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Thinking about going SLi 3090? Might want to think again.

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hallowen
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:22:51 (permalink)
True Dat, But I do have the option of selling one eventually and running one for gaming will be Killer!
post edited by hallowen - 2020/09/28 12:39:18

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Sajin
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:38:56 (permalink)
hallowen
True Dat, But I do have the option of selling one eventually and running one for gamming will be Killer!

Did you already buy a sli bridge too?
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hallowen
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:40:52 (permalink)
Yes, Surprisingly enough, Nvidia had them in Stock!

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#63
Sajin
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:42:13 (permalink)
hallowen
Yes, Surprisingly enough, Nvidia had them in Stock!


Ok. Please let us know if you're able to get sli working in any dx11 apps which supported sli including fire strike ultra.
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hallowen
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:44:52 (permalink)
Sajin

Ok. Please let us know if you're able to get sli working in any dx11 apps which supported sli including fire strike ultra.




You know I will try my best to see if it will. 

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Sajin
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:46:57 (permalink)

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ssj92
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 12:55:15 (permalink)
hallowen
Sajin

Ok. Please let us know if you're able to get sli working in any dx11 apps which supported sli including fire strike ultra.




You know I will try my best to see if it will. 


Thank you and good luck. 

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lantern48
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 15:47:18 (permalink)
Imagine spending over $3,000 to get maybe 25% more performance than a 3080.
 

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hallowen
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 16:05:22 (permalink)
lantern48
Imagine spending over $3,000 to get maybe 25% more performance than a 3080.
 


It's not like I haven't invested less in previous Rigs I have built in the past here at the EVGA Forums.

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#69
veganfanatic
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 16:48:29 (permalink)
Last foray for SLI in my shop was GTX 690 SLI for quad SLI
 
This setup still works and it is a beast but the lack of VRAM is a real problem
 
My RTX 2080 has 8GB which is much more practical but I would have been happier with 16GB GDDR6
 
 
 

  


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#70
thefinalhope
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 18:57:01 (permalink)
First gen in a while I won't be going SLI, just going to get a single 3090. How things are looking right now, I think this is the kiss of death for SLI support, if it wasn't already pretty much dead before.
#71
AHowes
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 20:45:56 (permalink)
SLI was awesome..

Started out with 2 monster 3d voodoo2 8mb cards, then quickly voodoo2 12mb cards. All I can remember afterwards was 6800gtx cards and then the famous Evga 8800gtx ultra cards (still have them and the dengerden water.bocks ;). (I know I'm forgetting a bunch now haha)

From their all I remember was nvidia 480 triple sli then doh.. they came out with 580s soom after that so I swapped them for quad sli 580s. Then like a few months later QuadFire AMD 7970s. Did I mention the blocks for all those! Nuts

Took a break from PC's for a few and then came back 970, then finally 1080 sli..1080ti sli and dabbled with 2080ti for a short time.

Will miss it.. not really! Haha. Buying to hi end cards and water blocks.. and lose on both but the blocks! Such a pain to resale.


See ya.. but I'd like to revisit I'm sure when I get bored in a few years.

I will admit though.. the build is always a project.. I make it such a project that its everything. When it's done and I've tested and overclocked it.. I quickly get bored and move on to something else and it will just sit un used forever.

I barely if ever game.. period.

But man is the build fun and all that build up to that magical first press of the power button and that "beep".. when ya know ya did good and everything works.. trying it all out on some new games and go wow its fast .. that's all fun. And I'm a sucker for it all haha.
post edited by AHowes - 2020/09/28 21:06:26

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#72
ssj92
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 23:10:46 (permalink)
I still have SLI in my laptop (780M SLI). 
 
My last desktop set-up was 690 I think.
 
I really don't get why nVidia purposely turned off profiles for DX11 titles but I hope someone can figure something out. 
 
3090 will be last one for SLI ever probably, unless we get chiplets lol 

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#73
thefinalhope
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/28 23:17:10 (permalink)
I never did understand the hate for SLI, I never had any micro stuttering issues in the games I played and seemed just as smooth as with one card.
#74
AngryAce
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/29 01:41:59 (permalink)
AHowes
SLI was awesome..

Started out with 2 monster 3d voodoo2 8mb cards, then quickly voodoo2 12mb cards. All I can remember afterwards was 6800gtx cards and then the famous Evga 8800gtx ultra cards (still have them and the dengerden water.bocks ;). (I know I'm forgetting a bunch now haha)

From their all I remember was nvidia 480 triple sli then doh.. they came out with 580s soom after that so I swapped them for quad sli 580s.



Ahhh, the GTX 480 space heaters.... I lived in Phoenix during that time. The middle card baked even more than usual in the summer. I still have one left for the GPU showcase.
 
 

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#75
hallowen
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/29 04:49:57 (permalink)
When the RTX series first arrived and there was No More 4-way SLI, I'll still be trying one last time with two RTX 3090's in 2-way SLI.
 
Over the Years here at EVGA.com, I have had GTX 295's in Quad-SLI / GTX 680 Classifieds in 4-way SLI / GTX 780's in 4-way SLI / GTX 980 Ti's in 4-way SLI and My Previous Benching Rig was 4 water chilled Titan X Hydro Coppers with Phase Change on the i7-5960X.
 
 

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#76
saywhite
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Re: Thinking about going SLi 3090? Might want to think again. 2020/09/29 05:47:52 (permalink)
Could you also test if the custom profile from Nvidia inspector will work or not? Really interested to see the result to decided if I should get a second 3090 or not...
 
Thanks!
#77
-jacQues-
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 03:18:00 (permalink)
Sajin
Ok. Please let us know if you're able to get sli working in any dx11 apps which supported sli including fire strike ultra.

+1
 
Thanks in advance hallowen!
 
Still doubting between 2×RTX3090 and RX6900XT.
#78
transdogmifier
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 05:16:41 (permalink)
hallowen
lantern48
Imagine spending over $3,000 to get maybe 25% more performance than a 3080.
 


It's not like I haven't invested less in previous Rigs I have built in the past here at the EVGA Forums.




I always find this kind of stuff (the first commenter) to be asinine anyway....it's your money...you earned it...you want to buy two cards, it's
all you and all good...
 
 
Do it..ignore the idiots ...
 
Seriously....make decisions for yourself and not someone else...and don't ridicule people for spending their money the way THEY want to. It's not yours.
You gonna give him the money to buy cards? Then you can make commentary and tell him what to buy...
 
Otherwise, shut it.
 

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#79
Frammish
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 05:49:51 (permalink)
Except in data applications they don’t run SLI anyway. It’s just parallel computing.
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 06:28:08 (permalink)
DrMadness1987
How you gonna buy 2 when your site is such trash can't even buy one. Sat at finalizing order for 40 mins this morning clicking place order for the product to finally go out of stock. Great job!
 
Cool down, my friend! Sajin is a user like us! So he has no control over NVIDIA or EVGA! We are all in the same boat right now. Just be patient and do fall for the scalper trap! And in a few months,  you will be laughing when you look back! So go take a beer and just watch the chaos! lol


Sajin
Might want to think about that before you pull the trigger. Sli is disabled in all dx11 games (Implicit sli) on ampere. Only certain dx12/Vulkan games will work at this time...

https://nvidia.custhelp.c...tive-game-integrations
https://www.futuregamerel...tx-3080-3090-gpus/amp/


Yeah, Sajin. The numbers do not look good for SLI. Personally, SLI has never worked well for me. Very buggy and not the performance expected for the money spent... And the support for SLI has never been great anyways.

Just having fun! Anime, giant robots, and games! All to be enjoyed equally!
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NewValaric
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 06:35:28 (permalink)
hallowen
 
Sajin
Don’t know if sli is going to work in 3dmark atm.

Edit: Just looked at the 3dmark leaderboard. Looks like 3090 sli works there.

Sajin, You must know me by now....
 
I really thought long and hard about not going 3090 SLI , But then I decided at my age (and since I'm Not getting any younger) to just Do It!
 
Thanks to some help from old friends (and just plain luck), The "Twins" will be arriving next week.

 
 
 
 
 
 
 




My eyes! My eyes!!!
 
lol
 
Seriously, congratulations, halloween!!!
 
Please post the numbers when you have a chance to tests the Twins!

Just having fun! Anime, giant robots, and games! All to be enjoyed equally!
#82
irakandjii
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 07:39:55 (permalink)
Some facts:
  • SLI still works for parallel distributed processing.  So SLI will still work for a number of workstation loads that use this programming paradigm.  There are some benchmarks that support SLI and a number of engineering and "creator" applications support SLI.  It is also useful to note that these programs tend to be memory "hogs" so it all makes "business" sense for the 3090 in this market space.
  • Modern games that use DLSS and Real Time Ray Tracing cannot benefit from SLI at this time and are unlikely to in the future.  You would need an extra software layer in the pipeline to selectively allocate tasks across the GPUs.  At this time the overhead is prohibitive in terms of both cost and complexity.
That being said, if you are a competitive over clocker or case modder 3090's make sense in the same way dragsters or show cars make sense.  You would not drive them to get groceries, but boy oh boy in the right setting they are both massively fun and gratifyingly!  Clearly providing the owner great pleasure. 
 
Grats! Halloween have fun with them
#83
zurvv
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 08:16:26 (permalink)
irakandjii
Some facts:
  • Modern games that use DLSS and Real Time Ray Tracing cannot benefit from SLI at this time and are unlikely to in the future.  You would need an extra software layer in the pipeline to selectively allocate tasks across the GPUs.  At this time the overhead is prohibitive in terms of both cost and complexity. 

 
How is the a fact?  /me points at Port Royal 
SLI could work ... if a game dev supported it. 
 
@hallowen haters are going hate :) I'm 100% behind you!
Did you get the optiums block for the FTW? I sadly couldn't get 2 3090 FTWs... but i have two FEs, i think i'll shutmod those. (on air, they are performing better than my ftw) 
post edited by zurvv - 2020/10/25 08:38:07

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#84
STR8_AN94BALLER
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 09:02:15 (permalink)
if game devs weren't lazy bastards maybe sli could've lived, just saying
#85
irakandjii
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 09:17:24 (permalink)
zurvv
irakandjii
Some facts:
  • Modern games that use DLSS and Real Time Ray Tracing cannot benefit from SLI at this time and are unlikely to in the future.  You would need an extra software layer in the pipeline to selectively allocate tasks across the GPUs.  At this time the overhead is prohibitive in terms of both cost and complexity. 

 
How is the a fact?  /me points at Port Royal 
SLI could work ... if a game dev supported it. 
 
@hallowen haters are going hate :) I'm 100% behind you!


@zurvv You may have a point regarding Port Royal.  It is however a benchmark and may have been optimized for SLI given its stated purpose.  I am now curious on how they are handling Ray Tracing across multiple GPU's where the end points of the ray lie in different GPU's.  Somehow the RT cores need to be coordinated,  your insight into how this is done would be really helpful.
 
DLSS uses pattern recognition and deep learning algorithms to present the image. With DLSS you are looking for "patterns of pixels" which get mapped by the AI into a database of "objects" which are then rendered to the display.  If the patterns are broken up across multiple GPU's it would be much more complicated to execute the look-up.  This is why a "game specific" extra layer is likely needed in the pipeline prior to allocating work across the GPU's.
 
You can certainly use multiple GPU's to train the system  (build the database) and create the game.  It is unclear to me how you would use multiple GPU's at runtime to increase FPS while playing the game.
 
How you spread this work across multiple GPU's in SLI is unclear to me for the purpose of increasing FPS. @zurvv I would really appreciate your insight into how this is done.
 
In theory, SLI could work for games.  But there is a LOT of work that would be game specific and it is unclear if developers would recover their investment by providing it. 
 
BTW I love what Halloween is doing!  The SLI rigs he has posted are real works.  I admire them.
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Ciddharthas
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 09:37:58 (permalink)
irakandjii
zurvv
irakandjii
Some facts:
  • Modern games that use DLSS and Real Time Ray Tracing cannot benefit from SLI at this time and are unlikely to in the future.  You would need an extra software layer in the pipeline to selectively allocate tasks across the GPUs.  At this time the overhead is prohibitive in terms of both cost and complexity. 

 
How is the a fact?  /me points at Port Royal 
SLI could work ... if a game dev supported it. 
 
@hallowen haters are going hate :) I'm 100% behind you!


@zurvv You may have a point regarding Port Royal.  It is however a benchmark and may have been optimized for SLI given its stated purpose.  I am now curious on how they are handling Ray Tracing across multiple GPU's where the end points of the ray lie in different GPU's.  Somehow the RT cores need to be coordinated,  your insight into how this is done would be really helpful.
 
DLSS uses pattern recognition and deep learning algorithms to present the image. With DLSS you are looking for "patterns of pixels" which get mapped by the AI into a database of "objects" which are then rendered to the display.  If the patterns are broken up across multiple GPU's it would be much more complicated to execute the look-up.  This is why a "game specific" extra layer is likely needed in the pipeline prior to allocating work across the GPU's.
 
You can certainly use multiple GPU's to train the system  (build the database) and create the game.  It is unclear to me how you would use multiple GPU's at runtime to increase FPS while playing the game.
 
How you spread this work across multiple GPU's in SLI is unclear to me for the purpose of increasing FPS. @zurvv I would really appreciate your insight into how this is done.
 
In theory, SLI could work for games.  But there is a LOT of work that would be game specific and it is unclear if developers would recover their investment by providing it. 
 
BTW I love what Halloween is doing!  The SLI rigs he has posted are real works.  I admire them.


irakandjii
zurvv
irakandjii
Some facts:
  • Modern games that use DLSS and Real Time Ray Tracing cannot benefit from SLI at this time and are unlikely to in the future.  You would need an extra software layer in the pipeline to selectively allocate tasks across the GPUs.  At this time the overhead is prohibitive in terms of both cost and complexity. 

 
How is the a fact?  /me points at Port Royal 
SLI could work ... if a game dev supported it. 
 
@hallowen haters are going hate :) I'm 100% behind you!


@zurvv You may have a point regarding Port Royal.  It is however a benchmark and may have been optimized for SLI given its stated purpose.  I am now curious on how they are handling Ray Tracing across multiple GPU's where the end points of the ray lie in different GPU's.  Somehow the RT cores need to be coordinated,  your insight into how this is done would be really helpful.
 
DLSS uses pattern recognition and deep learning algorithms to present the image. With DLSS you are looking for "patterns of pixels" which get mapped by the AI into a database of "objects" which are then rendered to the display.  If the patterns are broken up across multiple GPU's it would be much more complicated to execute the look-up.  This is why a "game specific" extra layer is likely needed in the pipeline prior to allocating work across the GPU's.
 
You can certainly use multiple GPU's to train the system  (build the database) and create the game.  It is unclear to me how you would use multiple GPU's at runtime to increase FPS while playing the game.
 
How you spread this work across multiple GPU's in SLI is unclear to me for the purpose of increasing FPS. @zurvv I would really appreciate your insight into how this is done.
 
In theory, SLI could work for games.  But there is a LOT of work that would be game specific and it is unclear if developers would recover their investment by providing it. 
 
BTW I love what Halloween is doing!  The SLI rigs he has posted are real works.  I admire them.





As soon as I saw the Port Royal benchmark, I was thinking, "Dang I want to play that game!  It looks awesome!"  And then when I saw that it wasn't even a game:






CPU: i7 10700k @ 5.0 GHz with 360mm Corsair H150i Elite LCD cooler
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#87
Viper97
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 09:55:50 (permalink)
DrMadness1987
How you gonna buy 2 when your site is such trash can't even buy one. Sat at finalizing order for 40 mins this morning clicking place order for the product to finally go out of stock. Great job!



I always like the new comers commenting on what they believe to be truth. Here's the truth newbie, all vid card, MB launches always are in demand and supply is weak. Get over it. Thank you.
 


 
#88
Sajin
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 13:25:02 (permalink)
Hallowen has decided to stick to single card.
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mobhill
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Re: Thinking about going SLi 3090? Might want to think again. 2020/10/25 14:39:47 (permalink)
SLI never worked out very well for me either, always seemed to be problems. I'm sure it could have worked out if it was focused on more, but truth is developers aren't going to spend a lot of time developing for the 0.01% of people who would really use it. Oh well, maybe sometime down the road it will come back.
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