graphics card I noticed that almost every mb of my graphic cards memory (vram) is used. The card has 2048mb and during the takeoff already 2006mb were used.

Could it be possible that P3D (Windows) swaps the additional required vram memory to the main memory (VAS)?

So would an upgrade to a 980Ti (6gb) or 1070 (8gb) reduce my VAS?


Thanks in advance

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Windows does not swap vram and vas here.


P3D will use as much VRAM as it gets.  VAS is another different story.  It is a 32 bit limitation and P3D v3.3.5 is okay with VAS (it isn't super fast in releasing memory but it is quite efficient when it needs to).

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If the application needs more than the 2GB of VRAM you have available the OS will try to allocate any remaining virtual address space you have remaining. However, I rarely say my GTX 750Ti use more VRAM than about 1.6GB.  I now have a GTX 980Ti with 6GB of which P3D uses about 2.3GB.

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