2 different cards
- Thread starter rashuns
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shrapnel_indie
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I wouldn't recommend it. The 480 will leave the 750Ti in the dust, so the 750Ti could be a hindrance to performance. Also the only real way to take advantage of two distinct video cards like that involves DX12, and most games don't even attempt to allow for different GPUs.
EpIckFa1LJoN
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I don't think you can run two separate cards that way, they certainly would not work together. While you can have both installed in the same system you would need to program almost every program and setting to run off the desired one.
But there is really no point in having both in your system, the 750 would almost always be idle and unused since the 480 is much more powerful.
The only way to get two cards to work is if they are the same make (AMD or Nvidia) they cannot be used together if they are different.
AMD cards can use crossfire meaning if you have a 480 and say a 270 you could use both in CF and they would work together, ideally you want them to be the same chip though (two 480s)
Nvidia has a similar concept called SLI, but ONLY allows you to link two cards of the same chip (ie two 1070's two 1080's etc.) but doesn't offer it on every card. For example most cards ending in 50 and 60 cannot link but almost every (if not all) cards ending in 70 or 80 will be able to use SLI.
Another disclaimer in case you wonder later, linking two cards does not double performance, if you link two 1080's you don't get the performance of two 1080's because of what is known as "scaling." Two 1080's will still outperform a Titan X (Pascal) but not by much.
The only card I know of that scales extremely well like that is the 480, which will actually scale to almost 1080 speeds (and in a few games actually outperforms a 1080) when in crossfire with another 480. But almost no other card scales that well and as a rule of thumb when you use CF/SLI you get about 30-40% more performance over a single card.
But there is really no point in having both in your system, the 750 would almost always be idle and unused since the 480 is much more powerful.
The only way to get two cards to work is if they are the same make (AMD or Nvidia) they cannot be used together if they are different.
AMD cards can use crossfire meaning if you have a 480 and say a 270 you could use both in CF and they would work together, ideally you want them to be the same chip though (two 480s)
Nvidia has a similar concept called SLI, but ONLY allows you to link two cards of the same chip (ie two 1070's two 1080's etc.) but doesn't offer it on every card. For example most cards ending in 50 and 60 cannot link but almost every (if not all) cards ending in 70 or 80 will be able to use SLI.
Another disclaimer in case you wonder later, linking two cards does not double performance, if you link two 1080's you don't get the performance of two 1080's because of what is known as "scaling." Two 1080's will still outperform a Titan X (Pascal) but not by much.
The only card I know of that scales extremely well like that is the 480, which will actually scale to almost 1080 speeds (and in a few games actually outperforms a 1080) when in crossfire with another 480. But almost no other card scales that well and as a rule of thumb when you use CF/SLI you get about 30-40% more performance over a single card.
shrapnel_indie
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DX12 has the mechanisms to allow to disproportionate cards to work together. But as I stated, nothing really takes advantage of that feature due to the amount of work involved.
Evidence: http://www.tomshardware.com/news/microsoft-directx12-amd-nvidia,28606.html
I don't disagree about the differences being so big as to not be a problem.
EpIckFa1LJoN
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I have no experience with that but I can't imagine a 480 and a 1060 working as well as two 480s would (since 1060 is not SLI compatible) But I can see some budget scenarios with that being a viable option, but for now and in this particular scenario, I don't see a point, because a 750 is almost 3 times slower than a 480.
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