Do Multiple Graphics Cards Make a Difference

[realSpoderman]

Do multiple graphics cards in my computer make a significant difference in my gaming experience, or do I have to get a certain number of cards for the game to play noticeably better?

[Katsunaka]

Some games benefit from SLI/Crossfire. Others only use 1 card. Which makes it the drawback for SLI. That you may or may not be using the card.

 

For the average person, SLI isn't needed. It's better to buy a higher end card than SLI a lower end one.

An example would be, buy a 1080, instead of sli'ing 2 1070s.

 

 

[minoplays]

Sometimes, but not normally, in some games it will actually decrease performance. It depends om the game optimisation.

[Space Reptile]

Good example of SLI : GTA V 

Bad example of SLI : Cities Skylines

 

it depends 100% on the game

[Enderman]

If you want more performance, the best option is to sell your card and use that money to buy a better one (unless you already have the best one, which currently is the titan XP)

 

There are several problems such as

-more cost

-more heat

-more noise

-more power consumption

-many games don't support multi-GPU (so you get 0 performance increase)

-some games only perform about 50% better, not twice as well as you might expect by adding a second card

-need to re-enable SLI every time your drivers update

[Cyracus]

Like Katsunaka said one more powerful card is always the suggestion because everything is coded to utilize 1 graphics card, not so many are coded for 2+ 

[Gonio]

Overall multi GPU should be avoided if there is a single card that can handle the situation properly aswell. Even with higher fps the result might still be less mooth because of frametimes that are overall slwoer with multi GPU setups. Plus the major thing it mostly depends on is proper implementation by gamedesigners. And well that overall sucks. Expect myself that in a decade we get rid of multi GPU at all for gaming.

 

Support has never been great, and imo it only gets worse. Think gamedesigners would be glad if it is gone since they get more and more stuff to focus on while being pressured with timelimits and budget more and more.

 

A current viable reason to go multi GPU is 4k Ultra 60+ fps, and above reso's or speeds. Below that there are single card solutions possible.

[Mick Naughty]

Depends on the game and how often you feel like upgrading. I have and always will run two cards. No single card is gonna give me the game play I want so I don't have a choice.

I do have another rig with one card so I can go back and forth and notice the difference. I only play bf and cod which always support sli.