SLI 1080ti

[CCCP_DeadPool]

So, I'm planning to SLI 1080tis, but what is the best motherboard and processors for them? Im not an expert in computers and want some help with this. 

[Jurrunio]

why even SLI when 2080ti is more reliable in performance?

 

board and CPU choice depends on budget

[sphbecker]

SLI is dead, don't spend any money on it. Performance gains on are minimal and often non-existent.

[CCCP_DeadPool]

because my friend gave me one 1080ti also SLI isn't dead spbecker. 

[Fasauceome]

23 minutes ago, CCCP_DeadPool said:

but what is the best motherboard and processors for them?

ones that support SLI

 

what exactly do you intend to spend on this rig?

[CCCP_DeadPool]

Just now, Fasauceome said:

ones that support SLI

 

what exactly do you intend to spend on this rig?

Well what do you guys re-command?

[Fasauceome]

1 minute ago, CCCP_DeadPool said:

Well what do you guys re-command?

PCPartPicker Part List

Type	Item	Price
CPU	AMD Ryzen 7 3700X 3.6 GHz 8-Core Processor	$326.99 @ SuperBiiz
CPU Cooler	Noctua NH-U12S chromax.black 55 CFM CPU Cooler	$69.95 @ Amazon
Motherboard	Gigabyte X570 AORUS ELITE WIFI ATX AM4 Motherboard	$209.79 @ SuperBiiz
	Prices include shipping, taxes, rebates, and discounts
	Total	$606.73
	Generated by PCPartPicker 2019-11-20 16:50 EST-0500

 

[Harry Voyager]

Question is, what do you have already? At this point, do you have just one 1080 Ti, or do you have two? What CPU and Ram so you currently have? 

 

Also, which games do you plan to run on it, and do they support SLI? 

[Zando_]

45 minutes ago, sphbecker said:

Performance gains on are minimal and often non-existent.

In the latest titles, yeah. In older ones, no. Massive performance uptick in many older titles that actually support good SLI scaling. 
 
So basically this:

9 minutes ago, Harry Voyager said:

Also, which games do you plan to run on it, and do they support SLI? 

Although 1080 Tis are the best cards of their generation, and the only one this gen to outperform them consistently is the 2080 Ti, aaaaand it's not like you can sell the 1080 Tis for enough to get a 2080 Ti. So SLI 1080 Tis isn't a bad idea if you want the most performance possible without going for a 2080 Ti. Just:

53 minutes ago, CCCP_DeadPool said:

Im not an expert in computers

Some games can take some tweaking to get running, and you can have random/weird driver issues. I've still gotta figure out what's causing stability issues in my SLI rig . 

 

As far as mobos/CPUs to run, what's your budget? Unless someone has contradictory personal experience with Ryzen, I'd recommend Intel. Back when I ran SLI 1080s, they just worked better with my 8600K than with my 2700X (both on very nice boards). Coooould have been the 2700X bottlenecking whereas my 5Ghz 8600K didn't, but IIRC I had some other issues too (was a while ago). 

 

[jones177]

I used a Maximus Hero for 1080 ti SLI.

They are now on a Aorus ultra and doing fine.

 

Was with i7 8700k and now a i9 9900k.

 

Go 5ghz since SLI is only good for frame on games that support it.

A lot more frame than a 2080 ti.

[Mick Naughty]

I’d get the best cpu you can afford. 

 

My cpu barely handled a single regular 1080. Had to take the other card out. 

 

Needs to be good cpu to keep up with the game and frames. 

[sphbecker]

16 hours ago, Zando Bob said:

In the latest titles, yeah. In older ones, no. Massive performance uptick in many older titles that actually support good SLI scaling. 

What titles are these? Even back in the SLI haydays, most people said you could expect to see 20-30% increase on a very small number of titles by adding SLI. Is that kind of inconsistent increase worth the huge extra cost and power draw? If you have two 1080 Ti cards sitting around, sure, why not. If you are buying them...I don't get it. It seems you would be far betting off getting an RTX 2080 Ti.

 

Just my opinion, but my opinion probably isn't super valid. My rig only has a single 2070 Super, so it isn't like I am an ultra-high-end gamer to begin with.

[Zando_]

3 hours ago, sphbecker said:

It seems you would be far betting off getting an RTX 2080 Ti.

More expensive than two 1080 Tis even if you were to buy them lmao (they go for like $450 used, a new or used 2080 Ti is usually still over $900 AFAIK). OP said their friend gave them a 1080 Ti, IDK if they already had one, if they don't then it's $450 for another one vs selling their current 1080 Ti and adding $500+ on top for a 2080 Ti. Cheapest 2080 Ti rn is $1,049. 

3 hours ago, sphbecker said:

What titles are these?

So far I've tested Battlefield 4 (near perfect scaling), Battlefront 2015 (absolutely god-level perfection in scaling), and Destiny 2 (pretty solid scaling). I'm moving my setup to a new case soon and sorting out some stability issues, then I'll be able to test The Witcher 3, the full Tomb Raider reboot series, Battlefield 1, and a good bunch of other titles. Few solid Origin ones, a bunch of Ubi stuff (including almost the full Assassin's Creed Series), my Steam collection, and The Witcher and some classic Star Wars titles off GOG. Tbh should just test every single game in my library and see how they all go, lol. I still have some of the BFV trial left too

 

This is with my SLI GTX 780s btw, back when I ran my SLI 1080s I didn't have that much luck (was also noobier), but Battlefront 2015 still scaled perfectly (134-144fps at 4K Ultra noAA is a pretty beefed number tbh, 200fps flat at 1440p with the same settings, I think some sorta lock was in place). 

 

3 hours ago, sphbecker said:

My rig only has a single 2070 Super, so it isn't like I am an ultra-high-end gamer to begin with.

2070 Super is solid as fuck for anything up to 1440p high refresh rate, drop settings a bit more and you'll push 4K fine. I'm running a 1660 Ti right now, even that has surprised me with how powerful it is. 

[CCCP_DeadPool]

Sorry. The titles I'm wanting to play is Cyberpunk 2077, Doom 2019, and Hopefully Half-life ep3. I already have one aorus 1080 ti xtreme waterforce. I don't want to buy a 2080ti because the 3080 is near by. 

 

 

 

My current build is I7 4790k, Gskill 16gb, Asus Maximum hero 7, aorus 1080 ti xtreme waterforce, 1.5Bt SSD, and 850w evga. Cooling is going to be upgraded to Aqua Euro USA Max Chill 1/10hp for safe overclocking. 

[Zando_]

9 minutes ago, CCCP_DeadPool said:

Sorry. The titles I'm wanting to play is Cyberpunk 2077, Doom 2019, and Hopefully Half-life ep3. I already have one aorus 1080 ti xtreme waterforce. I don't want to buy a 2080ti because the 3080 is near by. 

 

 

 

My current build is I7 4790k, Gskill 16gb, Asus Maximum hero 7, aorus 1080 ti xtreme waterforce, 1.5Bt SSD, and 850w evga. Cooling is going to be upgraded to Aqua Euro USA Max Chill 1/10hp for safe overclocking. 

Don't think a 4790K wouldn't keep up too well with SLI 1080 Tis. Even SLI 1080 non-Tis can push around 144fps at 4K in properly scaling games, my 5Ghz 8600K bottlenecked them at 1080p (60-70% usage on each card), only let them run free (99% usage on both) at 1440p and 4K. 

Those titles aren't out yet, can't say how they'll scale with SLI. You said your friend gave you a 1080 Ti, is that in addition to your current one? Or do you only have one total? 

[CCCP_DeadPool]

1 hour ago, Zando Bob said:

Don't think a 4790K wouldn't keep up too well with SLI 1080 Tis. Even SLI 1080 non-Tis can push around 144fps at 4K in properly scaling games, my 5Ghz 8600K bottlenecked them at 1080p (60-70% usage on each card), only let them run free (99% usage on both) at 1440p and 4K. 

Those titles aren't out yet, can't say how they'll scale with SLI. You said your friend gave you a 1080 Ti, is that in addition to your current one? Or do you only have one total? 

current one. The witcher 3 was SLI supported so Cyberpunk 2077 should as well.

[Princess Luna]

11 minutes ago, CCCP_DeadPool said:

current one. The witcher 3 was SLI supported so Cyberpunk 2077 should as well.

That's really not how it works...

[Zando_]

6 minutes ago, CCCP_DeadPool said:

current one. The witcher 3 was SLI supported so Cyberpunk 2077 should as well.

Battlefront 2015 scales perfectly with SLI. 99% usage on both cards at any res where the CPU doesn't bottleneck (with my SLI 1080s when I had them, that was 1440p and higher). Battlefront II 2017, the sequel, was utter shit last I tried it. Didn't want to scale at all, had enough issues that it wasn't playable with SLI IIRC (had my 1080s a while ago, back when I actually still played BF2 2017).

Just because an older game supports SLI doesn't mean a newer one will, even from the same series. Will it support SLI? Maybe, CD Projekt Red seems like the type of devs to still care about SLI and hardware enthusiasts. But there's no way to know that as a fact unless they confirm it somewhere, so building a rig around a new title that may not support your setup wouldn't be the best idea. That said, a single 1080 Ti on its own is no slouch, so games that can't scale wouldn't be an issue unless you're playing at 4K and insist on ultra settings (you can drop many settings with no visual impact outside of screenshots, but massive performance gains). 

[CCCP_DeadPool]

On 11/21/2019 at 2:41 PM, Zando Bob said:

Battlefront 2015 scales perfectly with SLI. 99% usage on both cards at any res where the CPU doesn't bottleneck (with my SLI 1080s when I had them, that was 1440p and higher). Battlefront II 2017, the sequel, was utter shit last I tried it. Didn't want to scale at all, had enough issues that it wasn't playable with SLI IIRC (had my 1080s a while ago, back when I actually still played BF2 2017).

Just because an older game supports SLI doesn't mean a newer one will, even from the same series. Will it support SLI? Maybe, CD Projekt Red seems like the type of devs to still care about SLI and hardware enthusiasts. But there's no way to know that as a fact unless they confirm it somewhere, so building a rig around a new title that may not support your setup wouldn't be the best idea. That said, a single 1080 Ti on its own is no slouch, so games that can't scale wouldn't be an issue unless you're playing at 4K and insist on ultra settings (you can drop many settings with no visual impact outside of screenshots, but massive performance gains). 

did you try the 4k?

[Harpo]

On 11/20/2019 at 3:51 PM, Fasauceome said:

Motherboard Gigabyte X570 AORUS ELITE WIFI ATX AM4 Motherboard

I don't think this board will work, manual is here and it doesn't appear to have the ability to run 2x PCIEx8.  I just went through this with an MSI x570 board, and ended up replacing it with an x470.

[Otto_iii]

On 11/20/2019 at 4:30 PM, CCCP_DeadPool said:

because my friend gave me one 1080ti also SLI isn't dead spbecker. 

its dead for gaming, if this is for certain professional programs it may still have use, but its genuinely dead as a doornail for gaming.  If hes giving it to you and you are just using it for gaming then smile at him, take it, and resell it
 

On 11/20/2019 at 5:19 PM, Zando Bob said:

In the latest titles, yeah. In older ones, no. Massive performance uptick in many older titles that actually support good SLI scaling. 

Yeah, ancient titles that already get 300+ fps with a rx570

[Zando_]

6 hours ago, Otto_iii said:

Yeah, ancient titles that already get 300+ fps with a rx570

How ancient? Going mainstream, I'm talking stuff like the Battlefield series (I've personally tested BF4 which is from 2013), stuff from around that era. Or the Witcher 3, pretty sure that doesn't push 300fps at ultra on an RX570 (and it's from 2015).

[Mick Naughty]

Shit 10 series can’t do 300. No way amd could. Unless we are gonna go low class 1080p. 

 

 

[Otto_iii]

7 hours ago, Zando Bob said:

How ancient? Going mainstream, I'm talking stuff like the Battlefield series (I've personally tested BF4 which is from 2013), stuff from around that era. Or the Witcher 3, pretty sure that doesn't push 300fps at ultra on an RX570 (and it's from 2015).

My main point is don't build a new system with it

If it works for you and you only play 4-6 year old games i'm happy for you, my post is more a warning as i've seen more then one techtuber who has found in recent months they can't run almost any modern titles, even ones where they could trick the drivers into getting it to function. Neither Nvidea nore AMD are offering any additional support anymore, and likewise devs are dropping support for it out of games new enough to still be rolling out significant updates to the API.  

Both JayzTwoCents who usually does newer tech, and older hardware enthusiast TimmyJoe, both of which have been HUGE SLI/Crossfire enthusiasts for the longest time have both stopped recommending ever building a setup with one for gaming. 

Spoiler

 

With BF4, Witcher and some games from that time frame that are no longer having much changed by the devs SLI/Crossfire may continue to work.  But even then 2x new rx570s costs about 250-300$ on there own, you'd need a beefier PSU, a larger case, more or better case fans just to get it running happily, and for same or less cost of all that you could just get a 300-350$ RX5700 which in FireStrike has a nearly a higher average score then the best score ever posted by Duel RX570s (on same cpu)
 

Spoiler

 

[Zando_]

2 minutes ago, Otto_iii said:

My main point is don't build a new system with it

Yes. But if you're the OP and have a 1080 Ti already, getting a second 1080 Ti for $450 or so used is cheaper than getting a 2080 Ti for a cool $1100 new, $900 used if you're lucky.