Help about SLI/Crossfire

[JacobKS]

Having 2 cards only gives you 1 VRAM of one of your card? if this is true what else do you get on a SLI/Crossfire rig?

[WellHello]

1 minute ago, JacobKS said:

Having 2 cards only gives you 1 VRAM of one of your card? if this is true what else do you get on a SLI/Crossfire rig?

 

Basically everything you need to know. TL;DR , yes , you get 2x4gb cards , you get only 4gb of memory . Cards in SLI or Crossfire work something like this : Consider a being the first card , b being the second card. Frames will be displayed as follows : a-1 b-2 a-3 b-4 a-5 b-6 and so on . Hell , sli is supposed to be a lot of problems. So , if you don't want headaches every new game and/or driver update , stick to a single piece of the best gpu you can get , instead of sli-ing weaker ones.

[i respawn.]

4 minutes ago, JacobKS said:

Having 2 cards only gives you 1 VRAM of one of your card? if this is true what else do you get on a SLI/Crossfire rig?

Yes, sli/cf clones the vram of two gpus so the game can access the data needed from  either gpu.so, u get the lowest vram in the chain.and it does significantly increase performence, but not as much as the previous card u add and not as much as it increases heat output and power consumption.

[i respawn.]

4 minutes ago, JacobKS said:

Having 2 cards only gives you 1 VRAM of one of your card? if this is true what else do you get on a SLI/Crossfire rig?

Yes, sli/cf clones the vram of two gpus so the game can access the data needed from  either gpu.so, u get the lowest vram in the chain.and it does significantly increase performence, but not as much as the previous card u add and not as much as it increases heat output and power consumption.

[i respawn.]

4 minutes ago, JacobKS said:

Having 2 cards only gives you 1 VRAM of one of your card? if this is true what else do you get on a SLI/Crossfire rig?

Yes, sli/cf clones the vram of two gpus so the game can access the data needed from  either gpu.so, u get the lowest vram in the chain.and it does significantly increase performence, but not as much as the previous card u add and not as much as it increases heat output and power consumption.

[agent_x007]

Basicly :
Game is "played" on both GPU's, and GPU driver switches between them to get more FPS.
"Two games" on two GPU.

I think driver doesn't simply choose first frame to be generated, but it offsets one of the card's in time, so that it should generate new frame when the other card can't (or did not finished on time).