30fps vs 60fps.. Help.

[K i a r a]

Hey

 

This might be a complete newbie question, But idk.

 

So, Ive been watching plenty of laptop guides, and while they are testing the gaming on the laptops. Some laptops are only able to hit 30fps on some games.

 

So they say "The game is completely playable at 30fps" Games like the Witcher 3, Or GTA 5

 

But when I watch YouTube videos of the games locked at 30fps it looks fine to me. Such as theses.

Spoiler

 

 

The game looks fine, and playable.

But when I play, Say Gta 5 and lock the FPS to 30, It looks crazy Choppy etc.

 

 

Thanks

[WereCat]

Thats because when you play at 30FPS, your frametimes are most likely all over the place. Meaning, that you may be able to render about 20frames in 0,5s and the rest of the other 10 frames are rendered in another 0,5s resulting in a stuttering.

 

While if you watch video that has 30FPS, it most likely have been recorded on a much higher framerate and the video is then processed during the encode, evenly splitting the frames over the second.

 

At 30FPS, you want each frame to be idealy rendered at around 33,3ms, but you are most likely rendering some frames in more than a 100ms which is definitely visible as a stutter.

 

(33,3ms x 30FPS = 1000ms = 1s)

 

So for a good playable 30FPS experience, you must actually have enough performance to render more than 30FPS and THEN lock the FPS to 30 to achieve stable frametimes.

Thats why these kind of reviews are prety much worthless, sicne they only claim FPS but if we are talking about 30FPS, the factor of frametimes is so much bigger that the FPS itself and so the FPS becomes irrelevant.

[RAM555789]

Well if your use to 60fps in games when your actually playing the game, its going to feel choppy, while if your going from 30fps to 60fps the games are going to suddenly feel super smooth. You don't get the same sense when recording since your not the one considering the spatial movement of controlling a character.