In chrome dev tools, what is the speed of each preset option for network throttling?

Question

Since a recent update to chrome, the presets are no longer labelled with bandwidth.

Chrome used to list the actual speed of each one so you could simply tell.

W

Answer 1

Here is an old screenshot with the details

Answer 2

From Chrome DevTools’ source code, here are the presets:

/** @type {!Conditions} */
export const OfflineConditions = {
  title: Common.UIString.UIString('Offline'),
  download: 0,
  upload: 0,
  latency: 0,
};

/** @type {!Conditions} */
export const Slow3GConditions = {
  title: Common.UIString.UIString('Slow 3G'),
  download: 500 * 1024 / 8 * .8,
  upload: 500 * 1024 / 8 * .8,
  latency: 400 * 5,
};

/** @type {!Conditions} */
export const Fast3GConditions = {
  title: Common.UIString.UIString('Fast 3G'),
  download: 1.6 * 1024 * 1024 / 8 * .9,
  upload: 750 * 1024 / 8 * .9,
  latency: 150 * 3.75,
};

Answer 3

Here is a csv of the values in the screenshot from Robroi2000's answer

Preset,download(kb/s),upload(kb/s),RTT(ms)
GPRS,50,20,500
Regular 2G,250,50,300
Good 2G,450,150,150
Regular 3G,750,250,100
Good 3G, 1000,750,40
Regular 4G, 4000,3000,20
DSL 2000, 1000,5
WiFi 30000,150000,2

Answer 4

I did some measurements with two speed tests available in the internet. With the following custom profile I received similar download speed and ping latency as with the presets.

Slow 3G Custom: Download 376 kb/s, Latency 2000 ms
Fast 3G Custom: Download 1500 kb/s = 1.5 Mb/s, Latency = 550 ms

The actually download speed measured via the speed tests was only slightly below the configured values. The measured ping latency was half of the value configured in the custom profile.