2080ti SLI Question - Best Mobo / Will my 1440p monitor bottleneck ? - Overclock.net - An Overclocking Community

Forum Jump: 

2080ti SLI Question - Best Mobo / Will my 1440p monitor bottleneck ?

 
Thread Tools
post #1 of 8 (permalink) Old 05-19-2019, 12:01 PM - Thread Starter
New to Overclock.net
 
SixStones's Avatar
 
Join Date: Jan 2009
Location: Lion City
Posts: 25
Rep: 1 (Unique: 1)
2080ti SLI Question - Best Mobo / Will my 1440p monitor bottleneck ?

Hi guys. Before I pull the trigger on another expensive purchase, I just wanna be sure first and not end up regretting so I could use some advice.

Currently my build consist of a 9900k 5ghz watercooled / 64GB of 3200mhz RAM, z390 Matx mobo and a 850w PSU

I have a Aorus 2080ti waterforce currently and I’m intending to get the air cooled Aorus 2080ti XTREME. According to techpowerup both cards are the same size in terms of width and length so the nvlink slot shouldn’t be an issue.

Obviously I will have to change my mobo and PSU

I am contemplating between the Aorus Z390 Ultra vs Asus Z390 Pro. I’m also open to any option because I want my GPU to run at 16x/8x

Secondly will my 1440p monitor bottleneck the card ?

I know that scaling is not that great on some game but I’m pretty much contented even if I get decent scaling / improvements in FPS.

My main motive is to get that extra FPS in games since my monitor is 165hz and most games I run now at max settings are between 120-140fps and since I got some spare cash Lying around from selling plenty of old hardware I thought why not.

But now my main concern is which z390 motherboard is the best to get max performance and also will it be fine to run at 1440p? I’m not into 4K

SixStones is offline  
Sponsored Links
Advertisement
 
post #2 of 8 (permalink) Old 05-19-2019, 12:01 PM - Thread Starter
New to Overclock.net
 
SixStones's Avatar
 
Join Date: Jan 2009
Location: Lion City
Posts: 25
Rep: 1 (Unique: 1)
Ps : I hope you guy can give me some advice as i will be heading to the store in the morning 🙂 thanks in advance!

SixStones is offline  
post #3 of 8 (permalink) Old 05-24-2019, 04:24 PM
New to Overclock.net
 
GosuPl's Avatar
 
Join Date: Aug 2014
Posts: 251
Rep: 6 (Unique: 5)
1. 9900K and Z390 platorm is not best choice for SLI. Lack of PCI-E lanes.
2.850W PSU is to weak for your setup with 2x 2080Ti.
3.1440p will be bottleneck.

CPU - i9 [email protected] GHz + 3.1 mesh
Mobo- ASUS RAMPAGE Extreme VI
GPU - 2x RTX 2080Ti FE (Samsung GDDR6)@2085/15400 + PG348Q 100 Hz / 3440x1440p / G-Sync
MEM - 32 GB G.Skill Trident Z @3800 Cl 16.16.16 T
AUDIO - ASUS Xonar Phoebus Solo + Sennheiser HD 380 PRO
PSU - Corsair AX 1500i
Case - Phanteks Enthoo Elite
GosuPl is offline  
Sponsored Links
Advertisement
 
post #4 of 8 (permalink) Old 05-24-2019, 04:40 PM
New to Overclock.net
 
Monstieur's Avatar
 
Join Date: May 2017
Posts: 71
Rep: 0
Sell it and buy a Titan RTX, or wait for the upcoming Super announcement. I had GTX 1080 SLI and it was a total waste of money. Your platform doesn't have enough lanes as a single RTX 2080 Ti is impacted by 4% at x8. 4% is a lot considering SLI scaling is already low.
Monstieur is offline  
post #5 of 8 (permalink) Old 05-24-2019, 04:44 PM
The last VRM burner
 
Join Date: Mar 2018
Posts: 1,259
Rep: 13 (Unique: 10)
Quote: Originally Posted by Monstieur View Post
Sell it and buy a Titan RTX, or wait for the upcoming Super announcement. I had GTX 1080 SLI and it was a total waste of money. Your platform doesn't have enough lanes as a single RTX 2080 Ti is impacted by 4% at x8. 4% is a lot considering SLI scaling is already low.

I'm fresh after testing RTX2080Ti on my rig - it's more than 4%

PC for all
(18 items)
CPU
i7 5775c @4.2GHz/3.8GHz
Motherboard
Gigabyte Z97X Gaming 5
GPU
Sapphire Radeon RX580 8GB Nitro+
RAM
2x KHX2400C11D3/8GX 11-12-12-32-1T-250
Hard Drive
Samsung 850 Pro
Hard Drive
Toshiba HDWD10 (P300)
Power Supply
Corsair CS650M
Cooling
Raijintek Tisis + Arctic Cooling MX4
Case
LianLi 330X
Operating System
Windows 10 64-bit Pro
Monitor
Benq GL2250 80Hz
Keyboard
Corsair Strafe Red
Mouse
SteelSeries Rival 310
Mousepad
SteelSeries QCk Mini
Audio
Audio in Motion SC808
Audio
AKG K240 Studio 1st rev
Other
NZXT Hue+
Other
Mayflash F300
▲ hide details ▲
BroadPwns is online now  
post #6 of 8 (permalink) Old 05-24-2019, 05:28 PM
New to Overclock.net
 
bp7178's Avatar
 
Join Date: May 2016
Posts: 64
Rep: 3 (Unique: 3)
Over the last few years I ran 1080, 1080 Ti and 2080 Ti cards in SLI. The 2080 Ti cards were on a X299 platform with a 7960x that was clocked pretty high so the PCIe lane limitation wasn't an issue, but I think the 4% figure may be a bit high depending on your particular use case.

With the 1080 on a ultrawide monitor with ultra settings in my game of choice, the second card kept me locked at 60 FPS in every instance at 3440x1440. When I upgraded to a 3440x1440 100hz panel, they weren't as good. Then came the 1080 Ti cards. They worked well. I anticipated getting a higher refresh ultrawide, so I knew I'd have issues with the 1080 Ti cards, keeping in mind SLI scaling isn't the best and is VERY dependent on your use case. I jumped on the 2080 Ti bandwagon, which in hindsight, I shouldn't have done. I'd rather have just gotten a Titan RTX if I was going to spend that amount of money, which is almost wasteful, IMO. I've gotten away from the ultrawide monitor in favor of two 1080p 240hz 24" (Asus XG248Q) which have been surprisingly good. 95% of the time with the ultrawide I'd be playing a game in a 1080p window, and watching something on YouTube on the other side of the monitor, so for my situation, two monitors really makes more sense.

All that being said...120hz is the sweetspot. 100hz is better than 60hz, but if you can hit 120hz you'll find the action nice and smooth. 144hz isn't as big of a diff as 100 to 120, just like 1440 to 240hz isn't all that much.

Poor scaling wasn't that big of a deal when the cards were $750, but at $1,300+, its a dumb place to spend money.

With a single 2080 Ti and the ultra preset in The Division 1, TD2 blows goats but that's another thread, I average in the high 100 to low 200s, which is more than enough.
bp7178 is offline  
post #7 of 8 (permalink) Old 05-25-2019, 06:32 AM
New to Overclock.net
 
GosuPl's Avatar
 
Join Date: Aug 2014
Posts: 251
Rep: 6 (Unique: 5)
TITAN RTX @2085/15000 is 2-5% faster than RTX [email protected]/15000 in gaming. Not worth at all. I have both GPU's and for gaming TITAN RTX is worst TITAN ever compared to Ti.


CPU - i9 [email protected] GHz + 3.1 mesh
Mobo- ASUS RAMPAGE Extreme VI
GPU - 2x RTX 2080Ti FE (Samsung GDDR6)@2085/15400 + PG348Q 100 Hz / 3440x1440p / G-Sync
MEM - 32 GB G.Skill Trident Z @3800 Cl 16.16.16 T
AUDIO - ASUS Xonar Phoebus Solo + Sennheiser HD 380 PRO
PSU - Corsair AX 1500i
Case - Phanteks Enthoo Elite
GosuPl is offline  
post #8 of 8 (permalink) Old 05-25-2019, 06:55 AM
Senior OCN Member
 
shilka's Avatar
 
Join Date: Oct 2011
Location: Denmark
Posts: 37,667
Rep: 2727 (Unique: 1621)
SLI is a waste of time and money and the support is all over the map and in many cases is actually slower than a single card
So you are better off just sticker to a single card and if its not fast enough buy a Titan as said

What brand and model is your PSU naming the amount of wattge is not saying much

Seravee
(29 items)
CPU
Intel Core I7 6850K
Motherboard
Gigabyte X99 Ultra Gaming
GPU
EVGA GTX 1080 FTW2
RAM
Kingston HyperX DDR4 Savage 3000 MHz
Hard Drive
Samsung 840 Evo 500 GB
Hard Drive
Samsung 860 Evo 1 TB
Hard Drive
Seagate Ironwolf Pro 8 TB
Hard Drive
Seagate Ironwolf 12 TB
Hard Drive
WD Ultrastar DC HC530 14 TB
Hard Drive
Seagate Ironwolf Pro 12 TB
Optical Drive
LG CH12NS30
Power Supply
EVGA SuperNova G2 750 watt
Cooling
Noctua NH-D15S
Case
Phanteks Enthoo Luxe Tempered Glass
Operating System
Windows 7 Ultimate 64 bit
Operating System
Windows 10 Home 64 bit
Monitor
Asus PG279Q
Monitor
LG 55C8 OLED TV
Keyboard
Corsair Strafe RGB MK.2 with Cherry MX Silent
Mouse
Roccat Kone EMP
Mouse
HyperX Fury S XL
Audio
Sennheiser HD 598
Audio
Onkyo TX NR646
Audio
Dali Opticon Vokal
Audio
x2 Dali Opticon 2
Audio
x2 Dali Opticon 1
Audio
Dali E12 F Subwoofer
Audio
Sennheiser HD-599
Other
CableMod E series PSU cable set
▲ hide details ▲
shilka is online now  
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off