Geforce 3080, 3080ti and 3090 compatibility

[leobubani]

Hi,

I'm looking to upgrade my two 1080ti for the new 3000 series and I'm currently in between the 3080, 3080ti and 3090. My main question is if these would be fully compatible with my system and if they'd fit inside the GPU slots since the 3000 series are quite larger than the previous ones. Initially, I'm looking to get two new GPUs to replace the 2x1080ti I have atm but if that turns out to be a bit too much for my current rig I might go with one of the superior end of the series like a 3080ti or 3090.

My current rig has:

AMD Ryzen™ 7 1700X, S AM4, 8 Core, 16 Thread,3.4GHz, 3.8GHz Turbo, 16MB Cache, 95W

ASUS ROG CROSSHAIR VI HERO, AMD X370, S AM4,DDR4, SATA3, M.2 (PCIe/SATA), 2-Way SLi/CrossFire,GbE

2x EVGA GeForce GTX 1080 Ti SC Black Edition GAMING11GB GDDR5X VR Ready Graphics Card, 3584 Core,1556MHz, 1670MHz

NZXT S340 Elite Desktop Computer Chassis, Mid Tower,Side Window, HDMI, 2x USB 3.0, mITX/mATX/ATX

Corsair Hydro Series H80i V2 All-In-One ExtremePerformance CPU Cooler with 120mm Radiator, 2x120mm Fan, Intel/AMD, TR4

 

[Captain_Bosh]

If your rig is for gaming only the 3090 is SLI compatible so no point buying two of the lesser cards unless you are mining or something that can utilize 2 without SLI. They are pretty big and will vary depending on the model you go with.
PCI-E 4.0 is backwards compatible with PCI-E 3.0 so you don't have to worry about that really. Performance hit is minimal too.

 

[leobubani]

Thanks for the quick reply, Bosh!

The rig is actually for video editing and 2d/3d animation which involves quite a lot of rendering but my guess would be that the general rule of thumb would be the same as for gaming? Meaning one 3090 would be a better deal than the 3080ti or 2x3080 or 2x3070ti?

Even if I get the 3090 which is physically the biggest of them all do you think it would fit all right inside the chassi considering I'll be replacing 2x1080ti for one 3090?

 

[FlyingFish]

Only the 3090 can run sli. No other 3 series card has the option or connector.
And if you go down that route, you will need lots of room, lots of cooling, a massive power supply, and really deep pockets.

 

[Harlequin]

You might want to consider upgrading your cpu to a 3000 series (3700X or even an R9 3900x), as Zen 2 offers some good upgrades over Zen1

 

[leobubani]

Yeah...I'm not sure the 3090 price would be entirely worth it, seems like a 1x3080ti might be more than enough for me atm. I mean you're right @FlyingFish buying the 3090 because it can get sli or Nvlink would mean a whopping £5.2k (give or take) just for the gpus.

Sticking to one 3080ti and maybe upgrading my CPU like @Harlequin suggested seems like a much better way to go.

 

[FlyingFish]

You would probably do better getting yourself the Telegram app, setup the FE notifications and get yourself a 3090fe for msrp. That's how plenty of people (myself included) have got their 30 series cards without paying scalped prices. Your only allowed one purchase, but at least its something.

 

[philo-sofa]

Agree with flyingfish: there are still 3090 drops and it is possible to get them. It’s not a bad option right now.

 

[Brun]

SLI is irrelevant for video or 3D rendering. Even if you have the option it shouldn't be enabled.

Two 3080s would work together perfectly well, and be much faster than a 3090. Until you run out of vram.