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Is SLI worth it nowadays?

post #1 of 8
Thread Starter 
Hi guys, i need to ask a basic but important question: is SLI (or crossfire) worth it nowadays?
I want ask it because i have a Zotac gtx 970 dual fan, and i have the opportunity to buy a second 970 for few bucks (euros tongue.gif); is a Gigabyte triple fan, but i saw on nvidia site that i can combine two different brands (or am i wrong?).

I don't know the status of sli support in newer games, for future proofing is better to wait and buy a single powerful card or with dx12 there will be more mgpu support?
I play @1080p in my 46" tv; no need for 2K or 144hz or other, maybe 4K in the next years.

My Card
https://www.zotac.com/us/product/graphics_card/gtx-970

The ┬┤other' 970 from Gigabyte


Thank you in advance
post #2 of 8
I'm still yet to see any real issues with SLI, only performance benefits (sometimes not huge benefits, but still benefits). Make sure you aware of SLI scaling for the card so you are know what kind of performance gain to expect.
If the card is cheap it's probably worth going SLI.
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Ol'Faithful
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post #3 of 8
I've had issue with support...games releasing without support updating months later sometimes never, games having buggy support, games having no support, I dropped my second card and built another computer idk if things changed since.

Performance wise, going two way sli works great with cards that scale. That's all you can do now anyway on the 1000 series I think. As said above cheap cards are worth pairing, or another scenario is driving 4K.

(Yes you can sli two different brands as long as they are the same chip)
Edited by saintruski - 9/15/16 at 12:49am
post #4 of 8
The cons to SLI are pretty widely known:

- Higher power consumption and heat from having double the cards
- At the mercy of drivers and SLI profiles being released or patched in a timely manner. If you stick to mainstream games this shouldn't be an issue, but if you like niche ones good luck!

I personally have no problems with my SLI 980Ti set up and find myself quite happy at 1440p. It did take a good week and a bit before the latest Deus Ex was smooth but there were plenty of other people having problems with the game as well.
post #5 of 8
I would hold off from SLI'ing the 970 due to its memory segmentation. Sure the cards would work great but as titles start asking for more VRAM, the 970's weakness comes into play and would be a bad experience overall. You'd rather stay single 970 for now and upgrade when a better card from next gen comes along or sell the current one you have upgrade to a Maxwell 980ti or AMD Fury if you don't want to go Pascal.
As for SLI and CFX, it had always depended on the developers and then the IHV's for support and if game developers support mGPU cards with their game engines, hardware vendors can just optimize for it via drivers to make the experience more better. With DX12 and Vulkan however, this support now shift more towards the developers due to the way in which the API would function.
post #6 of 8
Thread Starter 
Thanks all for the answers, i "studied" a bit and noticed only "some" AAA titles have mgpu support. Maybe i can ask my friend for a try, than i will decide for buy it or not. I also want to save enough money to buy a 7700k. It's an hard decision. Now i have a i5 6400, i think is enough to not bottleneck two 970's
post #7 of 8
SLI is great. I find more often games support SLI than not.

I had SLI 670s and those lasted me for a long time. I started with a single 670 in 2012, then upgraded to SLI 2 or 3 years later IIRC. I just now upgraded to a single 1080, which I will probably SLI in a couple years.

My recommendation when SLIing is to first see if a single card meets what you need now and get that. If your budget is really tight at the start, then maybe look at older cards for SLI. For example, SLI 670s are $200-220. Or if you're mega rich OFC SLI from the start if you don't care about anything but performance.

Otherwise the best choice is to buy a single GPU, then SLI later.
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Phoneix
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post #8 of 8
I would tell you to SLI them as they're (used to be) awesome in sli. I have just noticed that what ever Nvidia has done and a lot of recent game updates are starting to really hurt the 970s performance. I'm starting to get the 3.5GB+ performance hit bad now and never did before even at much higher than 1080P even with 4way SLI 970s. Now a lot of newer games are starting to hit the 3.5GB+ range and you have very poor framerates. I would say don't do it.
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