Anyone got an idea of what amount of VRAM would be sufficient for MSFS 2020?  I did a flight around Paris, which completely consumed the 8GB of my gtx 1070 and also seemed to completely wreck smoothness, with fps diving into the low 20's at times.  I am using a single 2560 x 1440 res monitor.  Flying over the Los Angeles area uses about 7.3GB while holding a solid and decently smooth 30 fps, at which it's externally locked using the Nvidia Profile Inspector.   Looking to get a gtx 3080, but now I'm thinking that its 10GB may be not enough in the long run.  I might wait it out to see if the rumored 16 or 20 GB version of it gets released.

Edited September 7, 20205 yr by TheFamilyMan

https://www.guru3d.com/articles-pages/microsoft-flight-simulator-(2020)-pc-graphics-performance-benchmark-review,1.html

 

 

Thanks for that link.  Excellent information!  Guru3d does it again, as it has for years now: top rate performance analysis.  Here's a clickable link for all readers that follow:

https://www.guru3d.com/articles-pages/microsoft-flight-simulator-(2020)-pc-graphics-performance-benchmark-review,1.html

This answers my question, I definitely want at least 16GB.  With MSFS 2020 10GB is only now-proof, it that.  Though interestingly even with adequate vram in the super-dense terrain area they used to pull in +10GB, it still stuttered irregardless.  One of their final comments is telling:

As you have been able to see, something is bottlenecking at Full HD as the cards are just too close towards each other. This might be CPU related, but also can be a throttle based on retrieving satellite imagery from the cloud servers. We'll have to investigate a bit more to see what is going on there.

Reading between the lines here, why the meager performance of the 2080ti at 1920x1080?  Definitely not a gcard issue.

Edited September 7, 20205 yr by TheFamilyMan

I plan for MSFS2020 as my primary sim.

Since I have to wait for my hardware anyway ( Fulcrum Yoke, Honeycomb Bravo throttle and MFG Crosswind V2 graphite rudder Pedals), I think I will wait it out till I see the 3080 with 20Gb of ram and jump on it then. 

At that time I can see what upgrades I need to do for my motherboard and CPU.

I plan for a single 49"-55" 4k TV that will have 2.1 HDMI and 120Hz refresh rate. I will look at the HP Reverb G2 but I wear glasses and think taking leisurely flight with a 55" screen 36" away should fit the bill nicely. I also might have a head tracker but we will see.

All this will take up to a year to finish because of availability but I want 4K Ultra on almost all settings to get the most out of my investment.

Any news here?
Thinking about buying a RTX 3080 with 10 GB Vram.
AMDs new GPUs have a lot more Vram but are slighter worse in terms of Raytracing and DLSS performance.

What do you suggest?

1 hour ago, CallsignDE said:

Any news here?
Thinking about buying a RTX 3080 with 10 GB Vram.
AMDs new GPUs have a lot more Vram but are slighter worse in terms of Raytracing and DLSS performance.

What do you suggest?

If you don't need a new GPU right away, I'd suggest wait until specific MSFS benchmarks for AMD are available. It won't hurt to preorder a 3080 since you most likely won't receive one for weeks (if not months). You can always cancel if AMD delivers (both in performance and availability).

That 10GB of Vram should be enough, at least that's what I've gleaned from a number of tech fora. Unfortunately there doesn't seem to be a reliable way to see how much vram is needed. All sites only measure how much vram the application has reserved which is not the same as how much it is actually using.
On the other hand, having more than 10GB gives you one less thing to worry about at the very least.

Edited October 29, 20205 yr by orchestra_nl
deleted whitespace

2 hours ago, orchestra_nl said:

If you don't need a new GPU right away, I'd suggest wait until specific MSFS benchmarks for AMD are available. It won't hurt to preorder a 3080 since you most likely won't receive one for weeks (if not months). You can always cancel if AMD delivers (both in performance and availability).

That 10GB of Vram should be enough, at least that's what I've gleaned from a number of tech fora. Unfortunately there doesn't seem to be a reliable way to see how much vram is needed. All sites only measure how much vram the application has reserved which is not the same as how much it is actually using.
On the other hand, having more than 10GB gives you one less thing to worry about at the very least.

I've heard this argument, the VRAM needed versus reserved, but it seems spurious because whenever my RTX 2070 Super's 8 Gb is approached shortly thereafter performance degrades greatly so I think you can depend on realtime reported VRAM utilization as a surrogate for VRAM in use.  10Gb is far lower than what MSFS can use if you have a high end CPU, though you can certainly have a very decent experience w/ 10Gb.  RobA here has seen 19Gb in use on his Titan GPU.  16Gb seems to be the minimum if you don't want to be shopping for something better later or are happy w/ either having to stop the sim to adjust sliders, or are happy setting sliders such that you don't have to stop the sim.  Even my 8Gb GPU is ok most of the time, but again fly thru the right conditions and we have to stop and adjust.  And DX-12 will likely utilize more VRAM and MS/A are working on the DX12 port now we read so best take that into account before you cough up $700 for a 3080.

Don't forget that there is a rumor going around that FS2020 will move to DX12 in the future, so buy the max VRAM card you can afford. The issue in P3D and all other DX12-based cards is that DX12 is very RAM hungry, regardless of the application.