Star Wars: Battlefront Beta PC graphics performance review

Game reviews 126 Page 7 of 9 Published by

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FCAT Frametime Recording GeForce GTX 980 & Radeon R9 390X

 

Frametime and latency performance

With a benchmark technology called FCAT on the following two pages, we will look into Frame Experience Analysis. Basically with the charts shown we are trying to show you graphics anomalies like stutters and glitches in a plotted chart. Lately there has been a new measurement introduced, latency measurements. Basically it is the opposite of FPS.

  • FPS mostly measures performance, the number of frames rendered per passing second.
  • Frametime AKA Frame Experience recordings mostly measures and exposes anomalies - here we look at how long it takes to render one frame. Measure that chronologically and you can see anomalies like peaks and dips in a plotted chart, indicating something could be off. 
Frame time
in milliseconds
FPS
8.3 120
15 66
20 50
25 40
30 33
50 20
70 14

We have a detailed article (read here) on the new FCAT methodology used, and it also explains why we do not use FRAPS anymore. Frametime - Basically the time it takes to render one frame can be monitored and tagged with a number, this is latency. One frame can take say 17 ms. Higher latency can indicate a slow framerate, and weird latency spikes indicate a stutter, jitter, twitches; basically anomalies that are visible on your monitor.

What Do These Measurements Show?

Basically, what these measurements show are anomalies like small glitches and stutters that you can sometimes (and please do read that well, sometimes) see on screen. Below I'd like to run through a couple of titles with you. Bear in mind that Average FPS matters more than frametime measurements. 


Frame Pacing / Frametime - Single GPU



Plot-nv

Plot


Above the frame-time results of the test run @ 2560x1440 performed with a single GeForce GTX 980 and Radeon R9 390X (8GB). There was one stutter with the GTX 980, hey it happens. one of these really means nothing. The Radeon R9 390X is extremely smooth. Lets overlay the results and look again.

 

Plot-amd--nv

This test run lasts roughly 30 seconds. Overall this is darn smooth. It is interesting to see that a GTX 980 valued at € 549,95 is showing slightly higher latency overall (thus is a notch slower) opposed to the € 439,95 Radeon R9 390X. AMD is doing really well in this title. All cards in this article are running reference clocks.

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