The latest patch rolling out for Battlefield 4 introduces modifications to the game’s “netcode”. For PC, PS4 and Xbox One this includes something that DICE call the “High Frequency Bubble”.
Within a certain radius of the player, they’ve added the possibility to update the clients at a higher rate from the server. What this essentially means is that the server will update the client on what is happening more often than before. This normally results in a smoother, more “correct” player experience.
The High Frequency Update is by default turned OFF in this release. You will have to enable this setting to take advantage of the improved networking.
To support players with a limited bandwidth connection, the game supports three different levels: LOW, MEDIUM and HIGH. Most players with a connection faster than 1Mbit upload and 1Mbit download should be fine using the HIGH setting. If you experience any issues, lower or turn off the setting completely.
Playstation 4 & Xbox One Server Performance
The High Frequency Update will be rolled out to all 48 player servers and on a small set of 64 player servers immediately. We will then keep a close eye on the larger servers to make sure server performance stays good in the live environment. If all goes well, all servers will be supporting the high frequency update after 24 hours or rollout and testing.
PC Server Performance
On PC the Rented Server Providers are responsible for enabling the feature at their discretion, but DICE expect most to do so as soon as possible.
When testing the “High Frequency Bubble” changes to the network layer in Battlefield 4, DICE made sure to employ a measurable end-user experience metric. To do this, theyhave been using a 60fps video camera to capture two clients connected over the internet, and counting frames to get before and after results: