<p>The GoPro4 Silver model uses the <a href="https://gopro.com/support/articles/hero4-silver-recording-time-in-each-video-setting" rel="nofollow">same bitrate</a> for 1080p-30 as 1080p-60 and hence the recording times are similar. This does mean that fewer bits are allocated per frame in the 60fps mode, although since the codec H264 uses inter-frame compression, the difference won't be as stark.</p>

CC BY-SA 3.0
2015-09-03T18:44:13.650Z
Thanks that explains it, i assumed that it uses that even if i put on 30 frames, but i could not understand how could 30fps version have less capacity than 60fps, it actually got lower it didnt remain on the same number, i'd just see that on 30fps i can take like 30minutes less video, which is naturally strange :)
vach
CC BY-SA 3.0
2015-09-02T20:07:35.123Z
2015-09-02T20:07:35.123Z
Gyan
<p>On latest GoPro 4 Silver with 64 GB</p>

<p>when i set 1080p 30fps i get estimated 4 hour recording time but when i double the framerate it not only does not shoren it actually increases so with 1080p 60fps it shows ~4.5 hour.</p>

<p>How is that?</p>

CC BY-SA 3.0
2015-09-02T18:18:15.417Z
I'm not sure why you would expect an increase in frame rate to result in a decrease in time. How would that work? The frame rate should have no effect on the duration -- recording an hour of video results in... an hour of video.
Jim Mack
CC BY-SA 3.0
2015-09-02T20:01:50.010Z
He's assuming (not unreasonably) that more frames will occupy more disk space and hence result in a lower capacity.
Gyan
CC BY-SA 3.0
2015-09-02T21:09:05.347Z
@Mulvya  Ah, so "recording time" means "available capacity". Got it.
Jim Mack
<framerate>
GoPro why high frame rate does not reduce time
vach
# GoPro why high frame rate does not reduce time

(Asked by: username_0 on 2015-09-02)

On latest GoPro 4 Silver with 64 GB

when i set 1080p 30fps i get estimated 4 hour recording time but when i double the framerate it not only does not shoren it actually increases so with 1080p 60fps it shows ~4.5 hour.

How is that?

**Tags:** framerate

> **Comments:**
> **username_1**: I'm not sure why you would expect an increase in frame rate to result in a decrease in time. How would that work? The frame rate should have no effect on the duration -- recording an hour of video results in... an hour of video.  
> **username_2**: He's assuming (not unreasonably) that more frames will occupy more disk space and hence result in a lower capacity.  
> **username_1**: @Mulvya  Ah, so "recording time" means "available capacity". Got it.  

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## 1 answers

### Answer by username_2 on 2015-09-02. Score: 2 | Accepted answer

The GoPro4 Silver model uses the [same bitrate](https://gopro.com/support/articles/hero4-silver-recording-time-in-each-video-setting) for 1080p-30 as 1080p-60 and hence the recording times are similar. This does mean that fewer bits are allocated per frame in the 60fps mode, although since the codec H264 uses inter-frame compression, the difference won't be as stark.

> **Comments:**
> **username_0**: Thanks that explains it, i assumed that it uses that even if i put on 30 frames, but i could not understand how could 30fps version have less capacity than 60fps, it actually got lower it didnt remain on the same number, i'd just see that on 30fps i can take like 30minutes less video, which is naturally strange :)  

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