Can 4hz Laptop Be Used for Streaming?

There are thousands of video feeds, as well as cloud-based media services, from which you can choose for your gaming experience. However, all of those streams will show an approximate FOV. With this in mind, do you still want to use a laptop with a 4hz display for streaming? The answer is no, because the FOV is no longer a suitable factor to match with the monitors’ refresh rate. You also have to take into account latency, which often, even with a low FOV, results in a lag that is not acceptable. 4hz laptop screens are thus the enemy of gaming when it comes to streaming.

4hz and Hsync (Horizontal Synchronization Method)

Laptop displays often lack hardware synchronization, and this is why the 4hz processor refresh rate tends to be combined with hsync, the horizontal synchronization method. When using hsync, each frame is displayed on each monitor at the same time. However, when you’re gaming, lag is a factor. Laptop screens rarely sync, and even if they do, lag is a bigger factor. Another drawback of hsync is the latency it causes.

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As with everything else, latency decreases with better hardware, but it’s still an issue. 4hz processor cards don’t seem to suffer from lag, but as far as 4hz monitors are concerned, the issue with latency seems to only occur if the hsync implementation is somehow not correct. This, however, is not the only problem: If you’re using a low FOV, then the screens are unable to sync properly with each other when using hsync.

So in order to create a smooth and lag-free experience, you have to disable hsync and aim for a frame rate of 60hz. With the framerate at that level, you’re able to achieve a smooth framerate while keeping a good FOV without having to consider other hardware factors. If you would like to stay within the 4hz Laptop range, then you should stick to using an equirectangular fisheye lens instead of a periscope lens.

  • Look at it this way:

If you could use only 60hz laptops for streaming, lag wouldn’t be a problem. But because of hsync and 4hz laptop, the lag between the frames could be an issue, especially in comparison to a low FOV. Remember that even if you would be able to obtain a stable framerate with a 4hz laptop, then the image could still look somewhat jerky, which is not desirable either. This is why 4hz displays are only suitable for streaming when paired with low framerates.

4hz and Frame-Limiting

Of course, there are 4hz processors and monitors available for $100 that are capable of supplying a smooth framerate while maintaining a good FOV. With them, you would need to set the framerate at 60hz or higher, or else you will see a large amount of “motion blur” when you play. This is a huge problem that should not be solved with hardware alone. Frame limiting (or frame limiter) is an issue with some monitors. When using a low FOV, a monitor has to deactivate frame limiting so that the framerate would be maintained in order to avoid blurry video.

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Unfortunately, 4hz monitors and even equirectangular lenses will not be able to adapt properly to frame limiting. When framerates are low, frame limiting is used, but for low framerates, the high framerate from a higher framerate 4hz laptop’s monitor may not be visible. For these cases, you would want to use a framerate limiter to fix the problem, which can be found in the settings of a 4hz monitor.

On top of that, there are other situations that would make frame limiting a necessity: If you are using a low FOV, and you are using hsync for synchronization, then your frame rate is too low and your screen is becoming blurry or dark. This is especially true if you are using a webcam to connect with your streaming viewers, since the frame rate of the webcam could get a little slow as well. In order to maintain smooth video, you would want to use a framerate limiter.

Why Streaming in 4hz is Not Easy?

Streaming at 4hz processor is not the easiest thing to do. As mentioned before, the framerate may not be stable, and even if it is, the image may still appear blurry because the computers can only match the framerate. The following are the best ways to handle this:

  • Use an equirectangular lens instead of a periscope lens
  • Use the built-in framerate limiter in your laptops (since it supports 60hz)
  • Use a framerate limiter with a low FOV, as opposed to a high FOV that is incompatible with 4hz

The easiest way to connect a 4hz monitor to a computer with a framerate limiter would be to use a high-speed USB hub with a USB hub, which is compatible with 4hz monitors. You would also want to get the 4hz monitor with the built-in framerate limiter. The reason why is that some 4hz laptops do not have a framerate limiter built-in, and instead require a framerate limiter for synchronization. This is why it is better to use a monitor with a built-in framerate limiter.

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