Nvidia 5080 in VR - initial thoughts

[Aapje]

2 hours ago, Tensorial_Architect said:

It is not that Nvidia is not interested in selling 5090s, ... they are VERY happy to rape wealthy American consumers for their flagship; The problem is that TSMC cannot produce the GB202 in moderate to high yields.

It's the opposite. The yields of GB202 are so good that they don't have a lot of defective chips. Only the defective chips go into the 5090. The ones that are close to perfect go into the professional cards for way more money.

When they used Samsung for the 30-series, the yields were so bad that they even sold extra cut down version of their top chip as the 3080. Of course, back then the miners bought a lot of them all up.

Edited April 6 by Aapje

[Mr_sukebe]

10 hours ago, Tensorial_Architect said:

Mr Sukebe, when opportunity presents, would you mind showing us a few pics of your setup? I'd love to see your Moza, Jetseat, and general layout.

Here we go:

the base is an 8040 aluminium frame which has “evolved” over time with additional bits hanging off it.

[Tensorial_Architect]

On 4/5/2025 at 5:29 PM, Aapje said:

It's the opposite. The yields of GB202 are so good that they don't have a lot of defective chips. Only the defective chips go into the 5090. The ones that are close to perfect go into the professional cards for way more money.

When they used Samsung for the 30-series, the yields were so bad that they even sold extra cut down version of their top chip as the 3080. Of course, back then the miners bought a lot of them all up.

That's interesting, I had heard from the Indonesian guys that work at the Zotac plant that yields were not that great. I guess I need to do a bit more reading!

 

Edited April 7 by Tensorial_Architect

[Tensorial_Architect]

Thanks Mr. Sukebe. That setup looks pretty intense. I like the pair of shoes ready to go! Sadly for me, my wife would never go for a setup like that. If I wanted that I would have to ditch her or vice versa.

Edited April 7 by Tensorial_Architect

[Mr_sukebe]

4 minutes ago, Tensorial_Architect said:

Thanks Mr. Sukebe. That setup looks pretty intense. I like the pair of shoes ready to go! Sadly for me, my wife would never go for a setup like that. If I wanted that I would have to ditch her or vice versa.

 

Thanks, I do find it very immersive.  Be aware that it has a few "compromises", i.e. that it's deliberately built to the size it is, to ensure that it'll fit in our spare room.  Hence why a stock solution from say NLR was never going to work.  As for negotiations with the better half, well it's been exactly that.  She gets to choose the car, kitchen, bathrooms and back garden.  I don't spend my free funds on drinking, smoking or fast cars.  In return, I get to do roughly what I want on my key hobbies, ie. the flight sim rig and my stereo (in the lounge).

[Aapje]

1 hour ago, Tensorial_Architect said:

That's interesting, I had heard from the Indonesian guys that work at the Zotac plant that yields were not that great. I guess I need to do a bit more reading!

They had issues with the data center chips, but that was related to the chiplet-design, so that would not have impacted the monolithic desktop/laptop chips. We can see by the A1 markings on the chips that they didn't do a respin of GB202 (the 5090 chip).

Nvidia did say that they didn't stop production of the data center chips, while they made a fix, so it's quite plausible that the delay and then low supply of the 50-series cards is because they allocated more capacity to the data center chips, to make up for the yield issues with the data center chips.

[Blackhawk163]

9 hours ago, Aapje said:

They had issues with the data center chips, but that was related to the chiplet-design, so that would not have impacted the monolithic desktop/laptop chips. We can see by the A1 markings on the chips that they didn't do a respin of GB202 (the 5090 chip).

Nvidia did say that they didn't stop production of the data center chips, while they made a fix, so it's quite plausible that the delay and then low supply of the 50-series cards is because they allocated more capacity to the data center chips, to make up for the yield issues with the data center chips.

Pretty much what I read and saw reported on. 
 

Nvidia will love to sell to the data centers where that sweet sweet money is before hitting the main consumer market en mass. Are there 5090s out there? Absolutely, but not as ubiquitous as the 80s on down.

[Blackhawk163]

So I take back my “meh” feelings from the 5080. What I attributed to mid performance is in fact a Nvidia driver problem. Which seems fixed on my end. Also I think I got a really good card as I was able to hit +435 on core and +2000 on memory and it is super stable in DCS @ 60fps with nearly all the bells and whistles turned on. Another thing that I was unable to do with my 4080 super was to keep the Pimax CL at its native resolution, I can now do that with the 5080. Lastly it seems that my 5080 wants to be used and setting the resolution multiplier to anything less than .9 brings the stutters when looking over the left and right sides. This is gone  at .9 up to native.

 

I’m still running OPXRTK with FFR and Quad views in tandem, and yeah, while not recommended at all, it continues to work FOR ME. DLSS is not implemented nor is any AA as the resolution more than makes up for it. 
 

overall, I’m very happy, and can’t wait until the 90s become more ubiquitous and affordable (lol)

Edited April 9 by Blackhawk163

[Qcumber]

6 minutes ago, Blackhawk163 said:

I was able to hit +435 on core and +2000

I've got +420 and +2000 stable in DCS..I can manage higher in synthetic benchmarks but it does not carry through to DCS. It might be because I use DLSS. 

[whitav8]

Please keep testing and tweaking this combination of 9800X3D and RTX 5080 or similar equipment. The concept of running in VR without motion reprojection (ASW,SSW,smoothing,...) would be such a wonderful state for VR. Maybe not for all of us, but we have lived through lots of VR stuttering for the last five or six years and it would be great to finally get over that hurdle. Obviously, it wouldn't be perfect - some temporary extra load of the GPU or terrain data loading,etc - but close to "fluid".

[Qcumber]

29 minutes ago, whitav8 said:

Please keep testing and tweaking this combination of 9800X3D and RTX 5080 or similar equipment. The concept of running in VR without motion reprojection (ASW,SSW,smoothing,...) would be such a wonderful state for VR. Maybe not for all of us, but we have lived through lots of VR stuttering for the last five or six years and it would be great to finally get over that hurdle. Obviously, it wouldn't be perfect - some temporary extra load of the GPU or terrain data loading,etc - but close to "fluid".

I am starting to get some very good results with the 9800x3d and 5080. 72Hz is overall probably the best option but I have been getting some surprising results at 90Hz. I need to do more testing then I will post.  

[Mr_sukebe]

I'm now getting lot of 72fps with a similar setup.  Just been out to play in the Apache.  Just wow.

[whitav8]

Have any of you done any special tweaking at the BIOS level either for the 9800X3D (Curve Optimizer, Overclocking, etc) or 5080? I'm not sure that matters much compared to game settings., but maybe every little bit helps. Also, any focus on maybe just CPU#1 or OS resource priority/isolation changes?

I'm working to get 72Hx/FPS for MSFS as well - much more difficult than DCS but interesting as well.

Thanks for leading the way. I get my 5080 next week.

[Qcumber]

2 hours ago, whitav8 said:

Have any of you done any special tweaking at the BIOS level either for the 9800X3D (Curve Optimizer, Overclocking, etc) or 5080? I'm not sure that matters much compared to game settings., but maybe every little bit helps. Also, any focus on maybe just CPU#1 or OS resource priority/isolation changes?

I'm working to get 72Hx/FPS for MSFS as well - much more difficult than DCS but interesting as well.

Thanks for leading the way. I get my 5080 next week.

So far I have just done a simple overclock of the 9800x3d using Adrenaline. And the MSI afterburner overclock I mentioned above. Nothing at BIOS level yet. I am testing an MSI curve overclock at +415 with a cap at 1000mV/3200Mhz. So far it is stable and still gives me a decent performance boost. If it helps I can post my results from 3d mark. 

[Blackhawk163]

20 hours ago, whitav8 said:

Have any of you done any special tweaking at the BIOS level either for the 9800X3D (Curve Optimizer, Overclocking, etc) or 5080? I'm not sure that matters much compared to game settings., but maybe every little bit helps. Also, any focus on maybe just CPU#1 or OS resource priority/isolation changes?

I'm working to get 72Hx/FPS for MSFS as well - much more difficult than DCS but interesting as well.

Thanks for leading the way. I get my 5080 next week.

Off the top of my head 9800x3d is at 5.25 -40 on the curve optimizer, 2200 on the memory. 1.20 mv cap (I’ll check it out later to confirm that) 

The Zotac OC card I have is running at +425, I dropped it down from 435 as Elite Dangerous didn’t like it, and memory at +2000. 
 

The only problem I’ve run into so far with this card (even then it may not be hardware related) is that the F4 module will only run at 32fps no matter what the settings are at. This is an  issue that I didn’t have with the 4080 super. Not only that, but then DCS as a whole gets locked at 32fps requiring a quit to desktop to get back my performance. 

Edited April 11 by Blackhawk163

[Mr_sukebe]

On 4/11/2025 at 3:52 AM, whitav8 said:

Have any of you done any special tweaking at the BIOS level either for the 9800X3D (Curve Optimizer, Overclocking, etc) or 5080? I'm not sure that matters much compared to game settings., but maybe every little bit helps. Also, any focus on maybe just CPU#1 or OS resource priority/isolation changes?

I'm working to get 72Hx/FPS for MSFS as well - much more difficult than DCS but interesting as well.

Thanks for leading the way. I get my 5080 next week.

Nope, running stock, not even with an overclock.

According to task manager, my GPU usage is typically under 70% even at 72fps.  My view being that having headroom is a good thing, for when things get more busy.  If anything, my 7800x3d seems to be more likely to max out.

So overclocking only to have even more headroom seems a little pointless.  Maybe if I had a 9800x3d

[Qcumber]

About 3 weeks now with the 5080 and after optimizing all my settings the performance is outstanding. It is very rare for fps to drop below 72. In a lot of situations I can run stable 90 fps. I'm very impressed. 

[Mr_sukebe]

9 hours ago, Qcumber said:

About 3 weeks now with the 5080 and after optimizing all my settings the performance is outstanding. It is very rare for fps to drop below 72. In a lot of situations I can run stable 90 fps. I'm very impressed. 

+1, same 

[D2k77]

interesting read this, I'm currently sporting with a 5800x3d/4080 and I am eyeing off an upgrade. Def going to get 9800x3d but can't decide if I should stick with the 4080 until the 5080ti is released with hopefully more Vram. Can't justify a 5090. 

[Mr_sukebe]

1 hour ago, D2k77 said:

interesting read this, I'm currently sporting with a 5800x3d/4080 and I am eyeing off an upgrade. Def going to get 9800x3d but can't decide if I should stick with the 4080 until the 5080ti is released with hopefully more Vram. Can't justify a 5090. 

 

I get the impression that the 5080 isn't that much faster than the 4080.  I'd expect a bigger improvement from a jump to the 9800x3d.

[Qcumber]

1 hour ago, D2k77 said:

interesting read this, I'm currently sporting with a 5800x3d/4080 and I am eyeing off an upgrade. Def going to get 9800x3d but can't decide if I should stick with the 4080 until the 5080ti is released with hopefully more Vram. Can't justify a 5090. 

I would wait for the 5080ti. Unless you manage to get an MSRP 5080 and sell your 4080 for a similar price. 

[D2k77]

49 minutes ago, Mr_sukebe said:

 

I get the impression that the 5080 isn't that much faster than the 4080.  I'd expect a bigger improvement from a jump to the 9800x3d.

yeah thats what I was thnking, its the similar vram that has me concerned for dcs.

 

11 minutes ago, Qcumber said:

I would wait for the 5080ti. Unless you manage to get an MSRP 5080 and sell your 4080 for a similar price. 

Seems more hassle then what its worth, I do run two gaming machines though. My Simrig has the 4080 with a 3 1440 screens for sim racing whilst i VR in flight sims. In the other machine I have a 3070 which is struggling in recent games and was hoping to slot in the 4080.

Will wait for the Ti when it comes at the end of the year.

[Mr_sukebe]

From what I've experienced, the VRAM isn't as big an issue as it appeared earlier this year.

DCS now provides not only the VRAM reserved, but also now the VRAM in use.  I've yet to see DCS use much above 12GB.  So whilst having 24+ would be useful longer term, right now, doesn't appear to be needed.