Click through the buttons above to see frame-by-frame results from a single test run for each of the graphics cards. You can see how there are occasional spikes on each of the cards. They tend to happen at the very beginning of each test run and a couple of times later, when I'm exploding dudes with dynamite arrows.
Intriguing. The 780 Ti produces the highest FPS average, yet it ties for fourth place behind a trio of Hawaii-based Radeons in the latency-focused 99th percentile frame time metric. Look at the latency curves for the different cards, and you can see why that is. The Radeons' latency curves are shaped somewhat differently; frame times stay low for just a little bit longer before curving upward to about the same terminus as the competing GeForces. Credit AMD's drivers and hardware for squeezing some rendering time out of the most difficult 1% of frames in this scene.
Still, this is a case where our choice to rule out all but the last 1% of frames rendered feels a little arbitrary. The latency curves are otherwise similar. Look at our "badness" measure, and the GTX 780 Ti spends less time working on frames that take longer than 16.7 milliseconds to render than any other card. Arguably, then, it's the smoothest of the bunch.
The bottom line is that we're talking about minor differences when all of the higher-end cards perform exceptionally well. There are a few frame time spikes on each of the cards' plots, but those appear to be caused by CPU bottlenecks. Almost all of the cards are affected similarly by those momentary hiccups.
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