Has an extensive test ever been done to determine the precise impact of using two GPUs versus one on input lag?
I was considering looking into a dual GPU solution, but this issue usually makes me prefer a more expensive single GPU solution. (regardless of loss of performance)
The best info I could find was from Anand. (http://www.anandtech.com/show/2803/7) Judging from that info it *appears* that a single GPU with a render ahead limit of 1 may have up to ~20ms less GPU time than a dual GPU setup.
The article stated it was an area that they would like to explore later but here we are, over a year later, with no report...
I was considering looking into a dual GPU solution, but this issue usually makes me prefer a more expensive single GPU solution. (regardless of loss of performance)
The best info I could find was from Anand. (http://www.anandtech.com/show/2803/7) Judging from that info it *appears* that a single GPU with a render ahead limit of 1 may have up to ~20ms less GPU time than a dual GPU setup.
The article stated it was an area that they would like to explore later but here we are, over a year later, with no report...