[HELP] is it possible/worth for me to add my second 1080 Ti GPU ? (NO SLI)

Zazou38

New Member
Hi,

I create this topic because i have a second unused 1080 Ti GPU and i want to know if it's possible and worth for me to add it to my system ? (NO SLI, mainly video editing usage)
I apologize for my low english level and thank everyone in advance for your support !

My system at the moment:
Motherboard : MSI Z370 Gaming M5 (https://us.msi.com/Motherboard/Z370-GAMING-M5/Specification)
CPU : Intel i7-8700K (https://www.intel.com/content/www/u...o-4-70-ghz/specifications.html?wapkw=i7-8700k)
GPU : x1 MSI 1080 Ti Gaming X (connected in my top PCI_E1: PCIe 3.0 x16)(https://us.msi.com/Graphics-Card/GeForce-GTX-1080-Ti-GAMING-X-11G/Specification)
RAM : 2 x 8 Go DDR4 3200MHz CL16 Corsair Vengeance (https://www.corsair.com/eu/en/Categories/Products/Memory/VENGEANCE-LPX/p/CMK16GX4M2B3200C16)
PowerSupply : 850 Watt Corsair HX850i (https://www.corsair.com/eu/en/Categ...-series-config/p/CP-9020073-UK#tab-tech-specs)
Cooling : Corsair H115i (https://www.corsair.com/eu/en/Categories/Products/Liquid-Cooling/Dual-Radiator-Liquid-Coolers/Hydro-Series™-H115i-280mm-Extreme-Performance-Liquid-CPU-Cooler/p/CW-9060027-WW#tab-tech-specs)
Storage : - SSD Samsung 960 EVO M.2 250Go (connected on my M2_2 slot Pcie ) (https://www.samsung.com/us/computin...ives/ssd-960-evo-m-2-250gb-mz-v6e250bw/#specs)
- HDD 2T0 on SATA
Monitor : 2k 144hz ROG SWIFT PG278Q (https://rog.asus.com/monitors/27-to-31-5-inches/rog-swift-pg278q-model/)


COMPATIBILITY ?

If i add my second 1080 Ti on my second PCIe slot, will it be compatible with my system ?
MotherBoard slots : 3 x PCIe 3.0 x16 slots (support x16/x0/x4, x8/x8/x4 modes)
Question 1 : So apparently its ok but i will be in x8/x8 mode, is it better than only one GPU in x16 mode ?

PCIE Lanes :
Question 2 : My CPU as a max of 16 pcie lanes, if i'm in x8/x8, my cpu will be able to use my 2 GPU and my SSD correctly ?

Power supply :
According to Cooler master power supply calculator my 850 watts will be enought for my dual 1080ti (it recommand 700watt)


WORTH ?
My usage of computer : I used to have a gaming usage of my PC, but nowadays i mainly use it for Première pro video editing (80%) and sometimes gaming (20%)
I know that without SLI, i wont be able to have better performance in gaming situation, but my goal is to mainly increase my video editing performances.
Question 3 : If we consider my system compatible with this dual GPU setup, will it be worth for me in term of video editing performance ?


Windows & Premiere pro configuration
Question 4 : After connecting my second GPU to my system, what settings on windows and première pro should i do to totally benefit from my dual GPU setup ?


Thanks for all your help and advices !



(Bonus question : if i give you 500$ to upgrade my configuration, what would you change ? :p)
 

Hellmut1956

New Member
I have a similar question regarding a second GPU.

I have one MSI RTX3080 with 10GB. I will operate 3 Monitors, each with a 3840x2160 resolution. 3x 3840 = 11520. This is more that the maximum resolution of my RTX3080 GPU. The reason for wishing this is that I just purchased a 32" monitor and the 2 28" monitors will be placed on each side of the 32" monitor. That would need to reduce the resolution of one 28" monitor to have this configuration work.

I have additionally 2 24" monitors, one of which is used by the GPU included in my CPU 11700k. That works fine so that I can connect 5 monitors to my PC.

If I would add a second RTX3080 GPU would I than be able to operate all 3 monitors with their maximum resolution?
 
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