SLI or single beast?

[Shubhamsaxena.x]

Please help me

I want to build a PC for vfx compositing and heavy rendering

My budget is $ 6000

My questions are

1 - SLI or Single beast?

2 - What are the pros & cons of SLI only in work performance?

3 - which mother board to use if using SLI GPU?

4 - if SLI doesn't work properly, can i use single GPU over the same mother board? If yes, what's the process then?

5 - can every software may run with SLI? or some specifics are

6 - what actually matter in fast rendering and smooth performance?

My softwares are Adobe after effects cc 2018, premiere pro cc 2018, 3ds Max, v-ray, Maya.

[PineyCreek]

Single beast, unless you're getting two older SLI-capable cards for cheap.  Single new card will have better compatibility and less potential problems though.

[PineyCreek]

8 minutes ago, huilun02 said:

Yup. Although Nvidia appears to have left SLI to rot. The greedy buggers don't want people pairing old cards to keep up in performance, or pairing lower end products to get high end performance at a lower price. You also need identical GPUs for SLI to work. They just want to force people into buying newer products. The Nvidia we all know and love.

Mmm...AMD Crossfire's the same way these days, although there's some older tech in terms of pairing APU and discrete GPU graphics.

[Tam3n]

He's asking about Adobe and 3d rendering. I would say a single powerful card will be your best bet. If the renderer you will use can utilize cuda or opencl you can add as many compute devices (gpus) as you like, but it really doesn't have anything to do with sli which is a gaming feature. You will need to research this... Also sli typically does nothing for the 3d modeling viewport performance, so again a single more powerful card with more memory will be better. You can always add a second later if you find yourself using gpu based cuda/opencl rendering alot.

[O9B0666]

4 hours ago, huilun02 said:

1. Single beast

2. Pros = anything up to 40% better performance over single card, if the game supports SLI.

Cons = SLI easily causes issues. When SLI is not supported, the second card does nothing but waste power and impede air flow to the main card.

3. Just get a motherboard that explicitly supports SLI. It should be obvious

4. Yes. Just disable SLI in Nvidia control software

5. No. Only some games. GPU based renderers don't use SLI (afaik not on consumer level cards)

6. CPU matters a lot too. Some renderers don't use the GPU at all.

2. some games up to 90%, anything over 30% imo is worth it, and your damn sure not playing high/ultra games on a single card with over 60fps. I've never had a issue with running two cards, not once in going on 4 years, thats just what people say when they're anti sli and haven't truly ran two themselves, but will say they have on the forum. 
Who cares that it waste some power, its not under load using a ton, and just who cares its pennies, yeah a little airflow may be impeded but not really a big deal if your case has adequate fans and cooling.
3. yes
4. yes 
5. afaik rendering will not benefit from sli, so if thats OP's main reason for this setup i wouldnt sli.