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SLI 1080 FTW & 2080Ti

a.habib
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Hi, I am new here. May I ask if I can SLI my existing EVGA GTX1080 FTW with a new RTX2080Ti with a 750W PSU?

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they have different standards for SLI.

The 1080ti you can sort of do it with other cads but is not worth and causes more issues.

The RTX uses NVLink which is a new standard and  cannot be SLI'd with older generation cards. 

(please correct me if i'm wrong) 

CPU AMD 5800x_____Asus Crosshair VIII_____Asus Strix LC 360_____RAM Corsair Dominator Pro 2x8Gb 3600mhz_____ASUS RTX 3080 Strix

PSU Corsair HX1000w_____CASE Lian Li 011 Dynamic (original choice right? w/9 UNI Fans)_____Keyboard Razer BlackWidow Chroma_____Mouse Razer Deathadder Chroma_____Headphones Bose QC25_____Monitor (1) Acer Predator XB1 144hz G-Sync  (2) Benq 144hz G-Sync

Microphone Blue Yeti Black

Razer Blade 14

Also an XBOX one s.

 

 

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6 minutes ago, a.habib said:

May I ask if I can SLI my existing EVGA GTX1080 FTW with a new RTX2080Ti with a 750W PSU?

No, you can only SLI GTX 1080s with other 1080s.

CPU: Intel Core i7-950 Motherboard: Gigabyte GA-X58A-UD3R CPU Cooler: NZXT HAVIK 140 RAM: Corsair Dominator DDR3-1600 (1x2GB), Crucial DDR3-1600 (2x4GB), Crucial Ballistix Sport DDR3-1600 (1x4GB) GPU: ASUS GeForce GTX 770 DirectCU II 2GB SSD: Samsung 860 EVO 2.5" 1TB HDDs: WD Green 3.5" 1TB, WD Blue 3.5" 1TB PSU: Corsair AX860i & CableMod ModFlex Cables Case: Fractal Design Meshify C TG (White) Fans: 2x Dynamic X2 GP-12 Monitors: LG 24GL600F, Samsung S24D390 Keyboard: Logitech G710+ Mouse: Logitech G502 Proteus Spectrum Mouse Pad: Steelseries QcK Audio: Bose SoundSport In-Ear Headphones

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2 minutes ago, Acid Panda said:

(please correct me if i'm wrong) 

You are not wrong but the fact that it uses NVLink and not typical SLI slots is just on top of the fact that you can't SLI two different GPU's (meaning that even if the slots were compatibile, it wouldn't work anyway).

 

OP, welcome to the forums. As stated, you can only SLI the same GPU (doesn't need to be the same brand though, if you have 1080 from EVGA you can use a Founders Edition 1080 or Asus etc.)

CPU: i7 6950X  |  Motherboard: Asus Rampage V ed. 10  |  RAM: 32 GB Corsair Dominator Platinum Special Edition 3200 MHz (CL14)  |  GPUs: 2x Asus GTX 1080ti SLI 

Storage: Samsung 960 EVO 1 TB M.2 NVME  |  PSU: In Win SIV 1065W 

Cooling: Custom LC 2 x 360mm EK Radiators | EK D5 Pump | EK 250 Reservoir | EK RVE10 Monoblock | EK GPU Blocks & Backplates | Alphacool Fittings & Connectors | Alphacool Glass Tubing

Case: In Win Tou 2.0  |  Display: Alienware AW3418DW  |  Sound: Woo Audio WA8 Eclipse + Focal Utopia Headphones

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You can only SLI identical Graphical Processing Units, so you can only SLI a 1080 with a 1080.

Personal Desktop":

CPU: Intel Core i7 8700 @4.45ghz |~| Cooling: Cooler Master Hyper 212X |~| MOBO: Gigabyte Z370M D3H mATX|~| RAM: 16gb DDR4 3333mhzCL16 G.Skill Trident Z |~| GPU: nVidia Founders Edition GTX 1080 Ti |~| PSU: Corsair TX650M 80Plus Gold |~| Boot:  SSD WD Green M.2 2280 240GB |~| Storage: 1x3TB HDD 7200rpm Seagate Barracuda + SanDisk Ultra 3D 1TB |~| Case: Fractal Design Meshify C Mini |~| Display: Toshiba UL7A 4K/60hz |~| OS: Windows 10 Pro.

Luna, the temporary Desktop:

CPU: Intel Core i7 10700KF @ 5.0Ghz (5.1Ghz 4-core) |~| Cooling: bq! Dark Rock 4 Pro |~| MOBO: Gigabyte Z490 UD |~| RAM: 32G Kingston HyperX @ 2666Mhz CL13 |~| GPU: AMD Radeon RX 6800 (Reference) |~| PSU: Corsair HX1000 80+ Platinum |~| Windows Boot Drive: 2x 512GB (1TB total) Plextor SATA SSD (RAID0 volume) |~| Linux Boot Drive: 500GB Kingston A2000 |~| Storage: 4TB WD Black HDD |~| Case: Cooler Master Silencio S600 |~| Display 1 (leftmost): Eizo (unknown model) 1920x1080 IPS @ 60Hz|~| Display 2 (center): BenQ ZOWIE XL2540 1920x1080 TN @ 240Hz |~| Display 3 (rightmost): Wacom Cintiq Pro 24 3840x2160 IPS @ 60Hz 10-bit |~| OS: Windows 10 Pro (games / art) + Linux (distro: NixOS; programming and daily driver)
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2 hours ago, Lathlaer said:

You are not wrong but the fact that it uses NVLink and not typical SLI slots is just on top of the fact that you can't SLI two different GPU's (meaning that even if the slots were compatibile, it wouldn't work anyway).

 

OP, welcome to the forums. As stated, you can only SLI the same GPU (doesn't need to be the same brand though, if you have 1080 from EVGA you can use a Founders Edition 1080 or Asus etc.)

Ok ?

but even if all nvidiot cards had nvlink u still could only sli a 1080 with a 1080 or a 2080 with a 2080

u couldn’t sli a 1080 with a 1080ti and have slightly worse performance than 2 1080tis because it doesn’t work like that 

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2 minutes ago, Ebony Falcon said:

Ok ?

but even if all nvidiot cards had nvlink u still could only sli a 1080 with a 1080 or a 2080 with a 2080

u couldn’t sli a 1080 with a 1080ti and have slightly worse performance than 2 1080tis because it doesn’t work like that 

Are you agreeing with me, disagreeing or paraphrasing what I just said? :D

CPU: i7 6950X  |  Motherboard: Asus Rampage V ed. 10  |  RAM: 32 GB Corsair Dominator Platinum Special Edition 3200 MHz (CL14)  |  GPUs: 2x Asus GTX 1080ti SLI 

Storage: Samsung 960 EVO 1 TB M.2 NVME  |  PSU: In Win SIV 1065W 

Cooling: Custom LC 2 x 360mm EK Radiators | EK D5 Pump | EK 250 Reservoir | EK RVE10 Monoblock | EK GPU Blocks & Backplates | Alphacool Fittings & Connectors | Alphacool Glass Tubing

Case: In Win Tou 2.0  |  Display: Alienware AW3418DW  |  Sound: Woo Audio WA8 Eclipse + Focal Utopia Headphones

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Just now, Lathlaer said:

Are you agreeing with me, disagreeing or paraphrasing what I just said? :D

Disagreeing because u said 1080ti u can sort of do it with other cards, and the fact is u can’t u can only do a 1080ti with a 1080ti in sli 

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Just now, Ebony Falcon said:

Disagreeing because u said 1080ti u can sort of do it with other cards, and the fact is u can’t u can only do a 1080ti with a 1080ti in sli 

Where did I say 1080ti?

CPU: i7 6950X  |  Motherboard: Asus Rampage V ed. 10  |  RAM: 32 GB Corsair Dominator Platinum Special Edition 3200 MHz (CL14)  |  GPUs: 2x Asus GTX 1080ti SLI 

Storage: Samsung 960 EVO 1 TB M.2 NVME  |  PSU: In Win SIV 1065W 

Cooling: Custom LC 2 x 360mm EK Radiators | EK D5 Pump | EK 250 Reservoir | EK RVE10 Monoblock | EK GPU Blocks & Backplates | Alphacool Fittings & Connectors | Alphacool Glass Tubing

Case: In Win Tou 2.0  |  Display: Alienware AW3418DW  |  Sound: Woo Audio WA8 Eclipse + Focal Utopia Headphones

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