FCAT Frame Experience Analysis BioShock Infinite

BioShock Infinite Frame Experience Analysis

Above a percentile chart of the 30 seconds @ 2560x1440. Here we plot FPS and place it in relation to percentiles. This methodology could be used to determine average FPS as well.

Check the 50% marker:

• GTX 780 Ti SLI does roughly 110 FPS on average in this scene sequence
• R9-290X CFX does roughly 90 FPS on average in this scene sequence

But now lets look at frame latency.

On this 30 Second run the graphics cards all manage a good result. Despite one or two very small spikes we cannot detect a glitch or stutter that is significant or long-lasting. For those that do not understand what you are looking at, the above is a game-time scene recorded for 30 seconds.

With this chart, lower = better. Huge spikes above 40ms to 50ms can be considered a problem like a stutter or indicate a low framerate. We see one spike for GTX 780 Ti, at 12 seconds into the scene time. Quite honestly it still is nothing to worry about as the overall plot is very smooth and similar spikes are noticeable with 290X CFX as well. 

In the FPS chart we plot FPS against the scene time. I noted a really minor framedrop, hard to see but it does register here in this plot as well. Othe than that overall excellent results.