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Dumpster.-

Am I An Idiot?

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Posted · Original PosterOP

I love LTT, after watching for a few years, I decided that I thought I'd be a real cool kid and buy a nice 1440p 165hz monitor (The Dell S2417DG that I saw in a video). Then I started playing Rainbow Six Siege in 1440p and realized I could only get about 95 fps with the settings I wanted (PC Specs: i7-8700k,1080, 16GB 2666mhz RAM).Naturally, because I hate money, I bought a slightly larger PSU and another 1080 (used/sweet deal on eBay). When the GPU came in the mail, I immediately installed it and realized the cards were different heights and my HB Bridge wasn't going to work - 'oh well' I thought - as I purchased 2 ribbon SLI cables on Amazon.

 

Fast forward 2 days and boom! I get everything hooked up! BUT WAIT - I have to benchmark it first!

 

No SLI benchmarks (single 1080)

1440p : https://imgur.com/JOVsJ4K

1080p : https://imgur.com/S84neW2

 

Cool results, right? Anyways I went and plugged in the ribbon cables and enabled SLI. Here were my results:

 

SLI Benchmarks

1440p : https://imgur.com/RCyvVh9

1080p : https://imgur.com/bcfRID4

 

I've tried googling relentlessly, but all of the R6S SLI threads/videos are from circa 2016-2017 when you had to use Nvidia Inspector to get SLI working. Currently, there is no Rainbow Six Siege in Nvidia Inspector - it is listed as an officially supported game.

 

What am I doing wrong (or not doing)? I feel so fucking stupid.

 

Things I have done:

- Verified driver was up to date

- Verified Windows was up to date

- Slapped myself with a fish

- Restarted PC

- Disconnected second monitor

- Contacted Ubisoft support (literally 0 help)

_____________________________________________________________________________________________________________________________

tl;dr  'only' getting 95 fps in Rainbow Six Siege 1440p, bought a second 1080, bought SLI ribbon cables due to different gpu card heights (RIP HB BRIDGE), got DECREASED performance after enabling SLI in Nvidia Control Panel. Wtf am I doing wrong?

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Sounds like poor optimization. If you love the game, sell the cards and get a better one. Im stuck with the same issue mainly because of the cpu not keep up with the frames/game.


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Yea, wish a 1080ti could get 200 frames in BO4 at 1440p. 


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I'm sorry my friend but you should've done some research first. Rainbow 6 is a game known to have horrible SLI scaling: it's normal to see the negative scaling that you had happen. It really is that bad. You would've been better off just selling your 1080 and buying a 1080 ti/2080.

 

At this point if you want better performance I would recommend you sell the two 1080s and buy a 1080 ti or 2080. THAT would at least give you a 30% ish performance improvement


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Hi

 

I have 2 GTX 1080 ti in sli. On some games it is fantastic. On others the frame rate is lower than a single card.

 

To give you an example.

Shadow of Mordor with a single 1080 ti at 3440X1440 averages 127fps. With SLI it averages 216fps. 

With Skyrim SE the frame rate Drops about 5fps with SLI. I disable the second card to play.

 

The way I see it, if I get 25% usage on the second card it is a win.

 

I don't buy cards to do SLI. The second card comes from my other computer that now has a RTX 2080 ti. 

If you have more than one gaming computer in a household it is a good idea to buy cards that are SLI compatible.  

 

With your monitor choice SLI makes sense. Not even my RTX 2080 ti could run it full out on most games,

 

 

 

 


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17 minutes ago, corrado33 said:

 

F@H Team Rank: 95 ? 

Technically it’s all on the same line (on desktop)


F@H Team Rank: 51                                                              A single, faster GPU is better than two slower ones in SLI

 

My Build, v2.1 --- CPU: i7-8700K @ 5.2GHz/1.288v || MoBo: Asus ROG STRIX Z390-E Gaming || RAM: 4x4GB G.SKILL Ripjaws 4 2666 14-14-14-33 || Cooler: Custom Loop || GPU: EVGA GTX 1080 Ti SC Black, on water || PSU: EVGA G2 850W || Case: Corsair 450D || SSD: 850 Evo 250GB || Storage: WD Blue 2TB || G502 & Glorious PCGR Fully Custom 80% Keyboard || MX34VQ, PG278Q, PB278Q

Audio --- Headphones: Massdrop x Sennheiser HD 6XX || Amp: Schiit Audio Magni 3 || DAC: Schiit Audio Modi 3 || Mic: Blue Yeti

 

My Truck --- 1998.5 24v Cummins || ECSB || 47RE, Goerend triple disk TC & shift kit || 4" Turbo Back, 22" KMC XD Bombs, Airdog II-4G Lift Pump

 

The Experiment --- CPU: i5-3570K @ 4.0 GHz || MoBo: Asus P8Z77-V LK || RAM: 16GB Corsair 1600 4x4 || Cooler: CM Hyper 212 Evo || GPUs: Asus GTX 750 Ti, MSI GTX 1080 Ti Gaming X || PSU: Corsair TX750M Gold || Case: Thermaltake Core G21 TG || SSD: 840 Pro 128GB || HDD: Seagate Barracuda 2TB || Total invested: $360 USD (excluding 1080 Ti)

 

R.I.P. Asus X99-A motherboard, April 2016 - October 2018, may you rest in peace. 5820K, if I ever buy you a new board, it'll be a good one.

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That game sucks for SLI/xfire

 

 

ff6fxvsgor311.jpg

 

I have a 480 xfire and it suprisingly works great with Fallout 4 or no man's sky, but it bites the dust on the witcher 3 or saints row 4, my secret is that I always use vsync so I don't get weird framerates plus my screen is only 85hz


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u doubled down on a 1080 to sli i wouldn't even use that setup for 1440p 165hz even if sli worked decently, shoulda sold the 1080 and grabbed a 2080 ti.

 

We all make mistakes, and i've made worse, hell i've made some sorta mistake with every build, so no you aren't an idiot.


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Hmm...I thought R6 supported nVidia SLI -- or at least, those were the rumors.

Running two R-Fury's in Crossfire, and can confirm second AMD GPU does nothing, or game has no AMD Crossfire support.


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Sell the 1080s and buy a 1080ti or 2080ti.  SLI is dead and broken.  You have just learned a lesson that many before you have learned.  The single fastest card you can afford is the solution.  SLI or Crossfire....never again.


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Posted · Original PosterOP
21 hours ago, DocSwag said:

I'm sorry my friend but you should've done some research first. Rainbow 6 is a game known to have horrible SLI scaling: it's normal to see the negative scaling that you had happen. It really is that bad. You would've been better off just selling your 1080 and buying a 1080 ti/2080.

 

At this point if you want better performance I would recommend you sell the two 1080s and buy a 1080 ti or 2080. THAT would at least give you a 30% ish performance improvement

Thanks guys.

If anyone is interested in a EVGA 1080 ftw lmk lol

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